diff --git a/ApiTestManager/package-lock.json b/ApiTestManager/package-lock.json
index ead3678..2053476 100644
--- a/ApiTestManager/package-lock.json
+++ b/ApiTestManager/package-lock.json
@@ -10,18 +10,26 @@
       "license": "ISC",
       "dependencies": {
         "@popperjs/core": "^2.11.8",
+        "@stomp/stompjs": "^7.0.0",
         "drawflow": "^0.0.59",
+        "dropzone": "^6.0.0-beta.2",
+        "golden-layout": "^2.6.0",
         "jqueryui": "^1.11.1",
         "monaco-editor": "^0.45.0",
-        "monaco-editor-workers": "^0.45.0"
+        "monaco-editor-workers": "^0.45.0",
+        "sockjs-client": "^1.6.1",
+        "split-grid": "^1.0.11",
+        "x-data-spreadsheet": "^1.1.9"
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         "@babel/core": "^7.23.7",
         "@babel/preset-env": "^7.23.8",
         "babel-loader": "^9.1.3",
-        "css-loader": "^6.9.0",
+        "css-loader": "^6.10.0",
         "expose-loader": "^4.1.0",
         "file-loader": "^6.2.0",
+        "less": "^4.2.0",
+        "less-loader": "^12.2.0",
         "monaco-editor-webpack-plugin": "^7.1.0",
         "rimraf": "^5.0.5",
         "style-loader": "^3.3.4",
@@ -1806,6 +1814,16 @@
         "url": "https://opencollective.com/popperjs"
       }
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+    "node_modules/@stomp/stompjs": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@stomp/stompjs/-/stompjs-7.0.0.tgz",
+      "integrity": "sha512-fGdq4wPDnSV/KyOsjq4P+zLc8MFWC3lMmP5FBgLWKPJTYcuCbAIrnRGjB7q2jHZdYCOD5vxLuFoKIYLy5/u8Pw=="
+    },
+    "node_modules/@swc/helpers": {
+      "version": "0.2.14",
+      "resolved": "https://registry.npmjs.org/@swc/helpers/-/helpers-0.2.14.tgz",
+      "integrity": "sha512-wpCQMhf5p5GhNg2MmGKXzUNwxe7zRiCsmqYsamez2beP7mKPCSiu+BjZcdN95yYSzO857kr0VfQewmGpS77nqA=="
+    },
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       "resolved": "https://registry.npmjs.org/@types/body-parser/-/body-parser-1.19.5.tgz",
@@ -2286,6 +2304,14 @@
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+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-1.4.0.tgz",
+      "integrity": "sha512-wiXutNjDUlNEDWHcYH3jtZUhd3c4/VojassD8zHdHCY13xbZy2XbW+NKQwA0tWGBVzDA9qEzYwfoSsWmviidhw==",
+      "engines": {
+        "node": ">=0.10.0"
+      }
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       "resolved": "https://registry.npmjs.org/ansi-html-community/-/ansi-html-community-0.0.8.tgz",
@@ -2397,6 +2423,35 @@
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       }
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+    "node_modules/babel-polyfill": {
+      "version": "6.23.0",
+      "resolved": "https://registry.npmjs.org/babel-polyfill/-/babel-polyfill-6.23.0.tgz",
+      "integrity": "sha512-0l7mVU+LrQ2X/ZTUq63T5i3VyR2aTgcRTFmBcD6djQ/Fek6q1A9t5u0F4jZVYHzp78jwWAzGfLpAY1b4/I3lfg==",
+      "dependencies": {
+        "babel-runtime": "^6.22.0",
+        "core-js": "^2.4.0",
+        "regenerator-runtime": "^0.10.0"
+      }
+    },
+    "node_modules/babel-polyfill/node_modules/regenerator-runtime": {
+      "version": "0.10.5",
+      "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.10.5.tgz",
+      "integrity": "sha512-02YopEIhAgiBHWeoTiA8aitHDt8z6w+rQqNuIftlM+ZtvSl/brTouaU7DW6GO/cHtvxJvS4Hwv2ibKdxIRi24w=="
+    },
+    "node_modules/babel-runtime": {
+      "version": "6.26.0",
+      "resolved": "https://registry.npmjs.org/babel-runtime/-/babel-runtime-6.26.0.tgz",
+      "integrity": "sha512-ITKNuq2wKlW1fJg9sSW52eepoYgZBggvOAHC0u/CYu/qxQ9EVzThCgR69BnSXLHjy2f7SY5zaQ4yt7H9ZVxY2g==",
+      "dependencies": {
+        "core-js": "^2.4.0",
+        "regenerator-runtime": "^0.11.0"
+      }
+    },
+    "node_modules/babel-runtime/node_modules/regenerator-runtime": {
+      "version": "0.11.1",
+      "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz",
+      "integrity": "sha512-MguG95oij0fC3QV3URf4V2SDYGJhJnJGqvIIgdECeODCT98wSWDAJ94SSuVpYQUoTcGUIL6L4yNB7j1DFFHSBg=="
+    },
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       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
@@ -2601,6 +2656,11 @@
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+    "node_modules/chardet": {
+      "version": "0.4.2",
+      "resolved": "https://registry.npmjs.org/chardet/-/chardet-0.4.2.tgz",
+      "integrity": "sha512-j/Toj7f1z98Hh2cYo2BVr85EpIRWqUi7rtRSGxh/cqUjqrnJe9l9UE7IUGd2vQ2p+kSHLkSzObQPZPLUC6TQwg=="
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@@ -2637,6 +2697,22 @@
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       }
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+    "node_modules/cli-cursor": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-2.1.0.tgz",
+      "integrity": "sha512-8lgKz8LmCRYZZQDpRyT2m5rKJ08TnU4tR9FFFW2rxpxR1FzWi4PQ/NfyODchAatHaUgnSPVcx/R5w6NuTBzFiw==",
+      "dependencies": {
+        "restore-cursor": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/cli-width": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/cli-width/-/cli-width-2.2.1.tgz",
+      "integrity": "sha512-GRMWDxpOB6Dgk2E5Uo+3eEBvtOOlimMmpbFiKuLFnQzYDavtLFY3K5ona41jgN/WdRZtG7utuVSVTL4HbZHGkw=="
+    },
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       "resolved": "https://registry.npmjs.org/clone-deep/-/clone-deep-4.0.1.tgz",
@@ -2792,6 +2868,25 @@
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       "dev": true
     },
+    "node_modules/copy-anything": {
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/copy-anything/-/copy-anything-2.0.6.tgz",
+      "integrity": "sha512-1j20GZTsvKNkc4BY3NpMOM8tt///wY3FpIzozTOFO2ffuZcV61nojHXVKIy3WM+7ADCy5FVhdZYHYDdgTU0yJw==",
+      "dev": true,
+      "dependencies": {
+        "is-what": "^3.14.1"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/mesqueeb"
+      }
+    },
+    "node_modules/core-js": {
+      "version": "2.6.12",
+      "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.6.12.tgz",
+      "integrity": "sha512-Kb2wC0fvsWfQrgk8HU5lW6U/Lcs8+9aaYcy4ZFc6DDlo4nZ7n70dEgE5rtR0oG6ufKDUnrwfWL1mXR5ljDatrQ==",
+      "deprecated": "core-js@<3.23.3 is no longer maintained and not recommended for usage due to the number of issues. Because of the V8 engine whims, feature detection in old core-js versions could cause a slowdown up to 100x even if nothing is polyfilled. Some versions have web compatibility issues. Please, upgrade your dependencies to the actual version of core-js.",
+      "hasInstallScript": true
+    },
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@@ -2826,16 +2921,16 @@
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+      "version": "6.10.0",
+      "resolved": "https://registry.npmjs.org/css-loader/-/css-loader-6.10.0.tgz",
+      "integrity": "sha512-LTSA/jWbwdMlk+rhmElbDR2vbtQoTBPr7fkJE+mxrHj+7ru0hUmHafDRzWIjIHTwpitWVaqY2/UWGRca3yUgRw==",
       "dev": true,
       "dependencies": {
         "icss-utils": "^5.1.0",
-        "postcss": "^8.4.31",
+        "postcss": "^8.4.33",
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-        "postcss-modules-local-by-default": "^4.0.3",
-        "postcss-modules-scope": "^3.1.0",
+        "postcss-modules-local-by-default": "^4.0.4",
+        "postcss-modules-scope": "^3.1.1",
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         "postcss-value-parser": "^4.2.0",
         "semver": "^7.5.4"
@@ -2848,7 +2943,16 @@
         "url": "https://opencollective.com/webpack"
       },
       "peerDependencies": {
+        "@rspack/core": "0.x || 1.x",
         "webpack": "^5.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@rspack/core": {
+          "optional": true
+        },
+        "webpack": {
+          "optional": true
+        }
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@@ -2990,6 +3094,15 @@
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     },
+    "node_modules/dropzone": {
+      "version": "6.0.0-beta.2",
+      "resolved": "https://registry.npmjs.org/dropzone/-/dropzone-6.0.0-beta.2.tgz",
+      "integrity": "sha512-k44yLuFFhRk53M8zP71FaaNzJYIzr99SKmpbO/oZKNslDjNXQsBTdfLs+iONd0U0L94zzlFzRnFdqbLcs7h9fQ==",
+      "dependencies": {
+        "@swc/helpers": "^0.2.13",
+        "just-extend": "^5.0.0"
+      }
+    },
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@@ -3032,6 +3145,25 @@
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+      "resolved": "https://registry.npmjs.org/encoding/-/encoding-0.1.13.tgz",
+      "integrity": "sha512-ETBauow1T35Y/WZMkio9jiM0Z5xjHHmJ4XmjZOq1l/dXz3lr2sRn87nJy20RupqSh1F2m3HHPSp8ShIPQJrJ3A==",
+      "dependencies": {
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+      }
+    },
+    "node_modules/encoding/node_modules/iconv-lite": {
+      "version": "0.6.3",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
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@@ -3057,6 +3189,19 @@
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+      "resolved": "https://registry.npmjs.org/errno/-/errno-0.1.8.tgz",
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+      "optional": true,
+      "dependencies": {
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@@ -3163,6 +3307,14 @@
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+    "node_modules/external-editor": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/external-editor/-/external-editor-2.2.0.tgz",
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+        "tmp": "^0.0.33"
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@@ -3292,6 +3456,17 @@
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+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/figures/-/figures-2.0.0.tgz",
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@@ -3633,6 +3808,11 @@
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+      "resolved": "https://registry.npmjs.org/golden-layout/-/golden-layout-2.6.0.tgz",
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+    "node_modules/has-ansi": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-2.0.0.tgz",
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+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
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@@ -3871,6 +4068,19 @@
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+      "resolved": "https://registry.npmjs.org/image-size/-/image-size-0.5.5.tgz",
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+      "dev": true,
+      "optional": true,
+      "bin": {
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@@ -3976,8 +4186,116 @@
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+      }
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+      "resolved": "https://registry.npmjs.org/opn/-/opn-4.0.2.tgz",
+      "integrity": "sha512-iPBWbPP4OEOzR1xfhpGLDh+ypKBOygunZhM9jBtA7FS5sKjEiMZw0EFb82hnDOmTZX90ZWLoZKUza4cVt8MexA==",
+      "dependencies": {
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+        "pinkie-promise": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/os-tmpdir": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz",
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+      "engines": {
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+      }
+    },
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       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-4.0.0.tgz",
@@ -4692,6 +5261,15 @@
         "node": ">=6"
       }
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+    "node_modules/parse-node-version": {
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+      "resolved": "https://registry.npmjs.org/parse-node-version/-/parse-node-version-1.0.1.tgz",
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+      "dev": true,
+      "engines": {
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+      }
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@@ -4783,6 +5361,35 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
+    "node_modules/pify": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/pify/-/pify-4.0.1.tgz",
+      "integrity": "sha512-uB80kBFb/tfd68bVleG9T5GGsGPjJrLAUpR5PZIrhBnIaRTQRjqdJSsIKkOP6OAIFbj7GOrcudc5pNjZ+geV2g==",
+      "dev": true,
+      "optional": true,
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/pinkie": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/pinkie/-/pinkie-2.0.4.tgz",
+      "integrity": "sha512-MnUuEycAemtSaeFSjXKW/aroV7akBbY+Sv+RkyqFjgAe73F+MR0TBWKBRDkmfWq/HiFmdavfZ1G7h4SPZXaCSg==",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/pinkie-promise": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/pinkie-promise/-/pinkie-promise-2.0.1.tgz",
+      "integrity": "sha512-0Gni6D4UcLTbv9c57DfxDGdr41XfgUjqWZu492f0cIGr16zDU06BWP/RAEvOuo7CQ0CNjHaLlM59YJJFm3NWlw==",
+      "dependencies": {
+        "pinkie": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/pkg-dir": {
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/pkg-dir/-/pkg-dir-7.0.0.tgz",
@@ -4839,9 +5446,9 @@
       }
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-      "version": "4.0.3",
-      "resolved": "https://registry.npmjs.org/postcss-modules-local-by-default/-/postcss-modules-local-by-default-4.0.3.tgz",
-      "integrity": "sha512-2/u2zraspoACtrbFRnTijMiQtb4GW4BvatjaG/bCjYQo8kLTdevCUlwuBHx2sCnSyrI3x3qj4ZK1j5LQBgzmwA==",
+      "version": "4.0.4",
+      "resolved": "https://registry.npmjs.org/postcss-modules-local-by-default/-/postcss-modules-local-by-default-4.0.4.tgz",
+      "integrity": "sha512-L4QzMnOdVwRm1Qb8m4x8jsZzKAaPAgrUF1r/hjDR2Xj7R+8Zsf97jAlSQzWtKx5YNiNGN8QxmPFIc/sh+RQl+Q==",
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@@ -4856,9 +5463,9 @@
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-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/postcss-modules-scope/-/postcss-modules-scope-3.1.0.tgz",
-      "integrity": "sha512-SaIbK8XW+MZbd0xHPf7kdfA/3eOt7vxJ72IRecn3EzuZVLr1r0orzf0MX/pN8m+NMDoo6X/SQd8oeKqGZd8PXg==",
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/postcss-modules-scope/-/postcss-modules-scope-3.1.1.tgz",
+      "integrity": "sha512-uZgqzdTleelWjzJY+Fhti6F3C9iF1JR/dODLs/JDefozYcKTBCdD8BIl6nNPbTbcLnGrk56hzwZC2DaGNvYjzA==",
       "dev": true,
       "dependencies": {
         "postcss-selector-parser": "^6.0.4"
@@ -4932,6 +5539,13 @@
         "node": ">= 0.10"
       }
     },
+    "node_modules/prr": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/prr/-/prr-1.0.1.tgz",
+      "integrity": "sha512-yPw4Sng1gWghHQWj0B3ZggWUm4qVbPwPFcRG8KyxiU7J2OHFSoEHKS+EZ3fv5l1t9CyCiop6l/ZYeWbrgoQejw==",
+      "dev": true,
+      "optional": true
+    },
     "node_modules/punycode": {
       "version": "2.3.1",
       "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.3.1.tgz",
@@ -4956,6 +5570,11 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/querystringify": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/querystringify/-/querystringify-2.2.0.tgz",
+      "integrity": "sha512-FIqgj2EUvTa7R50u0rGsyTftzjYmv/a3hO345bZNrqabNqjtgiDMgmo4mkUjd+nzU5oF3dClKqFIPUKybUyqoQ=="
+    },
     "node_modules/randombytes": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.1.0.tgz",
@@ -5119,8 +5738,7 @@
     "node_modules/requires-port": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/requires-port/-/requires-port-1.0.0.tgz",
-      "integrity": "sha512-KigOCHcocU3XODJxsu8i/j8T9tzT4adHiecwORRQ0ZZFcp7ahwXuRU1m+yuO90C5ZUyGeGfocHDI14M3L3yDAQ==",
-      "dev": true
+      "integrity": "sha512-KigOCHcocU3XODJxsu8i/j8T9tzT4adHiecwORRQ0ZZFcp7ahwXuRU1m+yuO90C5ZUyGeGfocHDI14M3L3yDAQ=="
     },
     "node_modules/resolve": {
       "version": "1.22.8",
@@ -5160,6 +5778,37 @@
         "node": ">=8"
       }
     },
+    "node_modules/restore-cursor": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/restore-cursor/-/restore-cursor-2.0.0.tgz",
+      "integrity": "sha512-6IzJLuGi4+R14vwagDHX+JrXmPVtPpn4mffDJ1UdR7/Edm87fl6yi8mMBIVvFtJaNTUvjughmW4hwLhRG7gC1Q==",
+      "dependencies": {
+        "onetime": "^2.0.0",
+        "signal-exit": "^3.0.2"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/restore-cursor/node_modules/mimic-fn": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/mimic-fn/-/mimic-fn-1.2.0.tgz",
+      "integrity": "sha512-jf84uxzwiuiIVKiOLpfYk7N46TSy8ubTonmneY9vrpHNAnp0QBt2BxWV9dO3/j+BoVAb+a5G6YDPW3M5HOdMWQ==",
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/restore-cursor/node_modules/onetime": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/onetime/-/onetime-2.0.1.tgz",
+      "integrity": "sha512-oyyPpiMaKARvvcgip+JV+7zci5L8D1W9RZIz2l1o08AM3pfspitVWnPt3mzHcBPp12oYMTy0pqrFs/C+m3EwsQ==",
+      "dependencies": {
+        "mimic-fn": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/retry": {
       "version": "0.13.1",
       "resolved": "https://registry.npmjs.org/retry/-/retry-0.13.1.tgz",
@@ -5187,11 +5836,23 @@
         "url": "https://github.com/sponsors/isaacs"
       }
     },
+    "node_modules/run-async": {
+      "version": "2.4.1",
+      "resolved": "https://registry.npmjs.org/run-async/-/run-async-2.4.1.tgz",
+      "integrity": "sha512-tvVnVv01b8c1RrA6Ep7JkStj85Guv/YrMcwqYQnwjsAS2cTmmPGBBjAjpCW7RrSodNSoE2/qg9O4bceNvUuDgQ==",
+      "engines": {
+        "node": ">=0.12.0"
+      }
+    },
+    "node_modules/rx": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/rx/-/rx-4.1.0.tgz",
+      "integrity": "sha512-CiaiuN6gapkdl+cZUr67W6I8jquN4lkak3vtIsIWCl4XIPP8ffsoyN6/+PuGXnQy8Cu8W2y9Xxh31Rq4M6wUug=="
+    },
     "node_modules/safe-buffer": {
       "version": "5.2.1",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
       "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
-      "dev": true,
       "funding": [
         {
           "type": "github",
@@ -5210,8 +5871,14 @@
     "node_modules/safer-buffer": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
-      "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
-      "dev": true
+      "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
+    },
+    "node_modules/sax": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/sax/-/sax-1.3.0.tgz",
+      "integrity": "sha512-0s+oAmw9zLl1V1cS9BtZN7JAd0cW5e0QH4W3LWEK6a4LaLEA2OTpGYWDY+6XasBLtz6wkm3u1xRw95mRuJ59WA==",
+      "dev": true,
+      "optional": true
     },
     "node_modules/schema-utils": {
       "version": "4.2.0",
@@ -5488,8 +6155,7 @@
     "node_modules/signal-exit": {
       "version": "3.0.7",
       "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.7.tgz",
-      "integrity": "sha512-wnD2ZE+l+SPC/uoS0vXeE9L1+0wuaMqKlfz9AMUo38JsyLSBWSFcHR1Rri62LZc12vLr1gb3jl7iwQhgwpAbGQ==",
-      "dev": true
+      "integrity": "sha512-wnD2ZE+l+SPC/uoS0vXeE9L1+0wuaMqKlfz9AMUo38JsyLSBWSFcHR1Rri62LZc12vLr1gb3jl7iwQhgwpAbGQ=="
     },
     "node_modules/sockjs": {
       "version": "0.3.24",
@@ -5502,6 +6168,32 @@
         "websocket-driver": "^0.7.4"
       }
     },
+    "node_modules/sockjs-client": {
+      "version": "1.6.1",
+      "resolved": "https://registry.npmjs.org/sockjs-client/-/sockjs-client-1.6.1.tgz",
+      "integrity": "sha512-2g0tjOR+fRs0amxENLi/q5TiJTqY+WXFOzb5UwXndlK6TO3U/mirZznpx6w34HVMoc3g7cY24yC/ZMIYnDlfkw==",
+      "dependencies": {
+        "debug": "^3.2.7",
+        "eventsource": "^2.0.2",
+        "faye-websocket": "^0.11.4",
+        "inherits": "^2.0.4",
+        "url-parse": "^1.5.10"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://tidelift.com/funding/github/npm/sockjs-client"
+      }
+    },
+    "node_modules/sockjs-client/node_modules/debug": {
+      "version": "3.2.7",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.7.tgz",
+      "integrity": "sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==",
+      "dependencies": {
+        "ms": "^2.1.1"
+      }
+    },
     "node_modules/source-map": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
@@ -5560,6 +6252,11 @@
         "wbuf": "^1.7.3"
       }
     },
+    "node_modules/split-grid": {
+      "version": "1.0.11",
+      "resolved": "https://registry.npmjs.org/split-grid/-/split-grid-1.0.11.tgz",
+      "integrity": "sha512-ELtFtxc3r5we5GZfe6Fi0BFFxIi2M6BY1YEntBscKRDD3zx4JVHqx2VnTRSQu1BixCYSTH3MTjKd4esI2R7EgQ=="
+    },
     "node_modules/statuses": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz",
@@ -5833,12 +6530,28 @@
         "url": "https://opencollective.com/webpack"
       }
     },
+    "node_modules/through": {
+      "version": "2.3.8",
+      "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
+      "integrity": "sha512-w89qg7PI8wAdvX60bMDP+bFoD5Dvhm9oLheFp5O4a2QF0cSBGsBX4qZmadPMvVqlLJBBci+WqGGOAPvcDeNSVg=="
+    },
     "node_modules/thunky": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/thunky/-/thunky-1.1.0.tgz",
       "integrity": "sha512-eHY7nBftgThBqOyHGVN+l8gF0BucP09fMo0oO/Lb0w1OF80dJv+lDVpXG60WMQvkcxAkNybKsrEIE3ZtKGmPrA==",
       "dev": true
     },
+    "node_modules/tmp": {
+      "version": "0.0.33",
+      "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.33.tgz",
+      "integrity": "sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==",
+      "dependencies": {
+        "os-tmpdir": "~1.0.2"
+      },
+      "engines": {
+        "node": ">=0.6.0"
+      }
+    },
     "node_modules/to-fast-properties": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
@@ -5869,6 +6582,12 @@
         "node": ">=0.6"
       }
     },
+    "node_modules/tslib": {
+      "version": "2.6.2",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz",
+      "integrity": "sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q==",
+      "dev": true
+    },
     "node_modules/type-is": {
       "version": "1.6.18",
       "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
@@ -5976,6 +6695,15 @@
         "punycode": "^2.1.0"
       }
     },
+    "node_modules/url-parse": {
+      "version": "1.5.10",
+      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.5.10.tgz",
+      "integrity": "sha512-WypcfiRhfeUP9vvF0j6rw0J3hrWrw6iZv3+22h6iRMJ/8z1Tj6XfLP4DsUix5MhMPnXpiHDoKyoZ/bdCkwBCiQ==",
+      "dependencies": {
+        "querystringify": "^2.1.1",
+        "requires-port": "^1.0.0"
+      }
+    },
     "node_modules/util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
@@ -6347,7 +7075,6 @@
       "version": "0.7.4",
       "resolved": "https://registry.npmjs.org/websocket-driver/-/websocket-driver-0.7.4.tgz",
       "integrity": "sha512-b17KeDIQVjvb0ssuSDF2cYXSg2iztliJ4B9WdsuB6J952qCPKmnVq4DyW5motImXHDC1cBT/1UezrJVsKw5zjg==",
-      "dev": true,
       "dependencies": {
         "http-parser-js": ">=0.5.1",
         "safe-buffer": ">=5.1.0",
@@ -6361,7 +7088,6 @@
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.4.tgz",
       "integrity": "sha512-OqedPIGOfsDlo31UNwYbCFMSaO9m9G/0faIHj5/dZFDMFqPTcx6UwqyOy3COEaEOg/9VsGIpdqn62W5KhoKSpg==",
-      "dev": true,
       "engines": {
         "node": ">=0.8.0"
       }
@@ -6535,6 +7261,16 @@
         }
       }
     },
+    "node_modules/x-data-spreadsheet": {
+      "version": "1.1.9",
+      "resolved": "https://registry.npmjs.org/x-data-spreadsheet/-/x-data-spreadsheet-1.1.9.tgz",
+      "integrity": "sha512-wk7knDBYdHjtWiHUVQryZMy00dsGNCF+6wMb5ykwEFcAtBYkYZakJCOCHpEo8onC0Lb/q2gIynWpbQxA4qakyg==",
+      "hasInstallScript": true,
+      "dependencies": {
+        "opencollective": "^1.0.3",
+        "opencollective-postinstall": "^2.0.2"
+      }
+    },
     "node_modules/yallist": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
diff --git a/ApiTestManager/package.json b/ApiTestManager/package.json
index a43b56f..44d7f78 100644
--- a/ApiTestManager/package.json
+++ b/ApiTestManager/package.json
@@ -16,9 +16,11 @@
     "@babel/core": "^7.23.7",
     "@babel/preset-env": "^7.23.8",
     "babel-loader": "^9.1.3",
-    "css-loader": "^6.9.0",
+    "css-loader": "^6.10.0",
     "expose-loader": "^4.1.0",
     "file-loader": "^6.2.0",
+    "less": "^4.2.0",
+    "less-loader": "^12.2.0",
     "monaco-editor-webpack-plugin": "^7.1.0",
     "rimraf": "^5.0.5",
     "style-loader": "^3.3.4",
@@ -28,9 +30,15 @@
   },
   "dependencies": {
     "@popperjs/core": "^2.11.8",
+    "@stomp/stompjs": "^7.0.0",
     "drawflow": "^0.0.59",
+    "dropzone": "^6.0.0-beta.2",
+    "golden-layout": "^2.6.0",
     "jqueryui": "^1.11.1",
     "monaco-editor": "^0.45.0",
-    "monaco-editor-workers": "^0.45.0"
+    "monaco-editor-workers": "^0.45.0",
+    "sockjs-client": "^1.6.1",
+    "split-grid": "^1.0.11",
+    "x-data-spreadsheet": "^1.1.9"
   }
 }
diff --git a/ApiTestManager/src/APIClient.js b/ApiTestManager/src/APIClient.js
index 84d5846..c18a00b 100644
--- a/ApiTestManager/src/APIClient.js
+++ b/ApiTestManager/src/APIClient.js
@@ -8,159 +8,156 @@
 
 class APIClient {
 
-    CLIENT_URL = 'mgmt/api/test.do';
+  CLIENT_URL = 'mgmt/api/test.do';
 
-    constructor() {
-        window.globals = {};
-        this.variables = {};
-        this.abortController = null;
-        this.contextPath = document.querySelector('meta[name="context-path"]').getAttribute('content');
+  constructor() {
+    window.globals = {};
+    this.variables = {};
+    this.abortController = null;
+    this.contextPath = document.querySelector('meta[name="context-path"]').getAttribute('content');
 
-        if (!this.contextPath) {
-            this.contextPath = '/';
+    if (!this.contextPath) {
+      this.contextPath = '/';
+    }
+
+    if (!this.contextPath.endsWith('/')) {
+      this.contextPath += '/';
+    }
+  }
+
+  getClientUrl() {
+    return this.contextPath + this.CLIENT_URL;
+  }
+
+  async sendAPIRequest(model, preProcessCallback, consoleOutput) {
+    try {
+      const updatedModel = await this.executePreRequestScript(model, consoleOutput);
+      let processedRequest = this.replacePlaceholdersWithVariables(updatedModel);
+
+      if (preProcessCallback) {
+        preProcessCallback(processedRequest);
+      }
+      const response = await this.makeAjaxRequest(processedRequest, model, consoleOutput);
+      const responseData = await response.json(); // Parse the JSON response
+
+      if (!response.ok) {
+        const errorMessage = responseData.error || 'Unknown error';
+        throw new Error(`API 호출 중 오류가 발생했습니다. 사유[${errorMessage}]`);
+      }
+
+      const finalResponse = this.formatResponse(responseData);
+      return this.executePostRequestScript(model.postRequestScript, finalResponse, consoleOutput).catch(error => {
+        $('.toast-body').text(error);
+        $('.toast').toast('show');
+        return finalResponse; // Return the original response even if there's an error in the post-request script
+      });
+
+    } catch (error) {
+      throw error;
+    }
+  }
+
+  formatResponse(data) {
+    // Format response as needed before post-request script
+    let response = {};
+    response.body = data.body;
+    response.status = data.status;
+    response.headers = {};
+    response.size = data.size;
+    _.forEach(data.headers, (header) => {
+      response.headers[header.key] = header.value;
+    });
+    return response;
+  }
+
+  abort() {
+    if (this.abortController) {
+      this.abortController.abort(); // abort the fetch
+      this.abortController = null; // reset the controller
+    }
+  }
+
+  makeAjaxRequest(processedRequest, model) {
+    this.abortController = new AbortController();
+    const {signal} = this.abortController;
+
+    try {
+      return fetch(this.getClientUrl(), {
+        method: 'POST',
+        headers: {
+          'Content-Type': 'application/json',
+          'X-XSRF-TOKEN': $('meta[name="_csrf"]').attr('content')
+        },
+        body: JSON.stringify(processedRequest),
+        signal: signal // pass the signal to the fetch
+      });
+    } catch (error) {
+      if (error.name !== 'AbortError') {
+        console.error('Network request failed:', error);
+      }
+      throw error;
+    }
+  }
+
+  replacePlaceholdersWithVariables(original) {
+    let request = JSON.parse(JSON.stringify(original));
+
+    let mergedVariables = {};
+    _.forEach(window.globals, (value, key) => {
+      mergedVariables[key] = value;
+    });
+
+    if (this.variables) {
+      _.forEach(this.variables, (value, key) => {
+        mergedVariables[key] = value;
+      });
+    }
+
+    _.forEach(mergedVariables, (value, key) => {
+      const placeholder = `{{${key}}}`;
+      // Replace in path
+      request.path = request.path.replace(new RegExp(placeholder, 'g'), value);
+
+      // Replace in requestBody
+      if (request.requestBody) {
+        request.requestBody = request.requestBody.replace(new RegExp(placeholder, 'g'), value);
+      }
+
+      // Replace in headers
+      if (request.headers) {
+        let replaced = JSON.stringify(request.headers).replace(new RegExp(placeholder, 'g'), value);
+        request.headers = JSON.parse(replaced);
+      }
+
+      // Replace in queryParams
+      if (request.queryParams) {
+        let replaced = JSON.stringify(request.queryParams).replace(new RegExp(placeholder, 'g'), value);
+        request.queryParams = JSON.parse(replaced);
+      }
+    });
+
+    return request;
+  }
+
+  executePreRequestScript(model, consoleOutput) {
+    return new Promise((resolve, reject) => {
+      let script = model.preRequestScript;
+      let resultFrame = document.getElementById('preRequest');
+
+      this.variables = {};
+
+      window.preRequestComplete = (updatedModel, error) => {
+        if (error) {
+          reject(error);
+        } else {
+          resolve(updatedModel);
         }
+      };
 
-        if (!this.contextPath.endsWith('/')) {
-            this.contextPath += '/';
-        }
-    }
-
-    getClientUrl() {
-        return this.contextPath + this.CLIENT_URL;
-    }
-
-    async sendAPIRequest(model, preProcessCallback, consoleOutput) {
-        try {
-            const updatedModel = await this.executePreRequestScript(model, consoleOutput);
-            let processedRequest = this.replacePlaceholdersWithVariables(updatedModel);
-
-            if (preProcessCallback) {
-                preProcessCallback(processedRequest);
-            }
-            const response = await this.makeAjaxRequest(processedRequest, model, consoleOutput);
-            const responseData = await response.json(); // Parse the JSON response
-
-            if (!response.ok) {
-                const errorMessage = responseData.error || 'Unknown error';
-                throw new Error(`API 호출 중 오류가 발생했습니다. 사유[${errorMessage}]`);
-            }
-
-            const finalResponse = this.formatResponse(responseData);
-            return this.executePostRequestScript(model.postRequestScript, finalResponse, consoleOutput)
-                .catch(error => {
-                    $('.toast-body').text(error);
-                    $('.toast').toast('show');
-                    return finalResponse; // Return the original response even if there's an error in the post-request script
-                });
-
-        } catch (error) {
-            throw error;
-        }
-    }
-
-    formatResponse(data) {
-        // Format response as needed before post-request script
-        let response = {};
-        response.body = data.body;
-        response.status = data.status;
-        response.headers = {};
-        response.size = data.size;
-        _.forEach(data.headers, (header) => {
-            response.headers[header.key] = header.value;
-        });
-        return response;
-    }
-
-    abort() {
-        if (this.abortController) {
-            this.abortController.abort(); // abort the fetch
-            this.abortController = null; // reset the controller
-        }
-    }
-
-    makeAjaxRequest(processedRequest, model) {
-        this.abortController = new AbortController();
-        const {signal} = this.abortController;
-
-        try {
-            return fetch(this.getClientUrl(), {
-                method: 'POST',
-                headers: {
-                    'Content-Type': 'application/json',
-                    'X-XSRF-TOKEN': $('meta[name="_csrf"]').attr('content')
-                },
-                body: JSON.stringify(processedRequest),
-                signal: signal // pass the signal to the fetch
-            });
-        } catch (error) {
-            if (error.name !== 'AbortError') {
-                console.error('Network request failed:', error);
-            }
-            throw error;
-        }
-    }
-
-
-    replacePlaceholdersWithVariables(original) {
-        let request = JSON.parse(JSON.stringify(original));
-
-        let mergedVariables = {};
-        _.forEach(window.globals, (value, key) => {
-            mergedVariables[key] = value;
-        });
-
-        if (this.variables) {
-            _.forEach(this.variables, (value, key) => {
-                mergedVariables[key] = value;
-            });
-        }
-
-        _.forEach(mergedVariables, (value, key) => {
-            const placeholder = `{{${key}}}`;
-            // Replace in path
-            request.path = request.path.replace(new RegExp(placeholder, 'g'), value);
-
-            // Replace in requestBody
-            if (request.requestBody) {
-                request.requestBody = request.requestBody.replace(new RegExp(placeholder, 'g'), value);
-            }
-
-            // Replace in headers
-            if (request.headers) {
-                let replaced = JSON.stringify(request.headers).replace(new RegExp(placeholder, 'g'), value);
-                request.headers = JSON.parse(replaced);
-            }
-
-            // Replace in queryParams
-            if (request.queryParams) {
-                let replaced = JSON.stringify(request.queryParams).replace(new RegExp(placeholder, 'g'), value);
-                request.queryParams = JSON.parse(replaced);
-            }
-        });
-
-        return request;
-    }
-
-
-    executePreRequestScript(model, consoleOutput) {
-        return new Promise((resolve, reject) => {
-            let script = model.preRequestScript;
-            let resultFrame = document.getElementById('preRequest');
-
-            this.variables = {};
-
-            window.preRequestComplete = (updatedModel, error) => {
-                if (error) {
-                    reject(error);
-                } else {
-                    resolve(updatedModel);
-                }
-            };
-
-            window.temp_variable = this.variables;
-            window.currentRequest = model;
-            window.consoleOutput = consoleOutput;
-            resultFrame.srcdoc = `<script>
+      window.temp_variable = this.variables;
+      window.currentRequest = model;
+      window.consoleOutput = consoleOutput;
+      resultFrame.srcdoc = `<script>
                 var oldLog = console.log;
                 console.log = function(message) {
                     if(window.parent.consoleOutput)
@@ -179,23 +176,23 @@ class APIClient {
                     window.parent.preRequestComplete(null, error);
                 }
             </script>`;
-        });
-    }
+    });
+  }
 
-    executePostRequestScript(script, response, consoleOutput) {
-        return new Promise((resolve, reject) => {
-            let resultFrame = document.getElementById('postRequest');
-            window.response = response;
-            window.temp_variable = this.variables;
-            window.postRequestComplete = (response, error) => {
-                if (error) {
-                    reject(error);
-                } else {
-                    resolve(response);
-                }
-            };
-            window.consoleOutput = consoleOutput;
-            resultFrame.srcdoc = `<script>
+  executePostRequestScript(script, response, consoleOutput) {
+    return new Promise((resolve, reject) => {
+      let resultFrame = document.getElementById('postRequest');
+      window.response = response;
+      window.temp_variable = this.variables;
+      window.postRequestComplete = (response, error) => {
+        if (error) {
+          reject(error);
+        } else {
+          resolve(response);
+        }
+      };
+      window.consoleOutput = consoleOutput;
+      resultFrame.srcdoc = `<script>
             var oldLog = console.log;
             console.log = function(message) {
                 if(window.parent.consoleOutput)
@@ -212,8 +209,8 @@ class APIClient {
                 window.parent.postRequestComplete(window.response, error.toString());
             }
         </script>`;
-        });
-    }
+    });
+  }
 }
 
 export default APIClient;
diff --git a/ApiTestManager/src/APIScenario.js b/ApiTestManager/src/APIScenario.js
index a820493..7080b44 100644
--- a/ApiTestManager/src/APIScenario.js
+++ b/ApiTestManager/src/APIScenario.js
@@ -1,368 +1,367 @@
-// require.config({paths: {'vs': '/plugins/vs'}});
 import * as monaco from 'monaco-editor';
-import APIScenarioExecutor from "./APIScenarioExecutor";
-import Drawflow from "drawflow";
+import APIScenarioExecutor from './APIScenarioExecutor';
+import Drawflow from 'drawflow';
 
 class APIScenario {
 
-    constructor(apiTester, contextPath) {
-        this.scenarioList = [];
-        this.currentScenario = null;
-        this.apiTester = apiTester;
-        this.contextPath = contextPath || '/';
-    }
+  constructor(apiTester, contextPath) {
+    this.scenarioList = [];
+    this.currentScenario = null;
+    this.apiTester = apiTester;
+    this.contextPath = contextPath || '/';
+  }
 
-    getAPIScenarioListURL() {
-        return this.contextPath + 'mgmt/api_scenario/list.do';
-    }
+  getAPIScenarioListURL() {
+    return this.contextPath + 'mgmt/api_scenario/list.do';
+  }
 
-    getAPIScenarioCreateURL() {
-        return this.contextPath + 'mgmt/api_scenario/create.do';
-    }
+  getAPIScenarioCreateURL() {
+    return this.contextPath + 'mgmt/api_scenario/create.do';
+  }
 
-    getAPIScenarioUpdateURL() {
-        return this.contextPath + 'mgmt/api_scenario/update.do';
-    }
+  getAPIScenarioUpdateURL() {
+    return this.contextPath + 'mgmt/api_scenario/update.do';
+  }
 
-    getAPIScenarioDeleteURL() {
-        return this.contextPath + 'mgmt/api_scenario/delete.do';
-    }
+  getAPIScenarioDeleteURL() {
+    return this.contextPath + 'mgmt/api_scenario/delete.do';
+  }
 
-    init() {
-        this.loadScenarioList();
-        this.outputEditor = monaco.editor.create(document.getElementById('output'), {
-            value: '',
-            automaticLayout: true
-        });
-        this.bindEvents();
+  init() {
+    this.loadScenarioList();
+    this.outputEditor = monaco.editor.create(document.getElementById('output'), {
+      value: '',
+      automaticLayout: true
+    });
+    this.bindEvents();
 
-        let id = document.getElementById('drawflow');
-        this.editor = new Drawflow(id);
-        this.editor.reroute = true;
-        this.editor.reroute_fix_curvature = true;
-        this.editor.force_first_input = true;
-        this.editor.start();
-        // this.editor.on('contextmenu', (event) => {
-        //     let node = this.editor.getNodeFromId(event.target.id);
-        // })
+    let id = document.getElementById('drawflow');
+    this.editor = new Drawflow(id);
+    this.editor.reroute = true;
+    this.editor.reroute_fix_curvature = true;
+    this.editor.force_first_input = true;
+    this.editor.start();
+    // this.editor.on('contextmenu', (event) => {
+    //     let node = this.editor.getNodeFromId(event.target.id);
+    // })
 
-        this.showOutput = true;
-    }
+    this.showOutput = true;
+  }
 
-    loadScenarioList(callback) {
-        const me = this;
-        this.currentAjaxRequest = $.ajax({
-            url: this.getAPIScenarioListURL(),
-            type: 'GET',
-            contentType: 'application/json',
-            success: function (data) {
-                me.scenarioList = data;
-                let drawflowData = {drawflow: {Home: {data: {}}}};
-                data.forEach((scenario) => {
-                    let scenarioData = null;
-                    try {
-                        scenarioData = JSON.parse(scenario.scenario)
-                    } catch (e) {
-                        scenarioData = {};
-                    }
-                    drawflowData.drawflow[scenario.id] = {data: scenarioData};
-                });
-
-                me.editor.import(drawflowData);
-                me.editor.changeModule('Home');
-            },
-            error: function (response, textStatus, errorThrown) {
-                me.hideLoadingOverlay();
-                $('.toast-body').text(response.responseJSON.error);
-                $('.toast').toast('show');
-            },
-            complete: function () {
-                me.renderScenarioList();
-                if (callback) {
-                    callback();
-                }
-                me.hideLoadingOverlay();
-            }
-        });
-    }
-
-    getScenarioList() {
-        return this.scenarioList;
-    }
-
-    openScenario(event) {
-        event.preventDefault();
-        let scenarioId = $(event.target).closest('li').data('id');
-        this.openScenarioById(scenarioId);
-    }
-
-    openScenarioById(scenarioId) {
-        document.querySelectorAll(".api-scenario-list li").forEach((node) => {
-            node.classList.remove('selected');
+  loadScenarioList(callback) {
+    const me = this;
+    this.currentAjaxRequest = $.ajax({
+      url: this.getAPIScenarioListURL(),
+      type: 'GET',
+      contentType: 'application/json',
+      success: function(data) {
+        me.scenarioList = data;
+        let drawflowData = {drawflow: {Home: {data: {}}}};
+        data.forEach((scenario) => {
+          let scenarioData = null;
+          try {
+            scenarioData = JSON.parse(scenario.scenario);
+          } catch (e) {
+            scenarioData = {};
+          }
+          drawflowData.drawflow[scenario.id] = {data: scenarioData};
         });
 
-        //find li by data-id and add class selected
-        document.querySelector(`.api-scenario-list li[data-id="${scenarioId}"]`).classList.add('selected');
+        me.editor.import(drawflowData);
+        me.editor.changeModule('Home');
+      },
+      error: function(response, textStatus, errorThrown) {
+        me.hideLoadingOverlay();
+        $('.toast-body').text(response.responseJSON.error);
+        $('.toast').toast('show');
+      },
+      complete: function() {
+        me.renderScenarioList();
+        if (callback) {
+          callback();
+        }
+        me.hideLoadingOverlay();
+      }
+    });
+  }
 
-        this.editor.changeModule(scenarioId);
-        this.currentScenario = scenarioId;
-    }
+  getScenarioList() {
+    return this.scenarioList;
+  }
 
-    getScenario(scenarioId) {
-        return this.getScenarioList().find((scenario) => scenario.id === scenarioId);
-    }
+  openScenario(event) {
+    event.preventDefault();
+    let scenarioId = $(event.target).closest('li').data('id');
+    this.openScenarioById(scenarioId);
+  }
 
-    showLoadingOverlay() {
-        $("#loading-overlay").show();
-    }
+  openScenarioById(scenarioId) {
+    document.querySelectorAll('.api-scenario-list li').forEach((node) => {
+      node.classList.remove('selected');
+    });
 
-    hideLoadingOverlay() {
-        $("#loading-overlay").hide();
-    }
+    //find li by data-id and add class selected
+    document.querySelector(`.api-scenario-list li[data-id="${scenarioId}"]`).classList.add('selected');
 
-    showNewScenarioModal() {
-        $('#new_scenario_modal').find('input').val('');
-        $('#new_scenario_modal').modal('show');
-    }
+    this.editor.changeModule(scenarioId);
+    this.currentScenario = scenarioId;
+  }
 
-    createScenario() {
-        const name = $('#new_scenario_name').val();
-        const me = this;
-        me.showLoadingOverlay();
-        this.currentAjaxRequest = $.ajax({
-            url: this.getAPIScenarioCreateURL(),
-            type: 'POST',
-            contentType: 'application/json',
-            data: JSON.stringify({name: name, scenario: "{}", description: ""}),
-            success: function (data) {
-                me.loadScenarioList(() => {
-                    me.openScenarioById(data.id);
-                    let start = `
+  getScenario(scenarioId) {
+    return this.getScenarioList().find((scenario) => scenario.id === scenarioId);
+  }
+
+  showLoadingOverlay() {
+    $('#loading-overlay').show();
+  }
+
+  hideLoadingOverlay() {
+    $('#loading-overlay').hide();
+  }
+
+  showNewScenarioModal() {
+    $('#new_scenario_modal').find('input').val('');
+    $('#new_scenario_modal').modal('show');
+  }
+
+  createScenario() {
+    const name = $('#new_scenario_name').val();
+    const me = this;
+    me.showLoadingOverlay();
+    this.currentAjaxRequest = $.ajax({
+      url: this.getAPIScenarioCreateURL(),
+      type: 'POST',
+      contentType: 'application/json',
+      data: JSON.stringify({name: name, scenario: '{}', description: ''}),
+      success: function(data) {
+        me.loadScenarioList(() => {
+          me.openScenarioById(data.id);
+          let start = `
                         <div>
                             <div><i class="fas fa-play"></i> Start </div>
                         </div>
                     `;
-                    me.editor.addNode('Start', 0, 1, 100, 100, 'start', {}, start);
-                    me.saveScenario();
-                });
-            },
-            error: function (response, textStatus, errorThrown) {
-                me.hideLoadingOverlay();
-                $('.toast-body').text(response.responseJSON.error);
-                $('.toast').toast('show');
-            },
-            complete: function () {
-                me.hideLoadingOverlay();
-                $('#new_scenario_modal').modal('hide');
-            }
+          me.editor.addNode('Start', 0, 1, 100, 100, 'start', {}, start);
+          me.saveScenario();
         });
-    }
+      },
+      error: function(response, textStatus, errorThrown) {
+        me.hideLoadingOverlay();
+        $('.toast-body').text(response.responseJSON.error);
+        $('.toast').toast('show');
+      },
+      complete: function() {
+        me.hideLoadingOverlay();
+        $('#new_scenario_modal').modal('hide');
+      }
+    });
+  }
 
-    saveScenario() {
-        if (this.currentScenario !== null) {
-            let data = this.editor.export();
-            console.log(data.drawflow[this.currentScenario].data);
-            let updatedScenario = this.getScenario(this.currentScenario);
-            updatedScenario.scenario = JSON.stringify(data.drawflow[this.currentScenario].data);
+  saveScenario() {
+    if (this.currentScenario !== null) {
+      let data = this.editor.export();
+      console.log(data.drawflow[this.currentScenario].data);
+      let updatedScenario = this.getScenario(this.currentScenario);
+      updatedScenario.scenario = JSON.stringify(data.drawflow[this.currentScenario].data);
 
-            const me = this;
-            me.showLoadingOverlay();
-            this.currentAjaxRequest = $.ajax({
-                url: this.getAPIScenarioUpdateURL(),
-                type: 'POST',
-                contentType: 'application/json',
-                data: JSON.stringify(updatedScenario),
-                error: function (response, textStatus, errorThrown) {
-                    me.hideLoadingOverlay();
-                    $('.toast-body').text(response.responseJSON.error);
-                    $('.toast').toast('show');
-                },
-                complete: function () {
-                    me.hideLoadingOverlay();
-                    $('.toast-body').text('저장되었습니다.');
-                    $('.toast').toast('show');
-                }
-            });
+      const me = this;
+      me.showLoadingOverlay();
+      this.currentAjaxRequest = $.ajax({
+        url: this.getAPIScenarioUpdateURL(),
+        type: 'POST',
+        contentType: 'application/json',
+        data: JSON.stringify(updatedScenario),
+        error: function(response, textStatus, errorThrown) {
+          me.hideLoadingOverlay();
+          $('.toast-body').text(response.responseJSON.error);
+          $('.toast').toast('show');
+        },
+        complete: function() {
+          me.hideLoadingOverlay();
+          $('.toast-body').text('저장되었습니다.');
+          $('.toast').toast('show');
         }
+      });
     }
+  }
 
-    showDeleteModal(event) {
-        const id = $(event.currentTarget).closest('li').data('id');
-        $('#confirm_delete_scenario_modal').find('.confirm_delete_scenario').data('id', id);
-        $('#confirm_delete_scenario_modal').modal('show');
-    }
+  showDeleteModal(event) {
+    const id = $(event.currentTarget).closest('li').data('id');
+    $('#confirm_delete_scenario_modal').find('.confirm_delete_scenario').data('id', id);
+    $('#confirm_delete_scenario_modal').modal('show');
+  }
 
-    removeScenario(event) {
-        const id = $(event.currentTarget).data('id');
-        const me = this;
-        me.showLoadingOverlay();
-        this.currentAjaxRequest = $.ajax({
-            url: this.getAPIScenarioDeleteURL(),
-            type: 'POST',
-            contentType: 'application/json',
-            data: JSON.stringify({id: id}),
-            error: function (response, textStatus, errorThrown) {
-                me.hideLoadingOverlay();
-                $('.toast-body').text(response.responseJSON.error);
-                $('.toast').toast('show');
-            },
-            complete: function () {
-                me.hideLoadingOverlay();
-                $('#confirm_delete_scenario_modal').modal('hide');
-                $('.toast-body').text('삭제되었습니다.');
-                $('.toast').toast('show');
-                me.editor.changeModule('Home');
-                me.loadScenarioList(() => {
-                    if (me.getScenarioList().length > 0)
-                        me.openScenarioById(me.getScenarioList()[0].id);
+  removeScenario(event) {
+    const id = $(event.currentTarget).data('id');
+    const me = this;
+    me.showLoadingOverlay();
+    this.currentAjaxRequest = $.ajax({
+      url: this.getAPIScenarioDeleteURL(),
+      type: 'POST',
+      contentType: 'application/json',
+      data: JSON.stringify({id: id}),
+      error: function(response, textStatus, errorThrown) {
+        me.hideLoadingOverlay();
+        $('.toast-body').text(response.responseJSON.error);
+        $('.toast').toast('show');
+      },
+      complete: function() {
+        me.hideLoadingOverlay();
+        $('#confirm_delete_scenario_modal').modal('hide');
+        $('.toast-body').text('삭제되었습니다.');
+        $('.toast').toast('show');
+        me.editor.changeModule('Home');
+        me.loadScenarioList(() => {
+          if (me.getScenarioList().length > 0) {
+            me.openScenarioById(me.getScenarioList()[0].id);
+          }
 
-                });
-            }
         });
+      }
+    });
+  }
+
+  toggleOutput() {
+    // Define your selectors as constants for easy changes and better readability
+    const scenarioContentSelector = '.api-scenario-content';
+    const scenarioOutputSelector = '.api-scenario-output';
+    const scenarioOutputBodySelector = '.api-scenario-output-body';
+    const drawflowSelector = '#drawflow';
+    const scenarioEditorSelector = '.scenario_editor';
+
+    // Ensure parentHeight is a number
+    let parentHeight = parseInt($(scenarioContentSelector).css('height'), 10);
+
+    // Toggle the showOutput state
+    this.showOutput = !this.showOutput;
+
+    if (!this.showOutput) {
+      $(scenarioOutputSelector).css('flex', '0');
+      $(scenarioOutputBodySelector).hide();
+
+      let editorHeight = $(scenarioEditorSelector).css('height');
+      $(drawflowSelector).css('height', editorHeight);
+      $(scenarioOutputSelector).removeClass('halfHeight');
+      $(drawflowSelector).removeClass('halfHeight');
+    } else {
+      $(scenarioOutputSelector).css('flex', '1');
+      $(scenarioOutputSelector).addClass('halfHeight');
+      $(scenarioOutputBodySelector).show();
+      $(drawflowSelector).addClass('halfHeight');
+      $(drawflowSelector).css('height', parentHeight / 2);
     }
 
-    toggleOutput() {
-        // Define your selectors as constants for easy changes and better readability
-        const scenarioContentSelector = '.api-scenario-content';
-        const scenarioOutputSelector = '.api-scenario-output';
-        const scenarioOutputBodySelector = '.api-scenario-output-body';
-        const drawflowSelector = '#drawflow';
-        const scenarioEditorSelector = '.scenario_editor';
+    // Adjustments for when parentHeight isn't a valid number
+    if (isNaN(parentHeight)) {
+      console.error('parentHeight is not a number. Check the height of the api-scenario-content element.');
+      // Fallback or additional error handling can be placed here
+    }
+  }
 
-        // Ensure parentHeight is a number
-        let parentHeight = parseInt($(scenarioContentSelector).css('height'), 10);
+  resizeEditor() {
+    //FIXME: 창 크기 변경시 자동으로 editor 크기가 조정되지 않아서, 0으로 강제 변경후 다시 layout() 호출
+    this.outputEditor.layout({
+      width: 0
+    });
+    this.outputEditor.layout({});
 
-        // Toggle the showOutput state
-        this.showOutput = !this.showOutput;
+  }
 
-        if (!this.showOutput) {
-            $(scenarioOutputSelector).css('flex', '0');
-            $(scenarioOutputBodySelector).hide();
+  runScript() {
+    console.log(this.editor.export().drawflow);
+    let graph = APIScenarioExecutor.extractGraphFromStart(this.editor.export().drawflow[this.currentScenario].data);
+    this.executor = new APIScenarioExecutor(graph, this.apiTester, this.outputEditor);
+  }
 
-            let editorHeight = $(scenarioEditorSelector).css('height');
-            $(drawflowSelector).css('height', editorHeight);
-            $(scenarioOutputSelector).removeClass('halfHeight');
-            $(drawflowSelector).removeClass('halfHeight');
-        } else {
-            $(scenarioOutputSelector).css('flex', '1');
-            $(scenarioOutputSelector).addClass('halfHeight');
-            $(scenarioOutputBodySelector).show();
-            $(drawflowSelector).addClass('halfHeight');
-            $(drawflowSelector).css('height', parentHeight / 2);
-        }
+  runScenarioAll() {
+    if (!this.executor) {
+      this.runScript();
+    }
+    if (!this.executor.isDone) {
+      this.executor.executeAll();
+    } else {
+      this.executor.reset();
+    }
+  }
 
-        // Adjustments for when parentHeight isn't a valid number
-        if (isNaN(parentHeight)) {
-            console.error('parentHeight is not a number. Check the height of the api-scenario-content element.');
-            // Fallback or additional error handling can be placed here
-        }
+  runScenarioStep() {
+    if (!this.executor) {
+      this.runScript();
+    }
+    if (!this.executor.isDone) {
+      this.executor.executeCurrentNode();
+      this.executor.moveToNextNode();
+    } else {
+      this.executor.reset();
     }
 
+  }
 
-    resizeEditor() {
-        //FIXME: 창 크기 변경시 자동으로 editor 크기가 조정되지 않아서, 0으로 강제 변경후 다시 layout() 호출
-        this.outputEditor.layout({
-            width: 0
-        });
-        this.outputEditor.layout({});
+  resetScenario() {
 
+  }
+
+  pauseScenario() {
+
+  }
+
+  stopScenario() {
+    if (this.executor) {
+      this.executor.reset();
     }
+    this.outputEditor.setValue('');
+  }
 
-    runScript() {
-        console.log(this.editor.export().drawflow);
-        let graph = APIScenarioExecutor.extractGraphFromStart(this.editor.export().drawflow[this.currentScenario].data);
-        this.executor = new APIScenarioExecutor(graph, this.apiTester, this.outputEditor);
-    }
-
-    runScenarioAll() {
-        if (!this.executor) {
-            this.runScript();
-        }
-        if (!this.executor.isDone) {
-            this.executor.executeAll();
-        } else {
-            this.executor.reset();
-        }
-    }
-
-
-    runScenarioStep() {
-        if (!this.executor) {
-            this.runScript();
-        }
-        if (!this.executor.isDone) {
-            this.executor.executeCurrentNode();
-            this.executor.moveToNextNode();
-        } else {
-            this.executor.reset();
-        }
-
-    }
-
-    resetScenario() {
-
-    }
-
-    pauseScenario() {
-
-    }
-
-    stopScenario() {
-        if (this.executor)
-            this.executor.reset();
-        this.outputEditor.setValue('');
-    }
-
-    addStart() {
-        let start = `
+  addStart() {
+    let start = `
             <div>
                 <div><i class="fas fa-play"></i> Start </div>
             </div>
         `;
-        this.editor.addNode('Start', 0, 1, 100, 100, 'start', {}, start);
+    this.editor.addNode('Start', 0, 1, 100, 100, 'start', {}, start);
+  }
+
+  bindEvents() {
+    const events = [
+      {type: 'click', selector: '.open_scenario', action: this.openScenario.bind(this)},
+      {type: 'click', selector: '.export', action: this.runScript.bind(this)},
+      {type: 'click', selector: '.toggle_output', action: this.toggleOutput.bind(this)},
+      {type: 'click', selector: '.run_scenario_step', action: this.runScenarioStep.bind(this)},
+      {type: 'click', selector: '.run_scenario_all', action: this.runScenarioAll.bind(this)},
+      {type: 'click', selector: '.reset_scenario', action: this.resetScenario.bind(this)},
+      {type: 'click', selector: '.pause_scenario', action: this.pauseScenario.bind(this)},
+      {type: 'click', selector: '.stop_scenario', action: this.stopScenario.bind(this)},
+      {type: 'click', selector: '#new_scenario', action: this.showNewScenarioModal.bind(this)},
+      {type: 'click', selector: '.create_scenario', action: this.createScenario.bind(this)},
+      {type: 'click', selector: '.save_scenario', action: this.saveScenario.bind(this)},
+      // {type: 'click', selector: '.add_start', action: this.addStart.bind(this)},
+      {type: 'click', selector: '.delete_scenario', action: this.showDeleteModal.bind(this)},
+      {type: 'click', selector: '.confirm_delete_scenario', action: this.removeScenario.bind(this)},
+      {type: 'click', selector: '.stop_scenario', action: this.stopScenario.bind(this)}
+    ];
+
+    for (let event of events) {
+      $(document).on(event.type, event.selector, event.action);
     }
 
-    bindEvents() {
-        const events = [
-            {type: 'click', selector: '.open_scenario', action: this.openScenario.bind(this)},
-            {type: 'click', selector: '.export', action: this.runScript.bind(this)},
-            {type: 'click', selector: '.toggle_output', action: this.toggleOutput.bind(this)},
-            {type: 'click', selector: '.run_scenario_step', action: this.runScenarioStep.bind(this)},
-            {type: 'click', selector: '.run_scenario_all', action: this.runScenarioAll.bind(this)},
-            {type: 'click', selector: '.reset_scenario', action: this.resetScenario.bind(this)},
-            {type: 'click', selector: '.pause_scenario', action: this.pauseScenario.bind(this)},
-            {type: 'click', selector: '.stop_scenario', action: this.stopScenario.bind(this)},
-            {type: 'click', selector: '#new_scenario', action: this.showNewScenarioModal.bind(this)},
-            {type: 'click', selector: '.create_scenario', action: this.createScenario.bind(this)},
-            {type: 'click', selector: '.save_scenario', action: this.saveScenario.bind(this)},
-            // {type: 'click', selector: '.add_start', action: this.addStart.bind(this)},
-            {type: 'click', selector: '.delete_scenario', action: this.showDeleteModal.bind(this)},
-            {type: 'click', selector: '.confirm_delete_scenario', action: this.removeScenario.bind(this)},
-            {type: 'click', selector: '.stop_scenario', action: this.stopScenario.bind(this)}
-        ];
+    window.addEventListener('resize', this.resizeEditor.bind(this));
+    var me = this;
 
-        for (let event of events) {
-            $(document).on(event.type, event.selector, event.action);
-        }
+    $('#drawflow').droppable({
+      drop: function(event, ui) {
+        const x = ui.offset.left - $(this).offset().left;
+        const y = ui.offset.top - $(this).offset().top;
 
-        window.addEventListener('resize', this.resizeEditor.bind(this));
-        var me = this;
+        const dataset = ui.draggable[0].dataset;
+        var node = `<div><div class="title-box">API</div><div class="box">${dataset.name}</div></div>`;
 
-        $('#drawflow').droppable({
-            drop: function (event, ui) {
-                const x = ui.offset.left - $(this).offset().left;
-                const y = ui.offset.top - $(this).offset().top;
+        me.editor.addNode(dataset.name, 1, 1, x, y, dataset.nodeType, dataset, node);
+      }
+    });
+  }
 
-                const dataset = ui.draggable[0].dataset;
-                var node = `<div><div class="title-box">API</div><div class="box">${dataset.name}</div></div>`;
-
-                me.editor.addNode(dataset.name, 1, 1, x, y, dataset.nodeType, dataset, node);
-            }
-        });
-    }
-
-    scenarioListTemplate(scenario) {
-        return `
+  scenarioListTemplate(scenario) {
+    return `
         <li class="d-flex justify-content-between " data-id="${scenario.id}">
             <a href="#" class="d-inline-flex align-items-center rounded open_scenario">${scenario.name}</a>
             <div class="d-flex justify-content-between">
@@ -371,19 +370,20 @@ class APIScenario {
             </div>
         </li>
         `;
-    }
+  }
 
-    renderScenarioList() {
-        let scenarioList = this.getScenarioList();
-        let scenarioListHtml = scenarioList.map((scenario) => this.scenarioListTemplate(scenario)).join('');
-        $('.api-scenario-list').html(scenarioListHtml);
-        let nodes = document.querySelectorAll(".api-scenario-list li");
-        nodes.forEach((node) => {
-            if ($(node).data('id') === this.currentScenario) {
-                node.classList.add('selected');
-            }
-        });
-    }
+  renderScenarioList() {
+    let scenarioList = this.getScenarioList();
+    let scenarioListHtml = scenarioList.map((scenario) => this.scenarioListTemplate(scenario)).join('');
+    $('.api-scenario-list').html(scenarioListHtml);
+
+    let nodes = document.querySelectorAll('.api-scenario-list li');
+    nodes.forEach((node) => {
+      if ($(node).data('id') === this.currentScenario) {
+        node.classList.add('selected');
+      }
+    });
+  }
 }
 
 export default APIScenario;
diff --git a/ApiTestManager/src/APIScenarioExecutor.js b/ApiTestManager/src/APIScenarioExecutor.js
index dd23f8c..711ac70 100644
--- a/ApiTestManager/src/APIScenarioExecutor.js
+++ b/ApiTestManager/src/APIScenarioExecutor.js
@@ -2,232 +2,227 @@ import * as monaco from 'monaco-editor';
 import APIClient from './APIClient';
 
 class APIScenarioExecutor {
-    constructor(graph, apiTester, outputEditor) {
-        this.graph = graph; // The graph data
-        this.apiClient = new APIClient();
-        this.apiTester = apiTester;
-        this.outputEditor = outputEditor;
-        this.reset();
+  constructor(graph, apiTester, outputEditor) {
+    this.graph = graph; // The graph data
+    this.apiClient = new APIClient();
+    this.apiTester = apiTester;
+    this.outputEditor = outputEditor;
+    this.reset();
+  }
+
+  // Helper method to find the start node ID
+  findStartNodeId() {
+    for (let nodeId in this.graph) {
+      if (this.graph[nodeId].class === 'start') {
+        return nodeId;
+      }
     }
+    return null; // Return null if no start node is found
+  }
 
-    // Helper method to find the start node ID
-    findStartNodeId() {
-        for (let nodeId in this.graph) {
-            if (this.graph[nodeId].class === 'start') {
-                return nodeId;
-            }
-        }
-        return null; // Return null if no start node is found
-    }
+  reset() {
+    this.currentNodeId = this.findStartNodeId(); // Initialize at the 'start' node
+    this.visitedNodes = new Set(); // Keep track of visited nodes
+    this.isRunning = false;
+    this.isDone = false;
 
-    reset() {
-        this.currentNodeId = this.findStartNodeId(); // Initialize at the 'start' node
-        this.visitedNodes = new Set(); // Keep track of visited nodes
-        this.isRunning = false;
-        this.isDone = false;
+    let allNodes = document.querySelector('#drawflow').querySelectorAll('.drawflow-node');
+    allNodes.forEach(node => {
+      node.classList.remove('current-execution');
+      node.classList.remove('result-success');
+      node.classList.remove('result-error');
+      node.classList.remove('result-abort');
+    });
+  }
 
-        let allNodes = document.querySelector('#drawflow').querySelectorAll('.drawflow-node');
-        allNodes.forEach(node => {
-            node.classList.remove('current-execution');
-            node.classList.remove('result-success');
-            node.classList.remove('result-error');
-            node.classList.remove('result-abort');
-        });
-    }
+  executeCurrentNode() {
+    return new Promise((resolve, reject) => {
+      console.log(this.currentNodeId);
 
-    executeCurrentNode() {
-        return new Promise((resolve, reject) => {
-            console.log(this.currentNodeId)
+      let allNodes = document.querySelector('#drawflow').querySelectorAll('.drawflow-node');
+      allNodes.forEach(node => {
+        node.classList.remove('current-execution');
+      });
 
-            let allNodes = document.querySelector('#drawflow').querySelectorAll('.drawflow-node');
-            allNodes.forEach(node => {
-                node.classList.remove('current-execution');
-            });
+      if (!this.currentNodeId) {
+        console.log('No current node to execute.');
+        return;
+      }
 
-            if (!this.currentNodeId) {
-                console.log('No current node to execute.');
-                return;
-            }
+      const currentNode = this.graph[this.currentNodeId];
 
-            const currentNode = this.graph[this.currentNodeId];
+      if (currentNode) {
+        this.isRunning = true;
+        this.visitedNodes.add(this.currentNodeId); // Mark this node as visited
 
-            if (currentNode) {
-                this.isRunning = true;
-                this.visitedNodes.add(this.currentNodeId); // Mark this node as visited
-
-                let nodeElement = document.querySelector('#drawflow').querySelector(`.drawflow-node[id="node-${this.currentNodeId}"]`);
-                if (nodeElement) {
-                    nodeElement.classList.add('current-execution');
-                } else {
-                    console.error('Node with ID ' + this.currentNodeId + ' not found');
-                }
-
-                if (currentNode.class === 'api') {
-                    let model = JSON.parse(JSON.stringify(this.apiTester.getApiRequestModel(currentNode.data.id)));
-                    model.responseModel = {};
-                    this.appendLog(`===============================================================\nExecuting API [${model.name}]`);
-                    this.apiClient.sendAPIRequest(model, this.logHttpRequest.bind(this))
-                        .then(response => {
-                            this.isRunning = false;
-                            this.logHttpResponse(response);
-                            if (response.status === 200 || response.status === 201) {
-                                nodeElement.classList.add('result-success');
-                            } else {
-                                nodeElement.classList.add('result-error');
-                            }
-                            resolve();
-                        })
-                        .catch(error => {
-                            nodeElement.classList.add('result-abort');
-                            $('.toast-body').text(error.message);
-                            $('.toast').toast('show');
-                            this.appendLog(error.message);
-                            reject(error);
-                        });
-                    console.log(`===============================================================\nExecuting API request for node: ${currentNode.id} - ${currentNode.name}`);
-                } else if (currentNode.class === 'start') {
-                    this.appendLog('Starting API scenario\n');
-                    nodeElement.classList.add('result-success');
-                    resolve();
-                } else {
-                    console.log(`Executing script for node: ${currentNode.id} - ${currentNode.name}`);
-                    resolve();
-                }
-
-            }
-        });
-
-    }
-
-    appendLog(text) {
-        var range = new monaco.Range(this.outputEditor.getModel().getLineCount(), 1, this.outputEditor.getModel().getLineCount(), 1);
-        var id = {major: 1, minor: 1};
-        var op = {identifier: id, range: range, text: text + '\n\n', forceMoveMarkers: true};
-        this.outputEditor.executeEdits("my-source", [op]);
-    }
-
-    logHttpRequest(model) {
-        console.log(model);
-        let log = `[API Request]\n${model.method} ${model.path} HTTP/1.1\n[Request Headers]\n${this.parseRequestHeaders(model.headers)}\n[Request Body]\n${model.requestBody}`;
-        this.appendLog(log);
-    }
-
-    logHttpResponse(response) {
-        let log = `[Response]\nHTTP/1.1 ${response.status}\n[Response Headers]\n${this.parseHeaders(response.headers)}\n[Response Body]\n${response.body}\n`;
-        this.appendLog(log);
-    }
-
-    parseRequestHeaders(headers) {
-        let parsedHeaders = '';
-        headers.forEach(header => {
-            if (header.enabled) {
-                parsedHeaders += `${header.key}: ${header.value}\n`;
-            }
-        });
-
-
-        return parsedHeaders;
-    }
-
-    parseHeaders(headers) {
-        //convert object to string with \n separation
-        //sort header by key
-
-        let parsedHeaders = '';
-        const sortedKeys = Object.keys(headers).sort(); // Sorting the keys alphabetically
-        sortedKeys.forEach(key => {
-            parsedHeaders += `${key}: ${headers[key]}\n`;
-        });
-        return parsedHeaders;
-    }
-
-
-    // Method to move to the next node
-    moveToNextNode() {
-        const currentNode = this.graph[this.currentNodeId];
-        console.log(currentNode);
-
-        if (currentNode && currentNode.connections.length > 0) {
-            // Find the next unvisited node
-            const nextNode = currentNode.connections.find(nodeId => !this.visitedNodes.has(nodeId));
-            if (nextNode) {
-                this.currentNodeId = nextNode;
-            } else {
-                console.log('No more unvisited connections to move to.');
-                this.currentNodeId = null; // No more nodes to visit
-            }
+        let nodeElement = document.querySelector('#drawflow').querySelector(`.drawflow-node[id="node-${this.currentNodeId}"]`);
+        if (nodeElement) {
+          nodeElement.classList.add('current-execution');
         } else {
-            console.log('Current node has no connections or does not exist.');
-            this.currentNodeId = null; // No more nodes to visit
-            this.isDone = true;
+          console.error('Node with ID ' + this.currentNodeId + ' not found');
         }
-    }
 
-    async executeAll() {
-        while (this.currentNodeId) {
-            console.log(this.currentNodeId);
-            try {
-                await this.executeCurrentNode();
-            } catch (error) {
-                console.error('Error executing node: ', error);
-                // Handle error or break loop if necessary
+        if (currentNode.class === 'api') {
+          let model = JSON.parse(JSON.stringify(this.apiTester.getApiRequestModel(currentNode.data.id)));
+          model.responseModel = {};
+          this.appendLog(`===============================================================\nExecuting API [${model.name}]`);
+          this.apiClient.sendAPIRequest(model, this.logHttpRequest.bind(this)).then(response => {
+            this.isRunning = false;
+            this.logHttpResponse(response);
+            if (response.status === 200 || response.status === 201) {
+              nodeElement.classList.add('result-success');
+            } else {
+              nodeElement.classList.add('result-error');
             }
-            await this.moveToNextNodeWithDelay(250);
+            resolve();
+          }).catch(error => {
+            nodeElement.classList.add('result-abort');
+            $('.toast-body').text(error.message);
+            $('.toast').toast('show');
+            this.appendLog(error.message);
+            reject(error);
+          });
+          console.log(`===============================================================\nExecuting API request for node: ${currentNode.id} - ${currentNode.name}`);
+        } else if (currentNode.class === 'start') {
+          this.appendLog('Starting API scenario\n');
+          nodeElement.classList.add('result-success');
+          resolve();
+        } else {
+          console.log(`Executing script for node: ${currentNode.id} - ${currentNode.name}`);
+          resolve();
         }
-        console.log('Completed execution of all API nodes.');
-    }
+      }
+    });
 
-    moveToNextNodeWithDelay(delay) {
-        return new Promise(resolve => {
-            setTimeout(() => {
-                this.moveToNextNode();
-                resolve();
-            }, delay);
+  }
+
+  appendLog(text) {
+    var range = new monaco.Range(this.outputEditor.getModel().getLineCount(), 1, this.outputEditor.getModel().getLineCount(), 1);
+    var id = {major: 1, minor: 1};
+    var op = {identifier: id, range: range, text: text + '\n\n', forceMoveMarkers: true};
+    this.outputEditor.executeEdits('my-source', [op]);
+  }
+
+  logHttpRequest(model) {
+    console.log(model);
+    let log = `[API Request]\n${model.method} ${model.path} HTTP/1.1\n[Request Headers]\n${this.parseRequestHeaders(model.headers)}\n[Request Body]\n${model.requestBody}`;
+    this.appendLog(log);
+  }
+
+  logHttpResponse(response) {
+    let log = `[Response]\nHTTP/1.1 ${response.status}\n[Response Headers]\n${this.parseHeaders(response.headers)}\n[Response Body]\n${response.body}\n`;
+    this.appendLog(log);
+  }
+
+  parseRequestHeaders(headers) {
+    let parsedHeaders = '';
+    headers.forEach(header => {
+      if (header.enabled) {
+        parsedHeaders += `${header.key}: ${header.value}\n`;
+      }
+    });
+
+    return parsedHeaders;
+  }
+
+  parseHeaders(headers) {
+    //convert object to string with \n separation
+    //sort header by key
+
+    let parsedHeaders = '';
+    const sortedKeys = Object.keys(headers).sort(); // Sorting the keys alphabetically
+    sortedKeys.forEach(key => {
+      parsedHeaders += `${key}: ${headers[key]}\n`;
+    });
+    return parsedHeaders;
+  }
+
+  // Method to move to the next node
+  moveToNextNode() {
+    const currentNode = this.graph[this.currentNodeId];
+    console.log(currentNode);
+
+    if (currentNode && currentNode.connections.length > 0) {
+      // Find the next unvisited node
+      const nextNode = currentNode.connections.find(nodeId => !this.visitedNodes.has(nodeId));
+      if (nextNode) {
+        this.currentNodeId = nextNode;
+      } else {
+        console.log('No more unvisited connections to move to.');
+        this.currentNodeId = null; // No more nodes to visit
+      }
+    } else {
+      console.log('Current node has no connections or does not exist.');
+      this.currentNodeId = null; // No more nodes to visit
+      this.isDone = true;
+    }
+  }
+
+  async executeAll() {
+    while (this.currentNodeId) {
+      console.log(this.currentNodeId);
+      try {
+        await this.executeCurrentNode();
+      } catch (error) {
+        console.error('Error executing node: ', error);
+        // Handle error or break loop if necessary
+      }
+      await this.moveToNextNodeWithDelay(250);
+    }
+    console.log('Completed execution of all API nodes.');
+  }
+
+  moveToNextNodeWithDelay(delay) {
+    return new Promise(resolve => {
+      setTimeout(() => {
+        this.moveToNextNode();
+        resolve();
+      }, delay);
+    });
+  }
+
+  static extractGraphFromStart(graphData) {
+    console.log(graphData);
+    let graph = {};
+
+    // Helper function to recursively build the graph
+    function buildGraph(nodeId) {
+      const node = graphData[nodeId];
+      if (!node || graph[nodeId]) {
+        // If the node doesn't exist or has already been visited, stop the recursion
+        return;
+      }
+
+      // Initialize the node in the graph
+      graph[nodeId] = {
+        id: node.id,
+        name: node.name,
+        class: node.class,
+        data: node.data,
+        connections: []
+      };
+
+      // If the node has outputs, recursively add connected nodes
+      if (node.outputs) {
+        Object.values(node.outputs).forEach(output => {
+          output.connections.forEach(connection => {
+            graph[nodeId].connections.push(connection.node);
+            buildGraph(connection.node);  // Recurse
+          });
         });
+      }
     }
 
-    static extractGraphFromStart(graphData) {
-        console.log(graphData)
-        let graph = {};
-
-        // Helper function to recursively build the graph
-        function buildGraph(nodeId) {
-            const node = graphData[nodeId];
-            if (!node || graph[nodeId]) {
-                // If the node doesn't exist or has already been visited, stop the recursion
-                return;
-            }
-
-            // Initialize the node in the graph
-            graph[nodeId] = {
-                id: node.id,
-                name: node.name,
-                class: node.class,
-                data: node.data,
-                connections: []
-            };
-
-            // If the node has outputs, recursively add connected nodes
-            if (node.outputs) {
-                Object.values(node.outputs).forEach(output => {
-                    output.connections.forEach(connection => {
-                        graph[nodeId].connections.push(connection.node);
-                        buildGraph(connection.node);  // Recurse
-                    });
-                });
-            }
-        }
-
-        // Find the start node
-        for (let nodeId in graphData) {
-            if (graphData[nodeId].class === 'start') {
-                buildGraph(nodeId);  // Start building the graph from the 'start' node
-                break;  // Assuming there's only one start node
-            }
-        }
-
-        return graph;
+    // Find the start node
+    for (let nodeId in graphData) {
+      if (graphData[nodeId].class === 'start') {
+        buildGraph(nodeId);  // Start building the graph from the 'start' node
+        break;  // Assuming there's only one start node
+      }
     }
+
+    return graph;
+  }
 }
 
 export default APIScenarioExecutor;
diff --git a/ApiTestManager/src/APITester.js b/ApiTestManager/src/APITester.js
index 64bf661..95117c9 100644
--- a/ApiTestManager/src/APITester.js
+++ b/ApiTestManager/src/APITester.js
@@ -1,80 +1,74 @@
 import * as monaco from 'monaco-editor';
 import APIClient from './APIClient';
 import EditableInput from './components/EditableInput';
-import {createPopper} from "@popperjs/core/lib/popper-lite";
-import PropertyTable from "./components/PropertyTable";
-import VariableSnippet from "./components/VariableSnippet";
-
-
+import {createPopper} from '@popperjs/core/lib/popper-lite';
+import PropertyTable from './components/PropertyTable';
+import VariableSnippet from './components/VariableSnippet';
 
 class APITester {
 
-    constructor(contextPath) {
-        this.servers = [];
-        this.apiTabTitleTarget = '#apiRequestTabTitle';
-        this.apiTabContentTarget = '#apiRequestTabContent';
-        this.collectionTarget = '#side_menubar';
-        this.currentIndex = 0;
-        this.apiRequests = [];  //탭 열린 API
-        this.collections = [];  //API 컬렉션
-        this.requestEditors = [];  //API request body editor
-        this.responseEditors = []; //API response body editor
-        this.consoleEditors = []; //API console editor
-        this.preRequestEditors = [];
-        this.postRequestEditors = [];
+  constructor(contextPath) {
+    this.servers = [];
+    this.apiTabTitleTarget = '#apiRequestTabTitle';
+    this.apiTabContentTarget = '#apiRequestTabContent';
+    this.collectionTarget = '#side_menubar';
+    this.currentIndex = 0;
+    this.apiRequests = [];  //탭 열린 API
+    this.collections = [];  //API 컬렉션
+    this.requestEditors = [];  //API request body editor
+    this.responseEditors = []; //API response body editor
+    this.consoleEditors = []; //API console editor
+    this.preRequestEditors = [];
+    this.postRequestEditors = [];
 
-        this.apiClient = new APIClient();
-        this.popperContent = document.getElementById('popperContent');
-        this.popperInstance = null;
-        this.contextPath = contextPath || '/';
-    }
+    this.apiClient = new APIClient();
+    this.popperContent = document.getElementById('popperContent');
+    this.popperInstance = null;
+    this.contextPath = contextPath || '/';
+  }
 
-    getCollectionListURL(){
-        return this.contextPath + 'mgmt/collections/list.do';
-    }
+  getCollectionListURL() {
+    return this.contextPath + 'mgmt/collections/list.do';
+  }
 
-    getCollectionCreateURL(){
-        return this.contextPath + 'mgmt/collections/create.do';
-    }
+  getCollectionCreateURL() {
+    return this.contextPath + 'mgmt/collections/create.do';
+  }
 
-    getCollectionUpdateURL(){
-        return this.contextPath + 'mgmt/collections/update.do';
-    }
+  getCollectionUpdateURL() {
+    return this.contextPath + 'mgmt/collections/update.do';
+  }
 
-    getCollectionDeleteURL(){
-        return this.contextPath + 'mgmt/collections/delete.do';
-    }
+  getCollectionDeleteURL() {
+    return this.contextPath + 'mgmt/collections/delete.do';
+  }
 
-    getAPISaveURL(collectionId){
-        return this.contextPath + `mgmt/collections/${collectionId}/apis/save.do`;
-    }
+  getAPISaveURL(collectionId) {
+    return this.contextPath + `mgmt/collections/${collectionId}/apis/save.do`;
+  }
 
-    getAPIDeleteURL(collectionId){
-        return this.contextPath + `mgmt/collections/${collectionId}/apis/delete.do`;
-    }
+  getAPIDeleteURL(collectionId) {
+    return this.contextPath + `mgmt/collections/${collectionId}/apis/delete.do`;
+  }
 
+  renderServers(selectedServer) {
+    const optionsHtml = this.servers.map(server => `<option value="${server.id}" ${selectedServer === server.id ? 'selected' : ''}  data-path="${server.basePath}">${server.name}</option>`).join('');
 
-
-    renderServers(selectedServer) {
-        const optionsHtml = this.servers.map(server => `
-            <option value="${server.id}" ${selectedServer === server.id ? 'selected' : ''}  data-path="${server.basePath}">${server.name}</option>
-        `).join('');
-
-        return `<select class="form-select server" name="server" style="width: 180px; border-radius: 0;" required>
+    return `<select class="form-select server" name="server" style="width: 180px; border-radius: 0;" required>
                 <option value="">서버 선택</option>
                 ${optionsHtml}</select>`;
-    }
+  }
 
-    basePath(serverId) {
-        if (serverId === undefined || serverId === null || serverId === '') {
-            return '';
-        }
-        return this.servers.filter(server => server.id == serverId)[0].basePath; // == : 타입 비교 없이 값만 비교
+  basePath(serverId) {
+    if (serverId === undefined || serverId === null || serverId === '') {
+      return '';
     }
+    return this.servers.filter(server => server.id == serverId)[0].basePath; // == : 타입 비교 없이 값만 비교
+  }
 
-    apiRequestTemplate(apiRequest, index) {
-        return `
-        <div class="tab-pane fade mt-1 api_request" id="api_request_${apiRequest.id}">
+  apiRequestTemplate(apiRequest, index) {
+    return `
+        <div class="tab-pane fade mt-1 api_request" id="api_request_${apiRequest.id}" style="height: 100%;">
             <div><span class="collection_name">${apiRequest.collectionName}</span> &gt; <span class="api_name">${apiRequest.name}</span></div>
             <div class="d-flex api_request_info">
                 <div class="form-floating">
@@ -105,128 +99,136 @@ class APITester {
                 <button class="btn btn-primary send me-1">Send</button>
                 <button class="btn btn-primary save" data-index="${index}" style="height: 58px;">저장</button>
             </div>
-            <ul class="nav nav-tabs mt-1" role="tablist">
-                <li class="nav-item" role="presentation">
-                    <button class="nav-link btn_request_body_tab" data-bs-toggle="tab"
-                            type="button" role="tab" aria-controls="requestBody" data-bs-target="#requestBodyTab_${apiRequest.id}"
-                            aria-selected="false">Body
-                    </button>
-                </li>
-                <li class="nav-item" role="presentation">
-                    <button class="nav-link btn_request_param_tab" data-bs-toggle="tab" 
-                            type="button" role="tab" aria-controls="paramTab" data-bs-target="#requestParamTab_${apiRequest.id}"
-                            aria-selected="true">Param
-                    </button>
-                </li>
-                <li class="nav-item" role="presentation">
-                    <button class="nav-link btn_request_header_tab" data-bs-toggle="tab"
-                            type="button" role="tab" aria-controls="requestHeader" data-bs-target="#requestHeaderTab_${apiRequest.id}"
-                            aria-selected="false">Header
-                    </button>
-                </li>
-                <li class="nav-item" role="presentation">
-                    <button class="nav-link btn_prerequest_tab" data-bs-toggle="tab"
-                            type="button" role="tab" aria-controls="preScrit" data-bs-target="#preRequestTab_${apiRequest.id}"
-                            aria-selected="false">Pre-Request
-                    </button>
-                </li>
-                <li class="nav-item" role="presentation">
-                    <button class="nav-link btn_postrequest_tab" data-bs-toggle="tab"
-                            type="button" role="tab" aria-controls="postScript" data-bs-target="#postRequestTab_${apiRequest.id}"
-                            aria-selected="false">Post-Request
-                    </button>
-                </li>
-            </ul>
-            <div class="tab-content border-bottom" style="min-height: 300px;">
-                <div class="tab-pane fade show request_param_tab" role="tabpanel" id="requestParamTab_${apiRequest.id}" aria-labelledby="requestParams-tab">
-                     <div class="query_params">
-                     </div> 
-                </div>
-                <div class="tab-pane fade request_header_tab" role="tabpanel" id="requestHeaderTab_${apiRequest.id}"
-                     aria-labelledby="requestHeader-tab">
-                     <div class="request_headers">
-                     </div>
-                </div>
-                <div class="tab-pane fade request_body_tab" role="tabpanel" id="requestBodyTab_${apiRequest.id}"
-                     aria-labelledby="requestBody-tab">
-                    <select class="form-select mt-1 request_body_type" name="request_type">
-                        <option value="json">json</option>
-                        <option value="xml">xml</option>
-                        <option value="">text/plain</option>
-                    </select>
-                    <div class="request_body mt-1" style="width:100%;height:250px;border:1px solid grey;"></div>
-                </div>
-                <div class="tab-pane fade pre_script_tab" role="tabpanel" id="preRequestTab_${apiRequest.id}" aria-labelledby="preScrit-tab">
-                    <div class="d-flex flex-row">
-                        <div style="width:calc(100% - 200px);">
-                            <div class="pre-request mt-1" style="height:300px;border:1px solid grey;"></div>
-                        </div>
-                        <div style="width: 200px;">
-                            <div class="pre-request-variable">
+            <div class="api_request d-flex flex-column" style="height:100%;">
+              <div class="api_request_body">
+                <ul class="nav nav-tabs mt-1" role="tablist">
+                    <li class="nav-item" role="presentation">
+                        <button class="nav-link btn_request_body_tab" data-bs-toggle="tab"
+                                type="button" role="tab" aria-controls="requestBody" data-bs-target="#requestBodyTab_${apiRequest.id}"
+                                aria-selected="false">Body
+                        </button>
+                    </li>
+                    <li class="nav-item" role="presentation">
+                        <button class="nav-link btn_request_param_tab" data-bs-toggle="tab" 
+                                type="button" role="tab" aria-controls="paramTab" data-bs-target="#requestParamTab_${apiRequest.id}"
+                                aria-selected="true">Param
+                        </button>
+                    </li>
+                    <li class="nav-item" role="presentation">
+                        <button class="nav-link btn_request_header_tab" data-bs-toggle="tab"
+                                type="button" role="tab" aria-controls="requestHeader" data-bs-target="#requestHeaderTab_${apiRequest.id}"
+                                aria-selected="false">Header
+                        </button>
+                    </li>
+                    <li class="nav-item" role="presentation">
+                        <button class="nav-link btn_prerequest_tab" data-bs-toggle="tab"
+                                type="button" role="tab" aria-controls="preScrit" data-bs-target="#preRequestTab_${apiRequest.id}"
+                                aria-selected="false">Pre-Request
+                        </button>
+                    </li>
+                    <li class="nav-item" role="presentation">
+                        <button class="nav-link btn_postrequest_tab" data-bs-toggle="tab"
+                                type="button" role="tab" aria-controls="postScript" data-bs-target="#postRequestTab_${apiRequest.id}"
+                                aria-selected="false">Post-Request
+                        </button>
+                    </li>
+                </ul>
+                <div class="tab-content" style="height: 100%;">
+                    <div class="tab-pane fade show request_param_tab" role="tabpanel" id="requestParamTab_${apiRequest.id}" aria-labelledby="requestParams-tab">
+                         <div class="query_params">
+                         </div> 
+                    </div>
+                    <div class="tab-pane fade request_header_tab" role="tabpanel" id="requestHeaderTab_${apiRequest.id}"
+                         aria-labelledby="requestHeader-tab">
+                         <div class="request_headers">
+                         </div>
+                    </div>
+                    <div class="tab-pane fade request_body_tab" role="tabpanel" id="requestBodyTab_${apiRequest.id}" aria-labelledby="requestBody-tab">
+                      <div class="d-flex flex-column">
+                        <select class="form-select mt-1 request_body_type" name="request_type">
+                            <option value="json">json</option>
+                            <option value="xml">xml</option>
+                            <option value="">text/plain</option>
+                        </select>
+                        <div class="request_body mt-1" style="width:100%;height: 300px; border:1px solid grey;"></div>
+                      </div>
+                    </div>
+                    <div class="tab-pane fade pre_script_tab" role="tabpanel" id="preRequestTab_${apiRequest.id}" aria-labelledby="preScrit-tab">
+                        <div class="d-flex flex-row">
+                            <div style="width:calc(100% - 200px);">
+                                <div class="pre-request mt-1" style="height:300px;border:1px solid grey;"></div>
                             </div>
-                        </div> 
+                            <div style="width: 200px;">
+                                <div class="pre-request-variable">
+                                </div>
+                            </div> 
+                        </div>
+                    </div>
+                    <div class="tab-pane fade post_script_tab" role="tabpanel" id="postRequestTab_${apiRequest.id}"
+                         aria-labelledby="postScrit-tab">
+                         <div class="d-flex flex-row">
+                           <div style="width:calc(100% - 200px);">
+                             <div class="post-request mt-1" style="height:300px;border:1px solid grey;"></div>
+                           </div>
+                           <div style="width: 200px;">
+                             <div class="post-request-variable">
+                             </div>
+                           </div> 
+                        </div>
                     </div>
                 </div>
-                <div class="tab-pane fade post_script_tab" role="tabpanel" id="postRequestTab_${apiRequest.id}"
-                     aria-labelledby="postScrit-tab">
-                     <div class="d-flex flex-row">
-                        <div style="width:calc(100% - 200px);">
-                            <div class="post-request mt-1" style="height:300px;border:1px solid grey;"></div>
-                        </div>
-                        <div style="width: 200px;">
-                        <div class="post-request-variable">
-                            </div>
-</div> 
-                    </div>
+              </div>
+<!--              <div class="resizer" data-direction="vertical"></div>-->
+              <div class="api_response" style="flex: 1">
+                <div class="mt-1">
+                  <span>Response</span>
+                  <span class="response_status"></span>
+                  <span class="response_time"></span>
+                  <span class="response_size"></span>
+                </div>
+                <ul class="nav nav-tabs mt-1" role="tablist">
+                    <li class="nav-item" role="presentation">
+                        <button class="nav-link active" data-bs-toggle="tab" data-bs-target="#responseBodyTab_${apiRequest.id}" type="button" role="tab" aria-controls="responseBody" aria-selected="false">Body</button>
+                    </li>
+                    <li class="nav-item" role="presentation">
+                        <button class="nav-link" data-bs-toggle="tab" data-bs-target="#responseHeaderTab_${apiRequest.id}" type="button" role="tab" aria-controls="responseHeader" aria-selected="false">Header</button>
+                    </li>
+                    <li class="nav-item" role="presentation">
+                        <button class="nav-link" data-bs-toggle="tab" data-bs-target="#consoleTab_${apiRequest.id}" type="button" role="tab" aria-controls="consoleTab" aria-selected="false">Console</button>
+                    </li>
+                </ul>
+                <div class="tab-content border-bottom" style="min-height: 250px;">
+                  <div class="tab-pane fade show active" id="responseBodyTab_${apiRequest.id}" role="tabpanel"
+                       aria-labelledby="responseParams-tab">
+                      <div class="response_body mt-1" style="width:100%;height:250px;border:1px solid grey;"></div>
+                  </div>
+                  <div class="tab-pane fade" id="responseHeaderTab_${apiRequest.id}" role="tabpanel"
+                       aria-labelledby="responseParams-tab">
+                      <table class="table">
+                          <thead>
+                          <tr>
+                              <th scope="col">이름</th>
+                              <th scope="col">값</th>
+                          </tr>
+                          </thead>
+                          <tbody class="response_headers">
+                          </tbody>
+                      </table>
+                  </div>
+                  <div class="tab-pane fade" id="consoleTab_${apiRequest.id}" role="tabpanel"
+                       aria-labelledby="console-tab">
+                      <div class="console mt-1" style="width:100%;height:250px;border:1px solid grey;"></div>
+                  </div>
                 </div>
             </div>
-            <div class="mt-1">
-                <span>Response</span>
-                <span class="response_status"></span>
-                <span class="response_time"></span>
-                <span class="response_size"></span>
-            </div>
-            <ul class="nav nav-tabs mt-1" role="tablist">
-                <li class="nav-item" role="presentation">
-                    <button class="nav-link active" data-bs-toggle="tab" data-bs-target="#responseBodyTab_${apiRequest.id}" type="button" role="tab" aria-controls="responseBody" aria-selected="false">Body</button>
-                </li>
-                <li class="nav-item" role="presentation">
-                    <button class="nav-link" data-bs-toggle="tab" data-bs-target="#responseHeaderTab_${apiRequest.id}" type="button" role="tab" aria-controls="responseHeader" aria-selected="false">Header</button>
-                </li>
-                <li class="nav-item" role="presentation">
-                    <button class="nav-link" data-bs-toggle="tab" data-bs-target="#consoleTab_${apiRequest.id}" type="button" role="tab" aria-controls="consoleTab" aria-selected="false">Console</button>
-                </li>
-            </ul>
-            <div class="tab-content border-bottom" style="min-height: 250px;">
-                <div class="tab-pane fade show active" id="responseBodyTab_${apiRequest.id}" role="tabpanel"
-                     aria-labelledby="responseParams-tab">
-                    <div class="response_body mt-1" style="width:100%;height:250px;border:1px solid grey;"></div>
-                </div>
-                <div class="tab-pane fade" id="responseHeaderTab_${apiRequest.id}" role="tabpanel"
-                     aria-labelledby="responseParams-tab">
-                    <table class="table">
-                        <thead>
-                        <tr>
-                            <th scope="col">이름</th>
-                            <th scope="col">값</th>
-                        </tr>
-                        </thead>
-                        <tbody class="response_headers">
-                        </tbody>
-                    </table>
-                </div>
-                <div class="tab-pane fade" id="consoleTab_${apiRequest.id}" role="tabpanel"
-                     aria-labelledby="console-tab">
-                    <div class="console mt-1" style="width:100%;height:250px;border:1px solid grey;"></div>
-                </div>
             </div>
         </div>
+       
         `;
-    }
+  }
 
-
-    headerTemplate(header, index) {
-        return `
+  headerTemplate(header, index) {
+    return `
             <tr data-index="${index}">
                 <td>
                     <div class="form-check">
@@ -244,10 +246,10 @@ class APITester {
                 </td>
             </tr>
         `;
-    }
+  }
 
-    responseHeaderTemplate(key, value) {
-        return `
+  responseHeaderTemplate(key, value) {
+    return `
             <tr>
                 <td>
                     <input class="form-control" type="text" value="${key}" readonly/>
@@ -257,10 +259,10 @@ class APITester {
                 </td>
             </tr>
         `;
-    }
+  }
 
-    collectionTemplate(collection, index) {
-        return `
+  collectionTemplate(collection, index) {
+    return `
         <li id="collection_${index}" class="collection api_scenario_item" data-index="${index}">
             <div class="d-flex justify-content-between">
                 <button class="btn d-inline-flex align-items-center rounded normal"
@@ -279,10 +281,10 @@ class APITester {
             </div>
         </li>
         `;
-    }
+  }
 
-    collectionApiTemplate(api, apiIndex, collectionId) {
-        return `
+  collectionApiTemplate(api, apiIndex, collectionId) {
+    return `
         <li class="d-flex justify-content-between api_request_sortable " draggable="true" data-collection="${collectionId}" data-id="${api.id}" data-index="${apiIndex}" data-node-type="api" data-name="${api.name}">
                 <a href="#" class="d-inline-flex align-items-center rounded open_api_request" data-node-type="api">${api.name}</a>
                 <div class="d-flex justify-content-between">
@@ -291,952 +293,954 @@ class APITester {
                 </div>
             </li>
         `;
+  }
+
+  init(servers) {
+    if (servers) {
+      this.servers = servers;
+      if (this.servers.length === 0) {
+        $('.toast-body').text('서버관리에서 서버를 등록해주세요.');
+        $('.toast').toast('show');
+      }
+    }
+    this.bindEvents();
+    this.loadCollections();
+  }
+
+  bindEvents() {
+    const events = [
+      {selector: '.btn_add_header', action: this.addHeader.bind(this)},
+      {selector: '.btn_remove_header', action: this.removeHeader.bind(this)},
+      {selector: '.send', action: this.handleSendAPIRequest.bind(this)},
+      {selector: '.save', action: this.saveAPIRequest.bind(this)},
+      {selector: '.save_collection', action: this.addCollection.bind(this)},
+      {selector: '#cancel-ajax', action: this.cancelAjaxRequest.bind(this)},
+      {selector: '#new_collection', action: this.showNewCollectionModal.bind(this)},
+      {selector: '#new_request', action: this.showNewApiRequestModal.bind(this)},
+      {selector: '.edit_collection', action: this.showCollectionEditModal.bind(this)},
+      {selector: '.delete_collection', action: this.showCollectionDeleteModal.bind(this)},
+      {selector: '.confirm_delete', action: this.removeCollection.bind(this)},
+      {selector: '.add_new_request', action: this.addAPIRequest.bind(this)},
+      {selector: '.edit_api_request', action: this.showEditNameModal.bind(this)},
+      {selector: '.delete_api_request', action: this.showDeleteApiRequestModal.bind(this)},
+      {selector: '.open_api_request', action: this.openApiRequest.bind(this)},
+      {selector: '.confirm_delete_api', action: this.deleteApiRequest.bind(this)},
+      {selector: '.close_tab', action: this.closeTab.bind(this)}
+    ];
+
+    for (let event of events) {
+      $(document).on('click', event.selector, event.action);
     }
 
-    init(servers) {
-        if (servers) {
-            this.servers = servers;
-            if (this.servers.length === 0) {
-                $('.toast-body').text('서버관리에서 서버를 등록해주세요.');
-                $('.toast').toast('show');
-            }
+    $(document).on('change', '.path', this.parseParam.bind(this));
+    $(document).on('change', '.request_headers input', this.handleUIUpdate.bind(this));
+    $(document).on('change', '.api_request_info select, .api_request_info input', this.handleUIUpdate.bind(this));
+    $(document).on('change', '.api_request_info select', this.handleUpdateServer.bind(this));
+
+    window.addEventListener('resize', this.resizeEditor.bind(this));
+
+  }
+
+  resizeEditor() {
+    //FIXME: 창 크기 변경시 자동으로 editor 크기가 조정되지 않아서, 0으로 강제 변경후 다시 layout() 호출
+
+    for (let i = 0; i < this.requestEditors.length; i++) {
+      this.requestEditors[i].layout({
+        width: 0
+      });
+    }
+    for (let i = 0; i < this.responseEditors.length; i++) {
+      this.responseEditors[i].layout({
+        width: 0
+      });
+    }
+    for (let i = 0; i < this.preRequestEditors.length; i++) {
+      this.preRequestEditors[i].layout({
+        width: 0
+      });
+    }
+    for (let i = 0; i < this.postRequestEditors.length; i++) {
+      this.postRequestEditors[i].layout({
+        width: 0
+      });
+    }
+
+    for (let i = 0; i < this.requestEditors.length; i++) {
+      this.requestEditors[i].layout({});
+    }
+    for (let i = 0; i < this.responseEditors.length; i++) {
+      this.responseEditors[i].layout({});
+    }
+    for (let i = 0; i < this.preRequestEditors.length; i++) {
+      this.preRequestEditors[i].layout({});
+    }
+    for (let i = 0; i < this.postRequestEditors.length; i++) {
+      this.postRequestEditors[i].layout({});
+    }
+
+  }
+
+  showCollectionDeleteModal(event) {
+    const collectionId = $(event.currentTarget).closest('button').data('collection');
+    $('#confirm_delete_modal').find('.confirm_delete').data('id', collectionId);
+    $('#confirm_delete_modal').modal('show');
+  }
+
+  getApiRequestModel(apiId) {
+    let foundApi = null;
+    this.collections.forEach(function(collection) {
+      collection.apis.forEach(function(api) {
+        if (api.id === apiId) {
+          foundApi = api;
         }
-        this.bindEvents();
-        this.loadCollections();
+      });
+    });
+
+    return foundApi;
+  }
+
+  showCollectionEditModal(event) {
+    const me = this;
+    const collectionId = $(event.currentTarget).closest('button').data('collection');
+    const collection = this.collections.filter(function(collection) {
+      return collection.id === collectionId;
+    })[0];
+
+    $('#edit_name_modal').find('input').val('');
+    $('#edit_name_modal').modal('show');
+
+    let saveBtn = $('#edit_name_modal').find('button.change_name');
+    saveBtn.off('click');
+
+    saveBtn.on('click', function() {
+      collection.name = $('#edit_name_modal').find('input').val();
+      me.saveCollection(collection.id, collection.name);
+      me.renderCollections();
+      $('#edit_name_modal').modal('hide');
+    });
+  }
+
+  showDeleteApiRequestModal(event) {
+    let collectionId = $(event.currentTarget).closest('li').data('collection');
+    let apiId = $(event.currentTarget).closest('li').data('id');
+    $('#confirm_delete_api_modal').find('.confirm_delete_api').data('id', apiId);
+    $('#confirm_delete_api_modal').find('.confirm_delete_api').data('collection', collectionId);
+    $('#confirm_delete_api_modal').modal('show');
+  }
+
+  showNewApiRequestModal(event) {
+    if (this.collections.length == 0) {
+      $('.toast-body').text('새로운 컬렉션을 추가해 주세요.');
+      $('.toast').toast('show');
+      return;
     }
+    $('#new_api_request_modal').modal('show');
+  }
 
-    bindEvents() {
-        const events = [
-            {selector: '.btn_add_header', action: this.addHeader.bind(this)},
-            {selector: '.btn_remove_header', action: this.removeHeader.bind(this)},
-            {selector: '.send', action: this.handleSendAPIRequest.bind(this)},
-            {selector: '.save', action: this.saveAPIRequest.bind(this)},
-            {selector: '.save_collection', action: this.addCollection.bind(this)},
-            {selector: '#cancel-ajax', action: this.cancelAjaxRequest.bind(this)},
-            {selector: '#new_collection', action: this.showNewCollectionModal.bind(this)},
-            {selector: '#new_request', action: this.showNewApiRequestModal.bind(this)},
-            {selector: '.edit_collection', action: this.showCollectionEditModal.bind(this)},
-            {selector: '.delete_collection', action: this.showCollectionDeleteModal.bind(this)},
-            {selector: '.confirm_delete', action: this.removeCollection.bind(this)},
-            {selector: '.add_new_request', action: this.addAPIRequest.bind(this)},
-            {selector: '.edit_api_request', action: this.showEditNameModal.bind(this)},
-            {selector: '.delete_api_request', action: this.showDeleteApiRequestModal.bind(this)},
-            {selector: '.open_api_request', action: this.openApiRequest.bind(this)},
-            {selector: '.confirm_delete_api', action: this.deleteApiRequest.bind(this)},
-            {selector: '.close_tab', action: this.closeTab.bind(this)},
-        ];
+  showNewCollectionModal(event) {
+    $('#new_collection_modal').find('input').val('');
+    $('#new_collection_modal').modal('show');
+  }
 
-        for (let event of events) {
-            $(document).on('click', event.selector, event.action);
-        }
+  showEditNameModal(event) {
+    const me = this;
+    const apiId = $(event.currentTarget).closest('li').data('id');
+    const collectionId = $(event.currentTarget).closest('li').data('collection');
 
-        $(document).on('change', '.path', this.parseParam.bind(this));
-        $(document).on('change', '.request_headers input', this.handleUIUpdate.bind(this));
-        $(document).on('change', '.api_request_info select, .api_request_info input', this.handleUIUpdate.bind(this));
-        $(document).on('change', '.api_request_info select', this.handleUpdateServer.bind(this));
+    const collection = this.collections.filter(function(collection) {
+      return collection.id === collectionId;
+    })[0];
 
-        window.addEventListener('resize', this.resizeEditor.bind(this));
+    let apiRequest = collection.apis.filter(function(api) {
+      return api.id === apiId;
+    })[0];
 
+    apiRequest.collectionId = collectionId;
 
+    let saveBtn = $('#edit_name_modal').find('button.change_name');
+    saveBtn.off('click');
+    saveBtn.on('click', function() {
+      apiRequest.name = $('#edit_name_modal').find('input').val();
+      me.changeAPIName(apiRequest);
+      me.renderCollections();
+      $('#edit_name_modal').modal('hide');
+
+      //탭이 열려 있으면, 닫았다가 다시 열어야 함.
+      me.renderTabHeader();
+      me.renderTabContent(apiRequest.index);
+
+    });
+    $('#edit_name_modal').find('input').val('');
+    $('#edit_name_modal').modal('show');
+  }
+
+  getFieldValue(element) {
+    if ($(element).is('select') || $(element).is('input[type="text"]')) {
+      return $(element).val();
     }
-
-    resizeEditor() {
-        //FIXME: 창 크기 변경시 자동으로 editor 크기가 조정되지 않아서, 0으로 강제 변경후 다시 layout() 호출
-
-        for (let i = 0; i < this.requestEditors.length; i++) {
-            this.requestEditors[i].layout({
-                width: 0
-            });
-        }
-        for (let i = 0; i < this.responseEditors.length; i++) {
-            this.responseEditors[i].layout({
-                width: 0
-            });
-        }
-        for (let i = 0; i < this.preRequestEditors.length; i++) {
-            this.preRequestEditors[i].layout({
-                width: 0
-            });
-        }
-        for (let i = 0; i < this.postRequestEditors.length; i++) {
-            this.postRequestEditors[i].layout({
-                width: 0
-            });
-        }
-
-        for (let i = 0; i < this.requestEditors.length; i++) {
-            this.requestEditors[i].layout({});
-        }
-        for (let i = 0; i < this.responseEditors.length; i++) {
-            this.responseEditors[i].layout({});
-        }
-        for (let i = 0; i < this.preRequestEditors.length; i++) {
-            this.preRequestEditors[i].layout({});
-        }
-        for (let i = 0; i < this.postRequestEditors.length; i++) {
-            this.postRequestEditors[i].layout({});
-        }
-
+    if ($(element).is('input[type="checkbox"]')) {
+      return $(element).is(':checked');
     }
+  }
 
-    showCollectionDeleteModal(event) {
-        const collectionId = $(event.currentTarget).closest('button').data('collection');
-        $('#confirm_delete_modal').find('.confirm_delete').data('id', collectionId);
-        $('#confirm_delete_modal').modal('show');
+  handleUIUpdate(event) {
+    if (event) {
+      event.preventDefault();
+      const element = event.currentTarget;
+      const fieldName = $(element).attr('name');
+      const newValue = this.getFieldValue(element);
+      const tabIndex = $('#apiRequestTabContent').children().index($(event.currentTarget).closest('.api_request'));
+      let model = this.apiRequests[tabIndex];
+
+      if (fieldName !== '') {
+        _.set(model, fieldName, newValue);
+      }
     }
+  }
 
-    getApiRequestModel(apiId) {
-        let foundApi = null;
-        this.collections.forEach(function (collection) {
-            collection.apis.forEach(function (api) {
-                if (api.id === apiId) {
-                    foundApi = api;
-                }
-            });
-        });
+  handleUpdateServer(event) {
+    const tabIndex = $('#apiRequestTabContent').children().index($(event.currentTarget).closest('.api_request'));
+    let model = this.apiRequests[tabIndex];
+    let target = $('#api_request_' + model.id);
+    target.find('input[name="basePath"]').val(this.basePath(model.server));
+  }
 
-        return foundApi;
-    }
+  renderHeaders(headers) {
+    return headers.map((header, index) => this.headerTemplate(header, index)).join('');
+  }
 
-    showCollectionEditModal(event) {
-        const me = this;
-        const collectionId = $(event.currentTarget).closest('button').data('collection');
-        const collection = this.collections.filter(function (collection) {
-            return collection.id === collectionId;
-        })[0];
+  renderTabHeader() {
+    let apiRequestTabTitle = $(this.apiTabTitleTarget);
+    apiRequestTabTitle.empty();
 
-        $('#edit_name_modal').find('input').val('');
-        $('#edit_name_modal').modal('show');
-
-        let saveBtn = $('#edit_name_modal').find('button.change_name');
-        saveBtn.off('click');
-
-        saveBtn.on('click', function () {
-            collection.name = $('#edit_name_modal').find('input').val();
-            me.saveCollection(collection.id, collection.name);
-            me.renderCollections();
-            $('#edit_name_modal').modal('hide');
-        });
-    }
-
-    showDeleteApiRequestModal(event) {
-        let collectionId = $(event.currentTarget).closest('li').data('collection');
-        let apiId = $(event.currentTarget).closest('li').data('id');
-        $('#confirm_delete_api_modal').find('.confirm_delete_api').data('id', apiId);
-        $('#confirm_delete_api_modal').find('.confirm_delete_api').data('collection', collectionId);
-        $('#confirm_delete_api_modal').modal('show');
-    }
-
-    showNewApiRequestModal(event) {
-        if (this.collections.length == 0) {
-            $('.toast-body').text('새로운 컬렉션을 추가해 주세요.');
-            $('.toast').toast('show');
-            return;
-        }
-        $('#new_api_request_modal').modal('show');
-    }
-
-    showNewCollectionModal(event) {
-        $('#new_collection_modal').find('input').val('');
-        $('#new_collection_modal').modal('show');
-    }
-
-    showEditNameModal(event) {
-        const me = this;
-        const apiId = $(event.currentTarget).closest('li').data('id');
-        const collectionId = $(event.currentTarget).closest('li').data('collection');
-
-        const collection = this.collections.filter(function (collection) {
-            return collection.id === collectionId;
-        })[0];
-
-        let apiRequest = collection.apis.filter(function (api) {
-            return api.id === apiId;
-        })[0];
-
-        apiRequest.collectionId = collectionId;
-
-        let saveBtn = $('#edit_name_modal').find('button.change_name');
-        saveBtn.off('click');
-        saveBtn.on('click', function () {
-            apiRequest.name = $('#edit_name_modal').find('input').val();
-            me.changeAPIName(apiRequest);
-            me.renderCollections();
-            $('#edit_name_modal').modal('hide');
-
-            //탭이 열려 있으면, 닫았다가 다시 열어야 함.
-            me.renderTabHeader();
-            me.renderTabContent(apiRequest.index);
-
-        });
-        $('#edit_name_modal').find('input').val('');
-        $('#edit_name_modal').modal('show');
-    }
-
-    getFieldValue(element) {
-        if ($(element).is('select') || $(element).is('input[type="text"]')) {
-            return $(element).val();
-        }
-        if ($(element).is('input[type="checkbox"]')) {
-            return $(element).is(':checked');
-        }
-    }
-
-    handleUIUpdate(event) {
-        if (event) {
-            event.preventDefault();
-            const element = event.currentTarget;
-            const fieldName = $(element).attr('name');
-            const newValue = this.getFieldValue(element);
-            const tabIndex = $('#apiRequestTabContent').children().index($(event.currentTarget).closest('.api_request'));
-            let model = this.apiRequests[tabIndex];
-
-            if (fieldName !== '') {
-                _.set(model, fieldName, newValue);
-            }
-        }
-    }
-
-    handleUpdateServer(event) {
-        const tabIndex = $('#apiRequestTabContent').children().index($(event.currentTarget).closest('.api_request'));
-        let model = this.apiRequests[tabIndex];
-        let target = $('#api_request_' + model.id);
-        target.find('input[name="basePath"]').val(this.basePath(model.server));
-    }
-
-
-    renderHeaders(headers) {
-        return headers.map((header, index) => this.headerTemplate(header, index)).join('');
-    }
-
-    renderTabHeader() {
-        let apiRequestTabTitle = $(this.apiTabTitleTarget);
-        apiRequestTabTitle.empty();
-
-        for (let idx = 0; idx < this.apiRequests.length; idx++) {
-            let li = `<li class="nav-item" role="presentation">
+    for (let idx = 0; idx < this.apiRequests.length; idx++) {
+      let li = `<li class="nav-item" role="presentation">
                         <button class="nav-link" id="api_request_tab_${this.apiRequests[idx].id}" data-bs-toggle="tab" type="button" role="tab" aria-controls="api_request_${this.apiRequests[idx].id}" data-bs-target="#api_request_${this.apiRequests[idx].id}" aria-selected="false">${this.apiRequests[idx].name}
                             <span class="close_tab"><i class="fa fa-light fa-close"></i></span>
                         </button>
                     </li>`;
-            apiRequestTabTitle.append(li);
+      apiRequestTabTitle.append(li);
+    }
+  }
+
+  showPopper(element, text) {
+    const variable = text.replace(/{{|}}/g, '');
+    this.popperContent.style.display = 'block';
+
+    const innerDiv = this.popperContent.querySelector('.variable_popper');
+    innerDiv.textContent = '{{' + variable + '}} = ' + (window.globals[variable] === undefined ? '' : window.globals[variable]);
+
+    this.popperInstance = createPopper(element, this.popperContent, {
+      placement: 'bottom', // Popper below the element
+      modifiers: [
+        {
+          name: 'offset',
+          options: {
+            offset: [0, 8] // Adjust the position if needed
+          }
         }
+      ]
+    });
+  }
+
+  hidePopper(element) {
+    if (this.popperInstance) {
+      this.popperInstance.destroy();
+      this.popperInstance = null;
     }
+    this.popperContent.style.display = 'none';
+  }
 
-    showPopper(element, text) {
-        const variable = text.replace(/{{|}}/g, '');
-        this.popperContent.style.display = 'block';
+  renderTabContent(index) {
+    var me = this;
+    let apiRequestTabContent = $(this.apiTabContentTarget);
+    let model = this.apiRequests[index];
 
-        const innerDiv = this.popperContent.querySelector('.variable_popper');
-        innerDiv.textContent =  '{{' + variable + '}} = ' + (window.globals[variable] === undefined ? '' : window.globals[variable]);
+    apiRequestTabContent.append(this.apiRequestTemplate(model, index));
 
-        this.popperInstance = createPopper(element, this.popperContent, {
-            placement: 'bottom', // Popper below the element
-            modifiers: [
-                {
-                    name: 'offset',
-                    options: {
-                        offset: [0, 8], // Adjust the position if needed
-                    },
-                },
-            ],
+    let editableInput = new EditableInput({
+      name: 'path',
+      value: model.path
+    });
+
+    let queryParamTable = new PropertyTable({
+      propertyName: 'queryParams',
+      properties: model.queryParams
+    });
+
+    let headerTable = new PropertyTable({
+      propertyName: 'headers',
+      properties: model.headers
+    });
+
+    queryParamTable.init(apiRequestTabContent.find(`#api_request_${model.id}`).find('.query_params')[0], (properties) => {
+      model.queryParams = properties;
+      console.log(model.queryParams);
+      this.buildPath(model);
+      editableInput.setValue(model.path);
+      $('span.variable').off('mouseover');
+      $('span.variable').off('mouseout');
+      document.querySelectorAll('span.variable').forEach(element => {
+        let text = element.innerText;
+        element.addEventListener('mouseover', () => me.showPopper(element, text));
+        element.addEventListener('mouseout', () => me.hidePopper(element));
+      });
+    });
+
+    headerTable.init(apiRequestTabContent.find(`#api_request_${model.id}`).find('.request_headers')[0], (properties) => {
+      model.headers = properties;
+      $('span.variable').off('mouseover');
+      $('span.variable').off('mouseout');
+      document.querySelectorAll('span.variable').forEach(element => {
+        let text = element.innerText;
+        element.addEventListener('mouseover', () => me.showPopper(element, text));
+        element.addEventListener('mouseout', () => me.hidePopper(element));
+      });
+    });
+
+    apiRequestTabContent.find(`#api_request_${model.id}`).find('.api_request_info').find('.path').each(function() {
+      editableInput.init(this, (value) => {
+        model.path = value;
+        model.queryParams = me.parseParam(model.path);
+        queryParamTable.setProperties(model.queryParams);
+        $('span.variable').off('mouseover');
+        $('span.variable').off('mouseout');
+        document.querySelectorAll('span.variable').forEach(element => {
+          let text = element.innerText;
+          element.addEventListener('mouseover', () => me.showPopper(element, text));
+          element.addEventListener('mouseout', () => me.hidePopper(element));
         });
-    }
+      });
 
-    hidePopper(element) {
-        if (this.popperInstance) {
-            this.popperInstance.destroy();
-            this.popperInstance = null;
+      $(this).append(`<label>Path</label>`);
+
+      $('span.variable').off('mouseover');
+      $('span.variable').off('mouseout');
+    });
+
+    document.querySelectorAll('.variable').forEach(element => {
+
+      let text = element.innerText;
+      element.addEventListener('mouseover', () => me.showPopper(element, text));
+      element.addEventListener('mouseout', () => me.hidePopper(element));
+    });
+
+    this.openTab(model.id);
+    let target = $('#api_request_' + model.id);
+
+    let requestBodyEditor = monaco.editor.create(target.find('.request_body')[0], {
+      value: model.requestBody,
+      language: 'json',
+      automaticLayout: true
+    });
+
+    requestBodyEditor.onMouseMove((e) => {
+      let position = e.target.position;
+      if (position) {
+        let model = requestBodyEditor.getModel();
+        let word = model.getWordAtPosition(position);
+        let lineContent = model.getLineContent(position.lineNumber);
+        if (word) {
+          if (lineContent.indexOf('{{' + word.word + '}}') > -1) {
+            me.showPopper(e.target.element, word.word);
+          }
+        } else {
+          me.hidePopper(e.target.element);
         }
-        this.popperContent.style.display = 'none';
+      }
+    });
+
+    me.requestEditors.push(requestBodyEditor);
+    target.find('.request_body')[0].addEventListener('shown.bs.tab', () => {
+      me.requestEditors[index].layout();
+    });
+
+    me.requestEditors[index].onDidChangeModelContent((e) => {
+      model.requestBody = requestBodyEditor.getValue();
+    });
+
+    target.find('.request_body_type').on('change', function() {
+      let model = requestBodyEditor.getModel();
+      monaco.editor.setModelLanguage(model, $(this).val());
+    });
+
+    let responseBodyEditor = monaco.editor.create(target.find('.response_body')[0], {
+      value: '',
+      language: 'json',
+      automaticLayout: true,
+      quickSuggestions: false
+    });
+
+    me.responseEditors.push(responseBodyEditor);
+
+    let consoleEditor = monaco.editor.create(target.find('.console')[0], {
+      value: '',
+      automaticLayout: true,
+      quickSuggestions: false
+    });
+
+    me.consoleEditors.push(consoleEditor);
+
+    let preRequestEditor = monaco.editor.create(target.find('.pre-request')[0], {
+      value: model.preRequestScript,
+      language: 'javascript',
+      automaticLayout: true,
+      quickSuggestions: false
+    });
+
+    const snippet1 = new VariableSnippet();
+    snippet1.init(target.find('.pre-request-variable')[0], preRequestEditor);
+
+    me.preRequestEditors.push(preRequestEditor);
+    target.find('.pre-request')[0].addEventListener('shown.bs.tab', () => {
+      me.preRequestEditors[index].layout();
+    });
+
+    me.preRequestEditors[index].onDidChangeModelContent((e) => {
+      model.preRequestScript = preRequestEditor.getValue();
+    });
+
+    let postRequestEditor = monaco.editor.create(target.find('.post-request')[0], {
+      value: model.postRequestScript,
+      language: 'javascript',
+      automaticLayout: true,
+      quickSuggestions: false
+    });
+
+    const snippet2 = new VariableSnippet();
+    snippet2.init(target.find('.post-request-variable')[0], postRequestEditor);
+
+    me.postRequestEditors.push(postRequestEditor);
+    target.find('.post-request')[0].addEventListener('shown.bs.tab', () => {
+      me.postRequestEditors[index].layout();
+    });
+
+    me.postRequestEditors[index].onDidChangeModelContent((e) => {
+      model.postRequestScript = postRequestEditor.getValue();
+    });
+
+    // apiRequestTabContent.find('.resizer').each(function(index, ele) {
+    //   resizable(ele,  () => {this.resizeEditor();});
+    // });
+  }
+
+  renderResponse(tabIndex) {
+    let model = this.apiRequests[tabIndex];
+    let target = $('#api_request_' + model.id);
+    target.find('.response_headers').empty();
+    target.find('.response_status').empty();
+
+    try {
+      const parsedJson = JSON.parse(model.responseModel.body);
+      const formattedJson = JSON.stringify(parsedJson, null, 2);
+      this.responseEditors[tabIndex].setValue(formattedJson);
+    } catch (e) {
+      this.responseEditors[tabIndex].setValue(model.responseModel.body);
+    }
+    if (model.responseModel && model.responseModel.headers) {
+      const headers = model.responseModel.headers;
+      Object.entries(headers).forEach(([key, value]) => {
+        target.find('.response_headers').append(this.responseHeaderTemplate(key, value));
+      });
     }
 
-    renderTabContent(index) {
-        console.log('renderTabContent');
-        var me = this;
-        let apiRequestTabContent = $(this.apiTabContentTarget);
-        let model = this.apiRequests[index];
+    target.find('.response_status').text('status: ' + model.responseModel.status);
+    target.find('.response_time').text('time: ' + model.responseModel.time + 'ms');
+    target.find('.response_size').text('size: ' + model.responseModel.size + 'bytes');
 
-        apiRequestTabContent.append(this.apiRequestTemplate(model, index));
+  }
 
-        let editableInput = new EditableInput({
-            name: 'path',
-            value: model.path,
-        });
-
-        let queryParamTable = new PropertyTable({
-            propertyName: 'queryParams',
-            properties: model.queryParams
-        });
-
-        let headerTable = new PropertyTable({
-            propertyName: 'headers',
-            properties: model.headers
-        });
-
-        queryParamTable.init(apiRequestTabContent.find(`#api_request_${model.id}`).find('.query_params')[0], (properties) => {
-            model.queryParams = properties;
-            console.log(model.queryParams);
-            this.buildPath(model);
-            editableInput.setValue(model.path);
-            $('span.variable').off('mouseover');
-            $('span.variable').off('mouseout');
-            document.querySelectorAll('span.variable').forEach(element => {
-                let text = element.innerText;
-                element.addEventListener('mouseover', () => me.showPopper(element, text));
-                element.addEventListener('mouseout', () => me.hidePopper(element));
-            });
-        });
-
-        headerTable.init(apiRequestTabContent.find(`#api_request_${model.id}`).find('.request_headers')[0], (properties) => {
-            model.headers = properties;
-            $('span.variable').off('mouseover');
-            $('span.variable').off('mouseout');
-            document.querySelectorAll('span.variable').forEach(element => {
-                let text = element.innerText;
-                element.addEventListener('mouseover', () => me.showPopper(element, text));
-                element.addEventListener('mouseout', () => me.hidePopper(element));
-            });
-        });
-
-        apiRequestTabContent.find(`#api_request_${model.id}`).find('.api_request_info').find('.path').each(function () {
-            editableInput.init(this, (value) => {
-                model.path = value;
-                model.queryParams = me.parseParam(model.path);
-                queryParamTable.setProperties(model.queryParams);
-                $('span.variable').off('mouseover');
-                $('span.variable').off('mouseout');
-                document.querySelectorAll('span.variable').forEach(element => {
-                    let text = element.innerText;
-                    element.addEventListener('mouseover', () => me.showPopper(element, text));
-                    element.addEventListener('mouseout', () => me.hidePopper(element));
-                });
-            });
-
-            $(this).append(`<label>Path</label>`);
-
-            $('span.variable').off('mouseover');
-            $('span.variable').off('mouseout');
-        });
-
-        document.querySelectorAll('.variable').forEach(element => {
-
-            let text = element.innerText;
-            element.addEventListener('mouseover', () => me.showPopper(element, text));
-            element.addEventListener('mouseout', () => me.hidePopper(element));
-        });
-
-        this.openTab(model.id);
-        let target = $('#api_request_' + model.id);
-
-        let requestBodyEditor = monaco.editor.create(target.find(".request_body")[0], {
-            value: model.requestBody,
-            language: 'json',
-            automaticLayout: true
-        });
-
-        requestBodyEditor.onMouseMove((e) => {
-            let position = e.target.position;
-            if (position) {
-                let model = requestBodyEditor.getModel();
-                let word = model.getWordAtPosition(position);
-                let lineContent = model.getLineContent(position.lineNumber);
-                if (word) {
-                    if (lineContent.indexOf('{{' + word.word + '}}') > -1) {
-                        me.showPopper(e.target.element, word.word);
-                    }
-                } else {
-                    me.hidePopper(e.target.element);
-                }
-            }
-        });
-
-        me.requestEditors.push(requestBodyEditor);
-        target.find(".request_body")[0].addEventListener('shown.bs.tab', () => {
-            me.requestEditors[index].layout();
-        });
-
-        me.requestEditors[index].onDidChangeModelContent((e) => {
-            model.requestBody = requestBodyEditor.getValue();
-        });
-
-        target.find('.request_body_type').on('change', function () {
-            let model = requestBodyEditor.getModel();
-            monaco.editor.setModelLanguage(model, $(this).val());
-        });
-
-        let responseBodyEditor = monaco.editor.create(target.find(".response_body")[0], {
-            value: '',
-            language: 'json',
-            automaticLayout: true,
-            quickSuggestions: false
-        });
-
-        me.responseEditors.push(responseBodyEditor);
-
-        let consoleEditor = monaco.editor.create(target.find(".console")[0], {
-            value: '',
-            automaticLayout: true,
-            quickSuggestions: false
-        });
-
-        me.consoleEditors.push(consoleEditor);
-
-        let preRequestEditor = monaco.editor.create(target.find(".pre-request")[0], {
-            value: model.preRequestScript,
-            language: 'javascript',
-            automaticLayout: true,
-            quickSuggestions: false
-        });
-
-        const snippet1 = new VariableSnippet();
-        snippet1.init(target.find(".pre-request-variable")[0], preRequestEditor);
-
-        me.preRequestEditors.push(preRequestEditor);
-        target.find(".pre-request")[0].addEventListener('shown.bs.tab', () => {
-            me.preRequestEditors[index].layout();
-        });
-
-        me.preRequestEditors[index].onDidChangeModelContent((e) => {
-            model.preRequestScript = preRequestEditor.getValue();
-        });
-
-        let postRequestEditor = monaco.editor.create(target.find(".post-request")[0], {
-            value: model.postRequestScript,
-            language: 'javascript',
-            automaticLayout: true,
-            quickSuggestions: false
-        });
-
-        const snippet2 = new VariableSnippet();
-        snippet2.init(target.find(".post-request-variable")[0], postRequestEditor);
-
-        me.postRequestEditors.push(postRequestEditor);
-        target.find(".post-request")[0].addEventListener('shown.bs.tab', () => {
-            me.postRequestEditors[index].layout();
-        });
-
-        me.postRequestEditors[index].onDidChangeModelContent((e) => {
-            model.postRequestScript = postRequestEditor.getValue();
-        });
-
-    }
-
-    renderResponse(tabIndex) {
-        let model = this.apiRequests[tabIndex];
-        let target = $('#api_request_' + model.id);
-        target.find('.response_headers').empty();
-        target.find(".response_status").empty();
-
-        try {
-            const parsedJson = JSON.parse(model.responseModel.body);
-            const formattedJson = JSON.stringify(parsedJson, null, 2);
-            this.responseEditors[tabIndex].setValue(formattedJson);
-        } catch (e) {
-            this.responseEditors[tabIndex].setValue(model.responseModel.body);
-        }
-        if (model.responseModel && model.responseModel.headers) {
-            const headers = model.responseModel.headers;
-            Object.entries(headers).forEach(([key, value]) => {
-                target.find('.response_headers').append(this.responseHeaderTemplate(key, value));
-            });
-        }
-
-        target.find(".response_status").text("status: " + model.responseModel.status);
-        target.find(".response_time").text("time: " + model.responseModel.time + "ms");
-        target.find(".response_size").text("size: " + model.responseModel.size + "bytes");
-
-    }
-
-    customHelper(event) {
-        // Create and return the custom helper element
-        let name = $(event.target).closest('.api_request_sortable').find('.open_api_request').text().trim();
-        let apiId = $(event.target).closest('.api_request_sortable').data('id');
-        return `<div style="display: flex; flex-direction: column; flex: 1; border: 2px dashed #333; padding: 10px;" data-id="${apiId}">
+  customHelper(event) {
+    // Create and return the custom helper element
+    let name = $(event.target).closest('.api_request_sortable').find('.open_api_request').text().trim();
+    let apiId = $(event.target).closest('.api_request_sortable').data('id');
+    return `<div style="display: flex; flex-direction: column; flex: 1; border: 2px dashed #333; padding: 10px;" data-id="${apiId}">
             <div>${name}</div>
             </div>`;
+  }
+
+  renderCollections() {
+    let select = $('#modal_collection');
+    let sidemenu = $(this.collectionTarget);
+    select.empty();
+    sidemenu.empty();
+
+    for (let i = 0; i < this.collections.length; i++) {
+      sidemenu.append(this.renderCollection(this.collections[i], i));
+      let option = $('<option>');
+      option.attr('value', this.collections[i].id);
+      option.text(this.collections[i].name);
+      select.append(option);
     }
 
-    renderCollections() {
-        let select = $('#modal_collection');
-        let sidemenu = $(this.collectionTarget);
-        select.empty();
-        sidemenu.empty();
+    $('li .api_request_sortable').draggable({
+      helper: this.customHelper,
+      start: function(event, ui) {
+        // You can add any additional data or styles you want when dragging starts
+        $(this).addClass('dragging');
+      },
+      stop: function(event, ui) {
+        // Clean up, e.g., remove styles or data
+        $(this).removeClass('dragging');
+      }
+    });
 
-        for (let i = 0; i < this.collections.length; i++) {
-            sidemenu.append(this.renderCollection(this.collections[i], i));
-            let option = $('<option>');
-            option.attr('value', this.collections[i].id);
-            option.text(this.collections[i].name);
-            select.append(option);
-        }
+  }
 
-        $("li .api_request_sortable").draggable({
-            helper: this.customHelper,
-            start: function (event, ui) {
-                // You can add any additional data or styles you want when dragging starts
-                $(this).addClass('dragging');
-            },
-            stop: function (event, ui) {
-                // Clean up, e.g., remove styles or data
-                $(this).removeClass('dragging');
-            }
+  renderCollection(collection, index) {
+    return this.collectionTemplate(collection, index);
+  }
+
+  openTab(id) {
+    try {
+      $(`#api_request_tab_${id}`).tab('show'); // API request 탭 활성화
+    } catch (e) {
+    }
+
+    try {
+      $(`#api_request_${id}`).find('.btn_request_body_tab').tab('show');  // Body 탭 활성화
+    } catch (e) {
+    }
+  }
+
+  addHeader(event) {
+    const tabIndex = $('#apiRequestTabContent').children().index($(event.currentTarget).closest('.api_request'));
+    let model = this.apiRequests[tabIndex];
+    model.headers.push({
+      enabled: true,
+      key: '',
+      value: ''
+    });
+    this.renderHeaderView(tabIndex);
+  }
+
+  removeHeader(event) {
+    const tabIndex = $('#apiRequestTabContent').children().index($(event.currentTarget).closest('.api_request'));
+    const index = $(event.currentTarget).closest('tr').data('index');
+    let model = this.apiRequests[tabIndex];
+    model.headers.splice(index, 1);
+    this.renderHeaderView(tabIndex);
+  }
+
+  renderHeaderView(tabIndex) {
+    let model = this.apiRequests[tabIndex];
+    let target = $('#api_request_' + model.id);
+    target.find('.request_headers').empty();
+    target.find('.request_headers').append(this.renderHeaders(model.headers));
+  }
+
+  parseParam(path) {
+    let queryParams = [];
+    let queryString = path.split('?')[1];
+    if (queryString) {
+      let queryParamArray = queryString.split('&');
+      for (let i = 0; i < queryParamArray.length; i++) {
+        let queryParam = queryParamArray[i].split('=');
+
+        queryParams.push({
+          enabled: true,
+          key: queryParam[0],
+          value: (queryParam[1] === undefined ? '' : queryParam[1])
         });
+      }
+    }
+    return queryParams;
+  }
 
+  buildPath(model) {
+    let queryString = model.path.split('?')[0];
+    if (model.queryParams.length > 0) {
+      queryString += '?';
+    }
+    for (let i = 0; i < model.queryParams.length; i++) {
+      if (!model.queryParams[i].enabled) {
+        continue;
+      }
+      queryString += model.queryParams[i].key + '=' + model.queryParams[i].value;
+      if (i < model.queryParams.length - 1) {
+        queryString += '&';
+      }
+    }
+    model.path = queryString;
+  }
+
+  showLoadingOverlay() {
+    $('#loading-overlay').show();
+  }
+
+  hideLoadingOverlay() {
+    $('#loading-overlay').hide();
+  }
+
+  handleSendAPIRequest(event) {
+    const tabIndex = $('#apiRequestTabContent').children().index($(event.currentTarget).closest('.api_request'));
+
+    let model = this.apiRequests[tabIndex];
+
+    if (!model.server) {
+      $('.toast-body').text('서버를 등록해주세요.');
+      $('.toast').toast('show');
+      return;
     }
 
-    renderCollection(collection, index) {
-        return this.collectionTemplate(collection, index);
-    }
+    let target = $('#api_request_' + model.id);
+    target.find('.response_headers').empty();
+    this.responseEditors[tabIndex].setValue('');
+    let console = this.consoleEditors[tabIndex];
+    model.responseModel = {};
+    this.showLoadingOverlay();
 
-    openTab(id) {
-        try {
-            $(`#api_request_tab_${id}`).tab('show'); // API request 탭 활성화
-        } catch (e) {
-        }
-
-        try {
-            $(`#api_request_${id}`).find('.btn_request_body_tab').tab('show');  // Body 탭 활성화
-        } catch (e) {
-        }
-    }
-
-    addHeader(event) {
-        const tabIndex = $('#apiRequestTabContent').children().index($(event.currentTarget).closest('.api_request'));
-        let model = this.apiRequests[tabIndex];
-        model.headers.push({
-            enabled: true,
-            key: '',
-            value: ''
-        });
-        this.renderHeaderView(tabIndex);
-    }
-
-    removeHeader(event) {
-        const tabIndex = $('#apiRequestTabContent').children().index($(event.currentTarget).closest('.api_request'));
-        const index = $(event.currentTarget).closest('tr').data('index');
-        let model = this.apiRequests[tabIndex];
-        model.headers.splice(index, 1);
-        this.renderHeaderView(tabIndex);
-    }
-
-    renderHeaderView(tabIndex) {
-        let model = this.apiRequests[tabIndex];
-        let target = $('#api_request_' + model.id);
-        target.find('.request_headers').empty();
-        target.find('.request_headers').append(this.renderHeaders(model.headers));
-    }
-
-
-    parseParam(path) {
-        let queryParams = [];
-        let queryString = path.split('?')[1];
-        if (queryString) {
-            let queryParamArray = queryString.split('&');
-            for (let i = 0; i < queryParamArray.length; i++) {
-                let queryParam = queryParamArray[i].split('=');
-
-                queryParams.push({
-                    enabled: true,
-                    key: queryParam[0],
-                    value: (queryParam[1] === undefined ? '' : queryParam[1])
-                });
-            }
-        }
-        return queryParams;
-    }
-
-    buildPath(model) {
-        let queryString = model.path.split('?')[0];
-        if (model.queryParams.length > 0) {
-            queryString += '?';
-        }
-        for (let i = 0; i < model.queryParams.length; i++) {
-            if (!model.queryParams[i].enabled) {
-                continue;
-            }
-            queryString += model.queryParams[i].key + '=' + model.queryParams[i].value;
-            if (i < model.queryParams.length - 1) {
-                queryString += '&';
-            }
-        }
-        model.path = queryString;
-    }
-
-    showLoadingOverlay() {
-        $("#loading-overlay").show();
-    }
-
-    hideLoadingOverlay() {
-        $("#loading-overlay").hide();
-    }
-
-    handleSendAPIRequest(event) {
-        const tabIndex = $('#apiRequestTabContent').children().index($(event.currentTarget).closest('.api_request'));
-
-        let model = this.apiRequests[tabIndex];
-
-        if (!model.server) {
-            $('.toast-body').text('서버를 등록해주세요.');
-            $('.toast').toast('show');
-            return;
-        }
-
-        let target = $('#api_request_' + model.id);
-        target.find('.response_headers').empty();
-        this.responseEditors[tabIndex].setValue('');
-        let console = this.consoleEditors[tabIndex];
-        model.responseModel = {};
-        this.showLoadingOverlay();
-
-        let startTime = new Date().getTime();
-        this.currentAjaxRequest = this.apiClient.sendAPIRequest(model, null, this.consoleOutput.bind(this, console))
-            .then(response => {
-                if (response) {
-                    model.responseModel = response;
-                    let endTime = new Date().getTime();
-                    model.responseModel.time = endTime - startTime;
-                } else {
-                    model.responseModel = {
-                        status: 0,
-                        time: 0,
-                        size: 0,
-                        headers: [],
-                        body: ''
-                    };
-                }
-
-                this.renderResponse(tabIndex);
-                this.hideLoadingOverlay();
-            })
-            .catch(error => {
-                $('.toast-body').text(error);
-                $('.toast').toast('show');
-                this.hideLoadingOverlay();
-            });
-    }
-
-    consoleOutput(console, message) {
-        var range = new monaco.Range(console.getModel().getLineCount(), 1, console.getModel().getLineCount(), 1);
-        var id = {major: 1, minor: 1};
-        if (typeof message === 'object') {
-            message = JSON.stringify(message, null, 2);
-        }
-        var op = {identifier: id, range: range, text: message + '\n', forceMoveMarkers: true};
-        console.executeEdits("my-source", [op]);
-    }
-
-    loadCollections() {
-        const me = this;
-        this.currentAjaxRequest = $.ajax({
-            url: this.getCollectionListURL(),
-            type: 'GET',
-            contentType: 'application/json',
-            success: function (data) {
-                me.collections = data.map(collection => {
-                    if (collection.apis) {
-                        collection.apis = collection.apis.map(api => ({...api, collectionId: collection.id}));
-                    }
-                    return collection;
-                });
-            },
-            error: function (response, textStatus, errorThrown) {
-                me.hideLoadingOverlay();
-                $('.toast-body').text(response.responseJSON.error);
-                $('.toast').toast('show');
-            },
-            complete: function () {
-                me.renderCollections();
-                me.hideLoadingOverlay();
-            }
-        });
-    }
-
-    addCollection(event) {
-        const name = $('#new_collection_name').val();
-        const me = this;
-        me.showLoadingOverlay();
-        this.currentAjaxRequest = $.ajax({
-            url: this.getCollectionCreateURL(),
-            type: 'POST',
-            contentType: 'application/json',
-            data: JSON.stringify({name: name}),
-            error: function (response, textStatus, errorThrown) {
-                me.hideLoadingOverlay();
-                $('.toast-body').text(response.responseJSON.error);
-                $('.toast').toast('show');
-            },
-            complete: function () {
-                me.loadCollections();
-                me.hideLoadingOverlay();
-                $('#new_collection_modal').modal('hide');
-            }
-        });
-    }
-
-    saveCollection(id, name) {
-        const me = this;
-        me.showLoadingOverlay();
-        this.currentAjaxRequest = $.ajax({
-            url: this.getCollectionUpdateURL(),
-            type: 'POST',
-            contentType: 'application/json',
-            data: JSON.stringify({id: id, name: name}),
-            error: function (response, textStatus, errorThrown) {
-                me.hideLoadingOverlay();
-                $('.toast-body').text(response.responseJSON.error);
-                $('.toast').toast('show');
-            },
-            complete: function () {
-                me.loadCollections();
-                me.hideLoadingOverlay();
-                $('#new_collection_modal').modal('hide');
-            }
-        });
-    }
-
-    removeCollection(event) {
-        let collectionId = $(event.currentTarget).closest('button').data('id');
-        const me = this;
-        me.showLoadingOverlay();
-        this.currentAjaxRequest = $.ajax({
-            url: this.getCollectionDeleteURL(),
-            type: 'POST',
-            contentType: 'application/json',
-            data: JSON.stringify({id: collectionId}),
-            success: function () {
-            },
-            error: function (response, textStatus, errorThrown) {
-                me.hideLoadingOverlay();
-                $('.toast-body').text(response.responseJSON.error);
-                $('.toast').toast('show');
-            },
-            complete: function () {
-                me.loadCollections();
-                me.hideLoadingOverlay();
-                $('#confirm_delete_modal').modal('hide');
-            }
-        });
-    }
-
-    changeAPIName(model) {
-        const me = this;
-        me.showLoadingOverlay();
-        this.currentAjaxRequest = $.ajax({
-            url: this.getAPISaveURL(model.collectionId),
-            type: 'POST',
-            contentType: 'application/json',
-            data: JSON.stringify(model),
-            success: function (data) {
-                let message = '저장되었습니다.';
-                $('.toast-body').text(message);
-                $('.toast').toast('show');
-            },
-            error: function (response, textStatus, errorThrown) {
-                me.hideLoadingOverlay();
-                $('.toast-body').text(response.responseJSON.error);
-                $('.toast').toast('show');
-            },
-            complete: function () {
-                me.hideLoadingOverlay();
-            }
-        });
-    }
-
-    saveAPIRequest(event) {
-        const me = this;
-        const index = $('#apiRequestTabContent').children().index($(event.currentTarget).closest('.api_request'));
-        let model = this.apiRequests[index];
-        me.showLoadingOverlay();
-
-        this.currentAjaxRequest = $.ajax({
-            url: this.getAPISaveURL(model.collectionId),
-            type: 'POST',
-            contentType: 'application/json',
-            data: JSON.stringify(model),
-            success: function (data) {
-                let message = '저장되었습니다.';
-                $('.toast-body').text(message);
-                $('.toast').toast('show');
-            },
-            error: function (response, textStatus, errorThrown) {
-                me.hideLoadingOverlay();
-                $('.toast-body').text(response.responseJSON.error);
-                $('.toast').toast('show');
-            },
-            complete: function () {
-                me.hideLoadingOverlay();
-            }
-        });
-    }
-
-    addAPIRequest(event) {
-        const collectionId = $('#modal_collection').val();
-        let newApiName = $('#new_api_name').val();
-        if (newApiName === '') {
-            newApiName = '새로운 API';
-        }
-
-        const collection = this.collections.filter(function (collection) {
-            return collection.id === collectionId;
-        })[0];
-        let me = this;
-        let newApi = {
-            id: '',
-            server: null,
-            method: 'GET',
-            name: newApiName,
-            path: '',
-            headers: [],
-            queryParams: [],
-            requestBody: '',
-            preRequestScript: '',
-            postRequestScript: '',
-            collectionId: collectionId,
-            responseModel: {
-                status: 0,
-                time: 0,
-                size: 0,
-                headers: [],
-                ody: ''
-            }
+    let startTime = new Date().getTime();
+    this.currentAjaxRequest = this.apiClient.sendAPIRequest(model, null, this.consoleOutput.bind(this, console)).then(response => {
+      if (response) {
+        model.responseModel = response;
+        let endTime = new Date().getTime();
+        model.responseModel.time = endTime - startTime;
+      } else {
+        model.responseModel = {
+          status: 0,
+          time: 0,
+          size: 0,
+          headers: [],
+          body: ''
         };
-        newApi.collectionName = collection.name;
+      }
 
-        this.currentAjaxRequest = $.ajax({
-            url: this.getAPISaveURL(collectionId),
-            type: 'POST',
-            contentType: 'application/json',
-            data: JSON.stringify(newApi),
-            success: function (data) {
-                newApi.id = data;
-            },
-            error: function (response, textStatus, errorThrown) {
-                me.hideLoadingOverlay();
-                $('.toast-body').text(response.responseJSON.error);
-                $('.toast').toast('show');
-            },
-            complete: function () {
-                me.loadCollections();
-                me.apiRequests.push(newApi);
-                me.currentIndex = me.apiRequests.length - 1;
+      this.renderResponse(tabIndex);
+      this.hideLoadingOverlay();
+    }).catch(error => {
+      $('.toast-body').text(error);
+      $('.toast').toast('show');
+      this.hideLoadingOverlay();
+    });
+  }
 
-                me.renderTabHeader();
-                me.renderTabContent(me.currentIndex);
-                $('#new_api_name').val('');
-                me.hideLoadingOverlay();
-                $('#new_api_request_modal').modal('hide');
-            }
+  consoleOutput(console, message) {
+    var range = new monaco.Range(console.getModel().getLineCount(), 1, console.getModel().getLineCount(), 1);
+    var id = {major: 1, minor: 1};
+    if (typeof message === 'object') {
+      message = JSON.stringify(message, null, 2);
+    }
+    var op = {
+      identifier: id,
+      range: range,
+      text: message + '\n',
+      forceMoveMarkers: true
+    };
+    console.executeEdits('my-source', [op]);
+  }
+
+  loadCollections() {
+    const me = this;
+    this.currentAjaxRequest = $.ajax({
+      url: this.getCollectionListURL(),
+      type: 'GET',
+      contentType: 'application/json',
+      success: function(data) {
+        me.collections = data.map(collection => {
+          if (collection.apis) {
+            collection.apis = collection.apis.map(api => ({...api, collectionId: collection.id}));
+          }
+          return collection;
         });
+      },
+      error: function(response, textStatus, errorThrown) {
+        me.hideLoadingOverlay();
+        $('.toast-body').text(response.responseJSON.error);
+        $('.toast').toast('show');
+      },
+      complete: function() {
+        me.renderCollections();
+        me.hideLoadingOverlay();
+      }
+    });
+  }
+
+  addCollection(event) {
+    const name = $('#new_collection_name').val();
+    const me = this;
+    me.showLoadingOverlay();
+    this.currentAjaxRequest = $.ajax({
+      url: this.getCollectionCreateURL(),
+      type: 'POST',
+      contentType: 'application/json',
+      data: JSON.stringify({name: name}),
+      error: function(response, textStatus, errorThrown) {
+        me.hideLoadingOverlay();
+        $('.toast-body').text(response.responseJSON.error);
+        $('.toast').toast('show');
+      },
+      complete: function() {
+        me.loadCollections();
+        me.hideLoadingOverlay();
+        $('#new_collection_modal').modal('hide');
+      }
+    });
+  }
+
+  saveCollection(id, name) {
+    const me = this;
+    me.showLoadingOverlay();
+    this.currentAjaxRequest = $.ajax({
+      url: this.getCollectionUpdateURL(),
+      type: 'POST',
+      contentType: 'application/json',
+      data: JSON.stringify({id: id, name: name}),
+      error: function(response, textStatus, errorThrown) {
+        me.hideLoadingOverlay();
+        $('.toast-body').text(response.responseJSON.error);
+        $('.toast').toast('show');
+      },
+      complete: function() {
+        me.loadCollections();
+        me.hideLoadingOverlay();
+        $('#new_collection_modal').modal('hide');
+      }
+    });
+  }
+
+  removeCollection(event) {
+    let collectionId = $(event.currentTarget).closest('button').data('id');
+    const me = this;
+    me.showLoadingOverlay();
+    this.currentAjaxRequest = $.ajax({
+      url: this.getCollectionDeleteURL(),
+      type: 'POST',
+      contentType: 'application/json',
+      data: JSON.stringify({id: collectionId}),
+      success: function() {
+      },
+      error: function(response, textStatus, errorThrown) {
+        me.hideLoadingOverlay();
+        $('.toast-body').text(response.responseJSON.error);
+        $('.toast').toast('show');
+      },
+      complete: function() {
+        me.loadCollections();
+        me.hideLoadingOverlay();
+        $('#confirm_delete_modal').modal('hide');
+      }
+    });
+  }
+
+  changeAPIName(model) {
+    const me = this;
+    me.showLoadingOverlay();
+    this.currentAjaxRequest = $.ajax({
+      url: this.getAPISaveURL(model.collectionId),
+      type: 'POST',
+      contentType: 'application/json',
+      data: JSON.stringify(model),
+      success: function(data) {
+        let message = '저장되었습니다.';
+        $('.toast-body').text(message);
+        $('.toast').toast('show');
+      },
+      error: function(response, textStatus, errorThrown) {
+        me.hideLoadingOverlay();
+        $('.toast-body').text(response.responseJSON.error);
+        $('.toast').toast('show');
+      },
+      complete: function() {
+        me.hideLoadingOverlay();
+      }
+    });
+  }
+
+  saveAPIRequest(event) {
+    const me = this;
+    const index = $('#apiRequestTabContent').children().index($(event.currentTarget).closest('.api_request'));
+    let model = this.apiRequests[index];
+    me.showLoadingOverlay();
+
+    this.currentAjaxRequest = $.ajax({
+      url: this.getAPISaveURL(model.collectionId),
+      type: 'POST',
+      contentType: 'application/json',
+      data: JSON.stringify(model),
+      success: function(data) {
+        let message = '저장되었습니다.';
+        $('.toast-body').text(message);
+        $('.toast').toast('show');
+      },
+      error: function(response, textStatus, errorThrown) {
+        me.hideLoadingOverlay();
+        $('.toast-body').text(response.responseJSON.error);
+        $('.toast').toast('show');
+      },
+      complete: function() {
+        me.hideLoadingOverlay();
+      }
+    });
+  }
+
+  addAPIRequest(event) {
+    const collectionId = $('#modal_collection').val();
+    let newApiName = $('#new_api_name').val();
+    if (newApiName === '') {
+      newApiName = '새로운 API';
     }
 
-    cancelAjaxRequest() {
-        if (this.currentAjaxRequest) {
-            try {
+    const collection = this.collections.filter(function(collection) {
+      return collection.id === collectionId;
+    })[0];
+    let me = this;
+    let newApi = {
+      id: '',
+      server: null,
+      method: 'GET',
+      name: newApiName,
+      path: '',
+      headers: [],
+      queryParams: [],
+      requestBody: '',
+      preRequestScript: '',
+      postRequestScript: '',
+      collectionId: collectionId,
+      responseModel: {
+        status: 0,
+        time: 0,
+        size: 0,
+        headers: [],
+        ody: ''
+      }
+    };
+    newApi.collectionName = collection.name;
 
-                this.currentAjaxRequest.abort();
-            } catch (e) {
-                this.apiClient.abort();
-            }
-        }
-        this.hideLoadingOverlay();
+    this.currentAjaxRequest = $.ajax({
+      url: this.getAPISaveURL(collectionId),
+      type: 'POST',
+      contentType: 'application/json',
+      data: JSON.stringify(newApi),
+      success: function(data) {
+        newApi.id = data;
+      },
+      error: function(response, textStatus, errorThrown) {
+        me.hideLoadingOverlay();
+        $('.toast-body').text(response.responseJSON.error);
+        $('.toast').toast('show');
+      },
+      complete: function() {
+        me.loadCollections();
+        me.apiRequests.push(newApi);
+        me.currentIndex = me.apiRequests.length - 1;
+
+        me.renderTabHeader();
+        me.renderTabContent(me.currentIndex);
+        $('#new_api_name').val('');
+        me.hideLoadingOverlay();
+        $('#new_api_request_modal').modal('hide');
+      }
+    });
+  }
+
+  cancelAjaxRequest() {
+    if (this.currentAjaxRequest) {
+      try {
+
+        this.currentAjaxRequest.abort();
+      } catch (e) {
+        this.apiClient.abort();
+      }
     }
+    this.hideLoadingOverlay();
+  }
 
-    openApiRequest(event) {
-        const collectionId = $(event.currentTarget).closest('li').data('collection');
-        const apiId = $(event.currentTarget).closest('li').data('id');
+  openApiRequest(event) {
+    const collectionId = $(event.currentTarget).closest('li').data('collection');
+    const apiId = $(event.currentTarget).closest('li').data('id');
 
-        const collection = this.collections.filter(function (collection) {
-            return collection.id === collectionId;
-        })[0];
-        let selectedApi = collection.apis.filter(function (api) {
-            return api.id === apiId;
-        })[0];
+    const collection = this.collections.filter(function(collection) {
+      return collection.id === collectionId;
+    })[0];
+    let selectedApi = collection.apis.filter(function(api) {
+      return api.id === apiId;
+    })[0];
 
-        if (selectedApi) {
-            selectedApi.collectionId = collectionId;
-            selectedApi.collectionName = collection.name;
-            let tab = this.apiRequests.filter(function (api) {
-                return api.id === selectedApi.id;
-            })[0];
+    if (selectedApi) {
+      selectedApi.collectionId = collectionId;
+      selectedApi.collectionName = collection.name;
+      let tab = this.apiRequests.filter(function(api) {
+        return api.id === selectedApi.id;
+      })[0];
 
-            if (!selectedApi.responseModel) {
-                selectedApi.responseModel = {
-                    status: 0,
-                    time: 0,
-                    size: 0,
-                    headers: [],
-                    body: ''
-                };
-            }
+      if (!selectedApi.responseModel) {
+        selectedApi.responseModel = {
+          status: 0,
+          time: 0,
+          size: 0,
+          headers: [],
+          body: ''
+        };
+      }
 
-            if (tab) {
-                this.currentIndex = this.apiRequests.findIndex(function (api) {
-                    return api.id === selectedApi.id;
-                });
-                this.openTab(selectedApi.id);
-
-            } else {
-                this.apiRequests.push(selectedApi);
-                this.currentIndex = this.apiRequests.length - 1;
-                this.renderTabHeader();
-                this.renderTabContent(this.currentIndex);
-            }
-        }
-    }
-
-    deleteApiRequest(event) {
-        let collectionId = $(event.currentTarget).closest('button').data('collection');
-        let apiId = $(event.currentTarget).closest('.confirm_delete_api').data('id');
-        let apiIndex = this.apiRequests.findIndex(function (api) {
-            return api.id === apiId;
-        });
-        if (apiIndex >= 0) {
-            this.closeTabWithApiIndex(apiIndex);
-        }
-        const me = this;
-        this.currentAjaxRequest = $.ajax({
-            url: this.getAPIDeleteURL(collectionId),
-            type: 'POST',
-            contentType: 'application/json',
-            data: JSON.stringify({id: apiId}),
-            success: function (data) {
-            },
-            error: function (response, textStatus, errorThrown) {
-                $('.toast-body').text(response.responseJSON.error);
-                me.hideLoadingOverlay();
-            },
-            complete: function () {
-                me.hideLoadingOverlay();
-                me.loadCollections();
-                $('#confirm_delete_api_modal').modal('hide');
-            }
+      if (tab) {
+        this.currentIndex = this.apiRequests.findIndex(function(api) {
+          return api.id === selectedApi.id;
         });
+        this.openTab(selectedApi.id);
+
+      } else {
+        this.apiRequests.push(selectedApi);
+        this.currentIndex = this.apiRequests.length - 1;
+        this.renderTabHeader();
+        this.renderTabContent(this.currentIndex);
+      }
     }
+  }
 
-    closeTabWithApiIndex(index) {
-        if (index !== undefined) {
-            const model = this.apiRequests[index];
-            this.apiRequests.splice(index, 1);
-
-            this.requestEditors.splice(index, 1);
-            this.responseEditors.splice(index, 1);
-            this.consoleEditors.splice(index, 1);
-            this.preRequestEditors.splice(index, 1);
-            this.postRequestEditors.splice(index, 1);
-
-            this.renderTabHeader();
-            $(`#api_request_${model.id}`).remove();
-            // $(`#apiRequestTabTitle li:eq(${this.apiRequests.length - 1}) button`).tab('show');
-
-            $(`#apiRequestTabTitle li:last button`).tab('show');
-        }
+  deleteApiRequest(event) {
+    let collectionId = $(event.currentTarget).closest('button').data('collection');
+    let apiId = $(event.currentTarget).closest('.confirm_delete_api').data('id');
+    let apiIndex = this.apiRequests.findIndex(function(api) {
+      return api.id === apiId;
+    });
+    if (apiIndex >= 0) {
+      this.closeTabWithApiIndex(apiIndex);
     }
+    const me = this;
+    this.currentAjaxRequest = $.ajax({
+      url: this.getAPIDeleteURL(collectionId),
+      type: 'POST',
+      contentType: 'application/json',
+      data: JSON.stringify({id: apiId}),
+      success: function(data) {
+      },
+      error: function(response, textStatus, errorThrown) {
+        $('.toast-body').text(response.responseJSON.error);
+        me.hideLoadingOverlay();
+      },
+      complete: function() {
+        me.hideLoadingOverlay();
+        me.loadCollections();
+        $('#confirm_delete_api_modal').modal('hide');
+      }
+    });
+  }
 
-    closeTab(event) {
-        const index = $('#apiRequestTabTitle').children().index($(event.currentTarget).closest('.nav-item'));
-        this.closeTabWithApiIndex(index);
+  closeTabWithApiIndex(index) {
+    if (index !== undefined) {
+      const model = this.apiRequests[index];
+      this.apiRequests.splice(index, 1);
+
+      this.requestEditors.splice(index, 1);
+      this.responseEditors.splice(index, 1);
+      this.consoleEditors.splice(index, 1);
+      this.preRequestEditors.splice(index, 1);
+      this.postRequestEditors.splice(index, 1);
+
+      this.renderTabHeader();
+      $(`#api_request_${model.id}`).remove();
+      // $(`#apiRequestTabTitle li:eq(${this.apiRequests.length - 1}) button`).tab('show');
+
+      $(`#apiRequestTabTitle li:last button`).tab('show');
     }
+  }
+
+  closeTab(event) {
+    const index = $('#apiRequestTabTitle').children().index($(event.currentTarget).closest('.nav-item'));
+    this.closeTabWithApiIndex(index);
+  }
 }
 
 export default APITester;
diff --git a/ApiTestManager/src/LoadTestManager.js b/ApiTestManager/src/LoadTestManager.js
new file mode 100644
index 0000000..ad6c5f6
--- /dev/null
+++ b/ApiTestManager/src/LoadTestManager.js
@@ -0,0 +1,261 @@
+import LoadTester from './components/LoadTester';
+import LoadTestResult from './components/LoadTestResult';
+
+class LoadTestManagerModel {
+  constructor() {
+    this.testList = [];
+    this.scenarios = [];
+  }
+
+  getTestList() {
+    return this.testList;
+  }
+
+  getScenarioList() {
+    return this.scenarios;
+  }
+}
+
+class LoadTestManagerView {
+  constructor(model, controller) {
+    this.model = model;
+    this.controller = controller;
+  }
+
+  render(element) {
+    this.element = element;
+    this.element.innerHTML = `<div></div>`;
+  }
+
+  testListTemplate(test) {
+    return `
+        <li class="d-flex justify-content-between " data-id="${test.id}">
+            <a href="#" class="d-inline-flex align-items-center rounded open_load_test">${test.name}</a>
+            <div class="d-flex justify-content-between">
+                <button class="p-1 reset-button delete_load_test"><i class="fa fa-trash-can"></i></button>
+            </div>
+        </li>
+        `;
+  }
+
+  renderTestList() {
+    const testList = this.model.getTestList();
+    let testListHtml = testList.map((test) => this.testListTemplate(test)).join('');
+    $('.load_test_list').html(testListHtml);
+    let nodes = document.querySelectorAll('.load_test_list li');
+    nodes.forEach((node) => {
+      if (this.controller.currentTest !== null && $(node).data('id') === this.controller.currentTest.id) {
+        node.classList.add('selected');
+      }
+    });
+  }
+}
+
+class LoadTestManagerController {
+  constructor(contextPath, model, testResult) {
+    this.contextPath = contextPath;
+    this.model = model;
+    this.view = new LoadTestManagerView(this.model, this);
+    this.testResult = testResult;
+  }
+
+  async init(element) {
+    console.log('LoadTestManagerController.init() called');
+    await this.loadScenarioList();
+    this.currentTest = new LoadTester(this.contextPath, this.model.scenarios);
+    this.currentTest.init(document.getElementById('load-tester-view'));
+    this.view.render(element);
+    this.bindEvents();
+    await this.loadTestList();
+  }
+
+  showLoadingOverlay() {
+    $('#loading-overlay').show();
+  }
+
+  hideLoadingOverlay() {
+    $('#loading-overlay').hide();
+  }
+
+  getLoadTestListURL() {
+    return this.contextPath + 'mgmt/load_test/list.do';
+  }
+
+  getLoadTestCreateURL() {
+    return this.contextPath + 'mgmt/load_test/create.do';
+  }
+
+  getLoadTestUpdateURL() {
+    return this.contextPath + 'mgmt/load_test/update.do';
+  }
+
+  getLoadTestDeleteURL() {
+    return this.contextPath + 'mgmt/load_test/delete.do';
+  }
+
+  openTest(event) {
+    console.log('openTest');
+    let testId = $(event.target).closest('li').data('id');
+    document.querySelectorAll('.load_test_list li').forEach((node) => {
+      node.classList.remove('selected');
+    });
+    document.querySelector(`.load_test_list li[data-id="${testId}"]`).classList.add('selected');
+
+    let currentTestModel = this.model.getTestList().find((test) => test.id === testId);
+    this.currentTest.openLoadTest(currentTestModel);
+    this.testResult.showResult(testId);
+  }
+
+  showNewTestModal() {
+    $('#new_load_test_modal').find('input').val('');
+    $('#new_load_test_modal').modal('show');
+  }
+
+  showDeleteModal(event) {
+    const id = $(event.currentTarget).closest('li').data('id');
+    $('#confirm_delete_modal').find('.confirm_delete_load_test').data('id', id);
+    $('#confirm_delete_modal').modal('show');
+  }
+
+  async loadTestList(callback) {
+    this.showLoadingOverlay();
+    const response = await fetch(this.getLoadTestListURL(), {
+      method: 'GET', headers: {
+        'Content-Type': 'application/json', 'X-XSRF-TOKEN': $('meta[name="_csrf"]').attr('content')
+      }
+    });
+    this.model.testList = await response.json();
+    this.view.renderTestList();
+    this.hideLoadingOverlay();
+  }
+
+  async loadScenarioList() {
+    const response = await fetch(this.contextPath + 'mgmt/api_scenario/list.do', {
+      method: 'GET', headers: {
+        'Content-Type': 'application/json', 'X-XSRF-TOKEN': $('meta[name="_csrf"]').attr('content')
+      }
+    });
+    this.model.scenarios = await response.json();
+  }
+
+  createLoadTest() {
+    const testName = $('#new_load_test_modal').find('input').val();
+    if (testName) {
+      const me = this;
+      me.showLoadingOverlay();
+      this.currentAjaxRequest = $.ajax({
+        url: this.getLoadTestCreateURL(),
+        type: 'POST',
+        contentType: 'application/json',
+        data: JSON.stringify({name: testName}),
+        success: function(data) {
+          me.loadTestList(() => {
+          });
+        },
+        error: function(response, textStatus, errorThrown) {
+          me.hideLoadingOverlay();
+          $('.toast-body').text(response.responseJSON.error);
+          $('.toast').toast('show');
+        },
+        complete: function() {
+          me.hideLoadingOverlay();
+          $('#new_load_test_modal').modal('hide');
+        }
+      });
+    }
+  }
+
+  saveLoadTest() {
+    if (this.currentTest !== null) {
+
+      const me = this;
+      me.showLoadingOverlay();
+      this.currentAjaxRequest = $.ajax({
+        url: this.getLoadTestUpdateURL(),
+        type: 'POST',
+        contentType: 'application/json',
+        data: JSON.stringify(this.currentTest.getLoadTest()),
+        error: function(response, textStatus, errorThrown) {
+          me.hideLoadingOverlay();
+          $('.toast-body').text(response.responseJSON.error);
+          $('.toast').toast('show');
+        },
+        complete: function() {
+          me.hideLoadingOverlay();
+          $('.toast-body').text('저장되었습니다.');
+          $('.toast').toast('show');
+        }
+      });
+    }
+  }
+
+  removeLoadTest(event) {
+    const id = $(event.currentTarget).data('id');
+    const me = this;
+    me.showLoadingOverlay();
+    this.currentAjaxRequest = $.ajax({
+      url: this.getLoadTestDeleteURL(),
+      type: 'POST',
+      contentType: 'application/json',
+      data: JSON.stringify({id: id}),
+      error: function(response, textStatus, errorThrown) {
+        me.hideLoadingOverlay();
+        $('.toast-body').text(response.responseJSON.error);
+        $('.toast').toast('show');
+      },
+      complete: function() {
+        me.hideLoadingOverlay();
+        $('#confirm_delete_modal').modal('hide');
+        $('.toast-body').text('삭제되었습니다.');
+        $('.toast').toast('show');
+        me.loadTestList(() => {
+          if (me.model.getTestList().length > 0) {
+            //me.openT(me.getScenarioList()[0].id);
+          }
+        });
+      }
+    });
+  }
+
+  resetLoadTest() {
+    this.testResult.reset();
+  }
+
+  showTestReport() {
+    this.testResult.showTestRpeort();
+  }
+
+  bindEvents() {
+    const events = [
+      {type: 'click', selector: '#new_load_test', action: this.showNewTestModal.bind(this)},
+      {type: 'click', selector: '.create_load_test', action: this.createLoadTest.bind(this)},
+      {type: 'click', selector: '.save_load_test', action: this.saveLoadTest.bind(this)},
+      {type: 'click', selector: '.reset_load_test', action: this.resetLoadTest.bind(this)},
+      {type: 'click', selector: '.show_test_report', action: this.showTestReport.bind(this)},
+      {type: 'click', selector: '.delete_load_test', action: this.showDeleteModal.bind(this)},
+      {type: 'click', selector: '.open_load_test', action: this.openTest.bind(this)},
+      {type: 'click', selector: '.confirm_delete_load_test', action: this.removeLoadTest.bind(this)}];
+
+    for (let event of events) {
+      $(document).on(event.type, event.selector, event.action);
+    }
+  }
+}
+
+class LoadTestManager {
+  constructor(contextPath) {
+    this.contextPath = contextPath;
+    this.model = new LoadTestManagerModel();
+    this.testResult = new LoadTestResult(this.contextPath, document.getElementById('load-tester-result-view'));
+    this.testResult.init();
+    this.controller = new LoadTestManagerController(this.contextPath, this.model, this.testResult);
+  }
+
+  init() {
+    console.log('LoadTestManager.init() called');
+    let element = document.getElementById('load_test_menubar');
+    this.controller.init(element);
+  }
+}
+
+export default LoadTestManager;
diff --git a/ApiTestManager/src/components/EditableInput.js b/ApiTestManager/src/components/EditableInput.js
index dda21df..04487e9 100644
--- a/ApiTestManager/src/components/EditableInput.js
+++ b/ApiTestManager/src/components/EditableInput.js
@@ -16,9 +16,9 @@ class EditableInputModel {
 }
 
 class EditableInputView {
-    constructor(model, editableInput) {
+    constructor(model, controller) {
         this.model = model;
-        this.editableInput = editableInput;
+        this.controller = controller;
     }
 
     render(element) {
@@ -39,9 +39,9 @@ class EditableInputView {
 
     attachEventListeners() {
         this.editableDiv.addEventListener('input', (event) => {
-            this.editableInput.controller.handleInput(this.editableDiv);
-            if (this.editableInput.controller.additionalCallback) {
-                this.editableInput.controller.additionalCallback(this.model.getValue());
+            this.controller.handleInput(this.editableDiv);
+            if (this.controller.additionalCallback) {
+                this.controller.additionalCallback(this.model.getValue());
             }
         });
     }
@@ -99,9 +99,9 @@ class EditableInputView {
 
 
 class EditableInputController {
-    constructor(model, view) {
+    constructor(model) {
         this.model = model;
-        this.view = view;
+        this.view = new EditableInputView(this.model, this);
     }
 
     init(element, callback) {
@@ -208,16 +208,17 @@ class EditableInputController {
         selection.removeAllRanges();
         selection.addRange(range);
     }
+
+    updateUI() {
+        this.view.updateUI();
+    }
 }
 
 class EditableInput {
     constructor(options = {}) {
         // Initialize the model with the value
         this.model = new EditableInputModel(options.value || '');
-
-        // Create the view and controller, passing the model to them
-        this.view = new EditableInputView(this.model, this);
-        this.controller = new EditableInputController(this.model, this.view);
+        this.controller = new EditableInputController(this.model);
 
         // Additional properties as required
         this.name = options.name || '';
@@ -239,7 +240,7 @@ class EditableInput {
     setValue(newValue) {
         // Delegate to the model and update the view
         this.model.setValue(newValue);
-        this.view.updateUI();
+        this.controller.updateUI();
     }
 
     // Any additional methods required for interaction with this component
diff --git a/ApiTestManager/src/components/LoadTestResult.js b/ApiTestManager/src/components/LoadTestResult.js
new file mode 100644
index 0000000..e1846ae
--- /dev/null
+++ b/ApiTestManager/src/components/LoadTestResult.js
@@ -0,0 +1,117 @@
+import {Stomp} from '@stomp/stompjs';
+import SockJS from 'sockjs-client';
+import LoadTestResultList from './LoadTestResultList';
+import LoadTestResultDetail from './LoadTestResultDetail';
+
+class LoadTestResultModel {
+  constructor(testId) {
+    this.testId = testId;
+  }
+}
+
+class LoadTestResultView {
+  constructor(model, element, controller) {
+    this.element = element;
+    this.model = model;
+    this.controller = controller;
+
+    this.testResultListElement = document.createElement('div');
+    this.testResultListElement.id = 'loadTestResultList';
+    this.testResultListElement.style.width = '250px';
+    this.testResultListElement.style.border = '1px solid #e0e0e0';
+    this.testResultListElement.style.padding = '5px';
+    this.testResultListElement.style.overflow = 'hidden';
+    this.testResultListElement.style.height = `${window.innerHeight - 160}px`;
+    this.testResultListElement.style.maxHeight = '100%';
+    this.testResultListElement.classList.add('load-test-result-container');
+    this.element.appendChild(this.testResultListElement);
+
+    this.testResultDetailElement = document.createElement('div');
+    this.testResultDetailElement.id = 'loadTestResultDetail';
+    this.testResultDetailElement.style.width = 'calc(100% - 250px)';
+    this.testResultDetailElement.style.border = '1px solid #e0e0e0';
+    this.testResultDetailElement.classList.add('load-test-result-detail');
+    this.testResultDetailElement.style.display = 'flex';
+    this.testResultDetailElement.style.height = `${window.innerHeight - 160}px`;
+    this.testResultDetailElement.style.maxHeight = '100%'; //it seems not working
+    this.element.appendChild(this.testResultDetailElement);
+  }
+
+  resize() {
+    this.testResultListElement.style.height = `${window.innerHeight - 160}px`;
+    this.testResultDetailElement.style.height = `${window.innerHeight - 160}px`;
+  }
+}
+
+class LoadTestResultController {
+  constructor(contextPath, element, model) {
+    this.contextPath = contextPath || '/';
+    this.model = model;
+    this.view = new LoadTestResultView(this.model, element, this);
+    this.subscription = null;
+    this.loadTestResultList = null;
+  }
+
+  init() {
+    console.log('LoadTestResultController init');
+    //initialize websocket
+    this.socket = new SockJS(this.contextPath + 'load-test-result');
+    this.client = Stomp.over(this.socket);
+    this.client.connect({}, () => {
+      console.log('connected');
+    });
+    this.client.activate();
+    this.bindEvents();
+  }
+
+  bindEvents() {
+    window.addEventListener('resize', this.resize.bind(this));
+  }
+
+  resize() {
+    this.view.resize();
+  }
+
+  showResult(testId) {
+    if (this.subscription) {
+      this.subscription.unsubscribe();
+      this.subscription = null; // Clear the subscription after unsubscribing
+    }
+    this.model.testId = testId;
+    this.subscription = this.client.subscribe(`/topic/${this.model.testId}`, (message) => {
+      this.loadTestResultList.addTestResult(JSON.parse(message.body));
+    });
+  }
+}
+
+class LoadTestResult {
+  constructor(contextPath, element) {
+    this.contextPath = contextPath || '/';
+    this.element = element;
+  }
+
+  init() {
+    this.model = new LoadTestResultModel();
+    this.controller = new LoadTestResultController(this.contextPath, this.element, this.model);
+    this.controller.init();
+    this.view = this.controller.view;
+    this.loadTestResultDetail = new LoadTestResultDetail(this.contextPath, this.view.testResultDetailElement);
+    this.loadTestResultList = new LoadTestResultList(this.contextPath, this.view.testResultListElement, this.loadTestResultDetail);
+    this.controller.loadTestResultList = this.loadTestResultList;
+  }
+
+  showResult(testId) {
+    this.controller.showResult(testId);
+  }
+
+  reset() {
+    this.loadTestResultList.reset();
+    this.loadTestResultDetail.reset();
+  }
+
+  showTestReport() {
+    //show test report modal
+  }
+}
+
+export default LoadTestResult;
diff --git a/ApiTestManager/src/components/LoadTestResultDetail.js b/ApiTestManager/src/components/LoadTestResultDetail.js
new file mode 100644
index 0000000..88a9333
--- /dev/null
+++ b/ApiTestManager/src/components/LoadTestResultDetail.js
@@ -0,0 +1,117 @@
+import * as monaco from 'monaco-editor';
+
+class LoadTestResultDetailModel {
+  constructor() {
+    this.testResult = null;
+  }
+
+}
+
+class LoadTestResultDetailView {
+  constructor(element, model, controller) {
+    this.element = element;
+    this.editorContainer = document.createElement('div');
+    this.editorContainer.style.flex = '1';
+    this.element.appendChild(this.editorContainer);
+
+    this.model = model;
+    this.controller = controller;
+    this.outputEditor = monaco.editor.create(this.editorContainer, {
+      value: '',
+      automaticLayout: true,
+      quickSuggestions: false
+    });
+  }
+}
+
+class LoadTestResultDetailController {
+  constructor(element, model) {
+    this.element = element;
+    this.model = model;
+    this.view = new LoadTestResultDetailView(element, model, this);
+  }
+
+  showDetail(result) {
+    this.view.outputEditor.setValue('');
+    this.logHttpRequest(result.request);
+    this.logHttpResponse(result.response);
+  }
+
+  reset(){
+    this.view.outputEditor.setValue('');
+  }
+
+  appendLog(text) {
+    var range = new monaco.Range(this.view.outputEditor.getModel().getLineCount(), 1, this.view.outputEditor.getModel().getLineCount(), 1);
+    var id = {major: 1, minor: 1};
+    var op = {identifier: id, range: range, text: text + '\n\n', forceMoveMarkers: true};
+    this.view.outputEditor.executeEdits('my-source', [op]);
+  }
+
+  logHttpRequest(request) {
+    console.log({request});
+    let log = `[API Request]\n${request.method} ${request.path} HTTP/1.1\n[Request Headers]\n${this.parseRequestHeaders(request.headers)}\n[Request Body]\n${request.requestBody}`;
+    this.appendLog(log);
+  }
+
+  logHttpResponse(response) {
+    console.log({response});
+    let log = `[Response]\nHTTP/1.1 ${response.status}\n[Response Headers]\n${this.parseHeaders(response.headers)}\n[Response Body]\n${response.body}\n`;
+    this.appendLog(log);
+  }
+
+  parseRequestHeaders(headers) {
+    let parsedHeaders = '';
+    headers.forEach(header => {
+      if (header.enabled) {
+        parsedHeaders += `${header.key}: ${header.value}\n`;
+      }
+    });
+
+    return parsedHeaders;
+  }
+
+  parseHeaders(headers) {
+    let parsedHeaders = '';
+    headers.forEach(header => {
+      parsedHeaders += `${header.key}: ${header.value}\n`;
+    });
+    return parsedHeaders;
+  }
+
+  resizeEditor() {
+    //FIXME: 창 크기 변경시 자동으로 editor 크기가 조정되지 않아서, 0으로 강제 변경후 다시 layout() 호출
+    this.view.outputEditor.layout({
+      width: 0
+    });
+    this.view.outputEditor.layout({});
+
+  }
+
+  init() {
+    this.bindEvents();
+  }
+
+  bindEvents() {
+    window.addEventListener('resize', this.resizeEditor.bind(this));
+  }
+}
+
+class LoadTestResultDetail {
+  constructor(contextPath, element) {
+    this.contextPath = contextPath || '/';
+    this.model = new LoadTestResultDetailModel();
+    this.controller = new LoadTestResultDetailController(element, this.model);
+    this.controller.init();
+  }
+
+  showDetail(result) {
+    this.controller.showDetail(result);
+  }
+
+  reset() {
+    this.controller.reset();
+  }
+}
+
+export default LoadTestResultDetail;
diff --git a/ApiTestManager/src/components/LoadTestResultList.js b/ApiTestManager/src/components/LoadTestResultList.js
new file mode 100644
index 0000000..3ef3c25
--- /dev/null
+++ b/ApiTestManager/src/components/LoadTestResultList.js
@@ -0,0 +1,102 @@
+class LoadTestResultListModel {
+  constructor() {
+    this.testResults = [];
+  }
+}
+
+class LoadTestResultListView {
+  constructor(element, model, controller) {
+    this.element = element;
+    const ul = document.createElement('ul');
+    ul.style.overflowY = 'scroll';
+    ul.style.padding = '0';
+    ul.style.height = 'inherit';
+    ul.style.maxHeight = '100%';
+    this.element.appendChild(ul);
+    this.model = model;
+    this.controller = controller;
+  }
+
+  addTestResult(result) {
+    const ul = this.element.querySelector('ul');
+    const li = document.createElement('li');
+    li.style.border = '1px solid #e0e0e0';
+    li.style.marginBottom = '5px';
+    li.style.padding = '4px';
+    li.textContent = result.request.name; // Assuming `result` is a string or has a `.toString()` method that returns a meaningful representation
+
+    li.addEventListener('click', () =>{
+      const allLi = ul.querySelectorAll('li');
+      allLi.forEach(li => {
+        li.classList.remove('selected');
+      });
+
+      // Add "selected" class to the clicked li
+      li.classList.add('selected');
+      this.controller.showDetail(result);
+    } );
+
+    ul.appendChild(li);
+  }
+}
+
+class LoadTestResultListController {
+  constructor(model, element, detail) {
+    this.model = model;
+    this.view = new LoadTestResultListView(element, model, this);
+    this.detail = detail;
+  }
+
+  init() {
+    this.bindEvents();
+  }
+
+  showDetail(result) {
+    this.detail.showDetail(result);
+  }
+
+  bindEvents() {
+    const events = [
+      // {type: 'click'}
+    ];
+
+    for (let event of events) {
+      $(document).off(event.type, event.selector).on(event.type, event.selector, event.action);
+    }
+  }
+
+  addTestResult(result) {
+    this.model.testResults.push(result);
+    this.view.addTestResult(result);
+  }
+
+  reset() {
+    this.model.testResults = [];
+    this.view.element.querySelector('ul').innerHTML = '';
+  }
+}
+
+class LoadTestResultList {
+
+  constructor(contextPath, element, detail) {
+    this.contextPath = contextPath || '/';
+    this.model = new LoadTestResultListModel();
+    this.detail = detail;
+    this.controller = new LoadTestResultListController(this.model, element, detail);
+  }
+
+  init() {
+    this.controller.init();
+  }
+
+  addTestResult(result) {
+    this.controller.addTestResult(result);
+  }
+
+  reset() {
+    this.controller.reset();
+  }
+}
+
+export default LoadTestResultList;
+
diff --git a/ApiTestManager/src/components/LoadTester.js b/ApiTestManager/src/components/LoadTester.js
new file mode 100644
index 0000000..7ba9dcd
--- /dev/null
+++ b/ApiTestManager/src/components/LoadTester.js
@@ -0,0 +1,179 @@
+class LoadTestModel {
+  constructor(loadTest) {
+    this.scenarios = [];
+
+    if (loadTest) {
+      this.loadTest = loadTest;
+    } else {
+      this.loadTest = {
+        scenarioId: null, threadCount: 1, loopCount: 0, rampUpTime: 0, duration: 0, testData: null
+      };
+    }
+  }
+
+  getScenarioList() {
+    return this.scenarios;
+  }
+}
+
+class LoadTestView {
+  constructor(model, controller) {
+    this.model = model;
+    this.controller = controller;
+  }
+
+  renderScenarioList() {
+    const scenarioList = this.model.getScenarioList();
+    return `<div class="form-floating me-2" style="width: 250px; height: 60px;">
+                <select class="form-select" name="scenarioId">
+                  <option value="" selected>시나리오 선택</option>
+                  ${scenarioList.map(s => `<option value="${s.id}" ${s.id === this.model.loadTest.scenarioId ? 'selected' : ''}>${s.name}</option>`).join('')}
+                </select>
+                <label for="scenario_list">시나리오 선택</label>
+            </div>`;
+  }
+
+  render(element) {
+    this.element = element;
+
+    // Assuming the container's HTML is defined here as before
+    const html = `
+            ${this.renderScenarioList()}
+            <div class="form-floating me-2" style="width: 100px; height: 60px;">
+                <input type="number" class="form-control" name="user_count" min="1" value="${this.model.loadTest.threadCount}">
+                <label for="user_count">사용자 수</label>
+            </div>
+            <div class="form-floating me-2" style="width: 90px; height: 60px;">
+                <input type="number" class="form-control" name="repeat_count" min="0" value="${this.model.loadTest.loopCount}">
+                <label for="repeat_count">반복 횟수</label>
+            </div>
+            <div class="form-floating me-2" style="width: 130px; height: 60px;">
+                <input type="number" class="form-control" name="ramp_up" min="0" value="${this.model.loadTest.rampUpTime}">
+                <label for="ramp_up">ramp-up (ms)</label>
+            </div>
+            <div class="form-floating me-2" style="width: 120px; height: 60px;">
+                <input type="number" class="form-control" name="duration" min="0" value="${this.model.loadTest.duration}">
+                <label for="duration">수행 시간(분)</label>
+            </div>
+            <button type="button" class="btn btn-primary me-2 start_test" style="height: 60px;">시작</button>
+            <button type="button" class="btn btn-primary me-2 stop_test" style="height: 60px;">정지</button>
+            <button type="button" class="btn btn-primary me-2 save_load_test" style="height: 60px;">저장</button>
+            <button type="button" class="btn btn-primary me-2 reset_load_test" style="height: 60px;">초기화</button>
+<!--            <button type="button" class="btn btn-primary me-2 show_test_report" style="height: 60px;">통계</button>-->
+        `;
+
+    this.element.innerHTML = html;
+    console.log('LoadTestView.render() called');
+  }
+
+  updateView() {
+    document.querySelector('select[name="scenarioId"]').value = this.model.loadTest.scenarioId || '';
+    document.querySelector('input[name="user_count"]').value = this.model.loadTest.threadCount || 1;
+    document.querySelector('input[name="repeat_count"]').value = this.model.loadTest.loopCount || 0;
+    document.querySelector('input[name="ramp_up"]').value = this.model.loadTest.rampUpTime || 0;
+    document.querySelector('input[name="duration"]').value = this.model.loadTest.duration || 0;
+  }
+}
+
+
+class LoadTestController {
+  constructor(contextPath, model) {
+    this.contextPath = contextPath || '/';
+    this.model = model;
+    this.view = new LoadTestView(this.model, this);
+  }
+
+  getStartLoadTestUrl() {
+    return this.contextPath + 'startLoadTest';
+  }
+
+  getStopLoadTestUrl() {
+    return this.contextPath + 'stopLoadTest';
+  }
+
+  init(element) {
+    // Initialize the view
+    this.view.render(element);
+  }
+
+  startTest() {
+    this.updateLoadTest();
+    return fetch(this.getStartLoadTestUrl(), {
+      method: 'POST',
+      body: JSON.stringify(this.model.loadTest),
+      headers: {
+        'Content-Type': 'application/json',
+        'X-XSRF-TOKEN': $('meta[name="_csrf"]').attr('content')
+      }
+    });
+  }
+
+  stopTest() {
+    return fetch(this.getStopLoadTestUrl(), {
+      method: 'POST',
+      body: JSON.stringify(this.model.loadTest),
+      headers: {
+        'Content-Type': 'application/json',
+        'X-XSRF-TOKEN': $('meta[name="_csrf"]').attr('content')
+      }
+    });
+  }
+
+  updateLoadTest() {
+    this.model.loadTest.scenarioId = document.querySelector('select[name="scenarioId"]').value;
+    this.model.loadTest.threadCount = document.querySelector('input[name="user_count"]').value;
+    this.model.loadTest.loopCount = document.querySelector('input[name="repeat_count"]').value;
+    this.model.loadTest.rampUpTime = document.querySelector('input[name="ramp_up"]').value;
+    this.model.loadTest.duration = document.querySelector('input[name="duration"]').value;
+  }
+
+  showLoadTest(loadTest) {
+    this.model.loadTest = loadTest;
+    this.view.updateView();
+  }
+
+}
+
+class LoadTester {
+  constructor(contextPath, scenarios) {
+    this.contextPath = contextPath || '/';
+    this.model = new LoadTestModel();
+
+    if (scenarios) {
+      this.model.scenarios = scenarios;
+    } else {
+      this.model.scenarios = [];
+    }
+    this.controller = new LoadTestController(this.contextPath, this.model);
+
+  }
+
+  init(element) {
+    this.controller.init(element);
+    this.bindEvents();
+  }
+
+  bindEvents() {
+    const events = [
+      {type: 'click', selector: '.start_test', action: this.controller.startTest.bind(this.controller)},
+      {type: 'click', selector: '.stop_test', action: this.controller.stopTest.bind(this.controller)}
+    ];
+
+    for (let event of events) {
+      $(document).off(event.type, event.selector).on(event.type, event.selector, event.action);
+    }
+    console.log('LoadTester.bindEvents() called');
+  }
+
+  getLoadTest() {
+    //set current value from input
+    this.controller.updateLoadTest();
+    return this.model.loadTest;
+  }
+
+  openLoadTest(loadTest) {
+    this.controller.showLoadTest(loadTest);
+  }
+}
+
+export default LoadTester;
diff --git a/ApiTestManager/src/components/PerformanceTable.js b/ApiTestManager/src/components/PerformanceTable.js
new file mode 100644
index 0000000..663ae2f
--- /dev/null
+++ b/ApiTestManager/src/components/PerformanceTable.js
@@ -0,0 +1,10 @@
+const column = [
+  {name: 'name', type: 'text', label: '이름'},
+  {name: 'numberOfSamples', type: 'text', label: '#'},
+  {name: 'average', type: 'text', label: '평균'},
+  {name: 'min', type: 'text', label: '최소'},
+  {name: 'max', type: 'text', label: '최대'},
+  {name: 'errorRate', type: 'text', label: '에러 %'},
+  {name: 'throughput', type: 'text', label: 'Throughput'}
+];
+
diff --git a/ApiTestManager/src/components/PropertyTable.js b/ApiTestManager/src/components/PropertyTable.js
index 07b16d7..1480495 100644
--- a/ApiTestManager/src/components/PropertyTable.js
+++ b/ApiTestManager/src/components/PropertyTable.js
@@ -23,9 +23,9 @@ class PropertyTableModel {
 }
 
 class PropertyTableView {
-    constructor(model, propertyTable) {
+    constructor(model, controller) {
         this.model = model;
-        this.propertyTable = propertyTable;
+        this.controller = controller;
         this.modelViewList = [];
     }
 
@@ -138,9 +138,9 @@ class PropertyTableView {
 
 
 class PropertyTableController {
-    constructor(model, view) {
+    constructor(model) {
         this.model = model;
-        this.view = view;
+        this.view = new PropertyTableView(this.model);
     }
 
     init(element, callback) {
@@ -176,18 +176,16 @@ class PropertyTableController {
             properties[index][key] = value;
         }
     }
+
+    updateUI() {
+        this.view.updateUI();
+    }
 }
 
 class PropertyTable {
     constructor(options = {}) {
-        // Initialize the model with properties
         this.model = new PropertyTableModel(options.properties || []);
-
-        // Create the view and controller, passing the model to them
-        this.view = new PropertyTableView(this.model, this);
-        this.controller = new PropertyTableController(this.model, this.view);
-
-        // Additional properties
+        this.controller = new PropertyTableController(this.model);
         this.propertyName = options.propertyName || '';
     }
 
@@ -205,7 +203,7 @@ class PropertyTable {
     setProperties(newProperties) {
         // Update the model and refresh the view
         this.model.setProperties(newProperties);
-        this.view.updateUI();
+        this.controller.updateUI();
     }
 
     addProperty(property) {
diff --git a/ApiTestManager/src/components/table/Columns.js b/ApiTestManager/src/components/table/Columns.js
new file mode 100644
index 0000000..60a1828
--- /dev/null
+++ b/ApiTestManager/src/components/table/Columns.js
@@ -0,0 +1,61 @@
+class Column {
+  constructor(name, label, style = {}) {
+    this.name = name;
+    this.label = label;
+    this.style = style;
+  }
+
+  // Method to convert style object to string; can be overridden or extended
+  styleToString() {
+    return Object.entries(this.style).map(([key, value]) => `${key}: ${value};`).join(' ');
+  }
+
+  // Render header cell (th)
+  renderHeader() {
+    const th = document.createElement('th');
+    th.textContent = this.name;
+    // Apply styles
+    Object.entries(this.style).forEach(([key, value]) => {
+      th.style[key] = value;
+    });
+    return th;
+  }
+
+  // Render data cell (td)
+  renderCell(data) {
+    const td = document.createElement('td');
+    td.textContent = data;
+    // Apply styles
+    Object.entries(this.style).forEach(([key, value]) => {
+      td.style[key] = value;
+    });
+    return td;
+  }
+}
+
+class NumberColumn extends Column {
+  constructor(header) {
+    super(header, {'text-align': 'right'}); // Default style for number columns
+  }
+}
+
+class Columns {
+  constructor(columnJson) {
+    this.columns = columnJson.map(def => {
+      let style = def.style || {};
+      switch (def.type) {
+        case 'number':
+          return new NumberColumn(def.name, def.label || def.name, style);
+        case 'text':
+        default:
+          return new Column(def.name, def.label || def.name, style);
+      }
+    });
+  }
+
+  getColumns() {
+    return this.columns;
+  }
+}
+
+export default Columns;
diff --git a/ApiTestManager/src/components/table/Table.js b/ApiTestManager/src/components/table/Table.js
new file mode 100644
index 0000000..8f27a09
--- /dev/null
+++ b/ApiTestManager/src/components/table/Table.js
@@ -0,0 +1,91 @@
+import Columns from './Columns';
+
+class TableModel {
+  constructor(columns, rows) {
+    this.columns = columns; // Array of Columns objects
+    this.rows = rows;
+  }
+
+  updateRows(newRows) {
+    this.rows = newRows;
+  }
+}
+
+class TableView {
+  constructor(model) {
+    this.model = model;
+    this.table = document.createElement('table');
+    this.table.style.border = '1px solid black';
+    this.tbody = document.createElement('tbody'); // Keep tbody as a member for updates
+    this.table.appendChild(this.renderTableHeader());
+    this.table.appendChild(this.tbody); // Append tbody to the table
+  }
+
+  render() {
+    this.renderTableBody(); // Initial rendering of the table body
+    return this.table;
+  }
+
+  renderTableHeader() {
+    const thead = document.createElement('thead');
+    const tr = document.createElement('tr');
+    thead.appendChild(tr);
+
+    this.model.columns.getColumns().forEach(column => {
+      tr.appendChild(column.renderHeader());
+    });
+
+    return thead;
+  }
+
+  renderTableBody() {
+    // Clear existing tbody content
+    while (this.tbody.firstChild) {
+      this.tbody.removeChild(this.tbody.firstChild);
+    }
+
+    // Populate tbody with new rows
+    this.model.rows.forEach(row => {
+      const tr = document.createElement('tr');
+      this.model.columns.getColumns().forEach(column => {
+        tr.appendChild(column.renderCell(row[column.header]));
+      });
+      this.tbody.appendChild(tr);
+    });
+  }
+}
+
+class TableController {
+  constructor(model) {
+    this.model = model;
+    this.view = new TableView(this.model);
+  }
+
+  updateView() {
+    const tableDiv = document.getElementById('tableDiv');
+    // Clear the previous table view
+    while (tableDiv.firstChild) {
+      tableDiv.removeChild(tableDiv.firstChild);
+    }
+    tableDiv.appendChild(this.view.render());
+  }
+
+  updateRows(newRows) {
+    this.model.updateRows(newRows);
+    this.view.renderTableBody(); // Re-render the table body
+  }
+}
+
+class Table {
+  constructor(columnJson) {
+    const columns = new Columns(columnJson);
+    this.model = new TableModel(columns, []);
+    this.controller = new TableController(this.model);
+  }
+
+  updateRows(data) {
+    this.controller.updateRows(data);
+  }
+}
+
+export default Table;
diff --git a/ApiTestManager/src/index.js b/ApiTestManager/src/index.js
index d4c4ed6..df9d765 100644
--- a/ApiTestManager/src/index.js
+++ b/ApiTestManager/src/index.js
@@ -1,39 +1,52 @@
 import APITester from './APITester';
-import APIScenario from "./APIScenario";
+import APIScenario from './APIScenario';
+import LoadTestManager from './LoadTestManager';
 
 window.MonacoEnvironment = {
-    getWorkerUrl: function (moduleId, label) {
-        let contextPath = document.querySelector('meta[name="context-path"]').getAttribute('content');
-        if (!contextPath) {
-            contextPath = '/';
-        }
-        if (!contextPath.endsWith('/')) {
-            contextPath += '/';
-        }
-
-        if (label === 'json') {
-            return contextPath + 'plugins/apitestmanager/json.worker.bundle.js';
-        }
-        if (label === 'css' || label === 'scss' || label === 'less') {
-            return contextPath + 'plugins/apitestmanager/css.worker.bundle.js';
-        }
-        if (label === 'html' || label === 'handlebars' || label === 'razor') {
-            return contextPath + 'plugins/apitestmanager/html.worker.bundle.js';
-        }
-        if (label === 'typescript' || label === 'javascript') {
-            return contextPath + 'plugins/apitestmanager/ts.worker.bundle.js';
-        }
-        return contextPath +  'plugins/apitestmanager/editor.worker.bundle.js';
+  getWorkerUrl: function(moduleId, label) {
+    let contextPath = document.querySelector(
+        'meta[name="context-path"]').getAttribute('content');
+    if (!contextPath) {
+      contextPath = '/';
     }
+
+    if (!contextPath.endsWith('/')) {
+      contextPath += '/';
+    }
+
+    if (label === 'json') {
+      return contextPath + 'plugins/apitestmanager/json.worker.bundle.js';
+    }
+    if (label === 'css' || label === 'scss' || label === 'less') {
+      return contextPath + 'plugins/apitestmanager/css.worker.bundle.js';
+    }
+    if (label === 'html' || label === 'handlebars' || label === 'razor') {
+      return contextPath + 'plugins/apitestmanager/html.worker.bundle.js';
+    }
+    if (label === 'typescript' || label === 'javascript') {
+      return contextPath + 'plugins/apitestmanager/ts.worker.bundle.js';
+    }
+    return contextPath + 'plugins/apitestmanager/editor.worker.bundle.js';
+  }
 };
 
 export default class APITestManager {
 
-    constructor(servers, options = {}) {
-        this.apiTester = new APITester(options.contextPath);
-        this.apiTester.init(servers);
-        this.apiScenario = new APIScenario(this.apiTester, options.contextPath);
-        this.apiScenario.init();
+  constructor(options = {}) {
+    if (options.type === undefined) {
+      options.type = 'api';
     }
 
+    if (options.type === 'api') {
+      this.apiTester = new APITester(options.contextPath);
+      this.apiTester.init(options.servers);
+      this.apiScenario = new APIScenario(this.apiTester, options.contextPath);
+      this.apiScenario.init();
+    } else if (options.type === 'load') {
+      this.loadTesterManager = new LoadTestManager(options.contextPath);
+      this.loadTesterManager.init();
+    }
+
+  }
+
 }
diff --git a/ApiTestManager/webpack.config.js b/ApiTestManager/webpack.config.js
index 4418da0..13ce448 100644
--- a/ApiTestManager/webpack.config.js
+++ b/ApiTestManager/webpack.config.js
@@ -22,6 +22,14 @@ module.exports = {
                     }
                 }
             },
+            {
+                test: /\.less$/,
+                use: [
+                    'style-loader', // Creates `style` nodes from JS strings
+                    'css-loader',   // Translates CSS into CommonJS
+                    'less-loader'   // Compiles Less to CSS
+                ]
+            },
             {
                 test: /\.css$/,
                 use: ['style-loader', 'css-loader']
diff --git a/src/main/java/com/eactive/testmaster/client/dto/ApiRequestDTO.java b/src/main/java/com/eactive/testmaster/client/dto/ApiRequestDTO.java
index 35a057a..27d9978 100644
--- a/src/main/java/com/eactive/testmaster/client/dto/ApiRequestDTO.java
+++ b/src/main/java/com/eactive/testmaster/client/dto/ApiRequestDTO.java
@@ -1,10 +1,13 @@
 package com.eactive.testmaster.client.dto;
 
+import java.io.Serializable;
 import javax.validation.constraints.NotNull;
 import java.util.ArrayList;
 import java.util.List;
 
-public class ApiRequestDTO {
+public class ApiRequestDTO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
 
     private String id;
 
@@ -28,6 +31,8 @@ public class ApiRequestDTO {
 
     private String postRequestScript;
 
+    private long sentBytes; //estimated size of the request
+
     public String getId() {
         return id;
     }
@@ -115,4 +120,12 @@ public class ApiRequestDTO {
     public void setPostRequestScript(String postRequestScript) {
         this.postRequestScript = postRequestScript;
     }
+
+    public long getSentBytes() {
+        return sentBytes;
+    }
+
+    public void setSentBytes(long sentBytes) {
+        this.sentBytes = sentBytes;
+    }
 }
diff --git a/src/main/java/com/eactive/testmaster/client/dto/ApiRequestKeyValueDTO.java b/src/main/java/com/eactive/testmaster/client/dto/ApiRequestKeyValueDTO.java
index 62f2bf5..c5d6f07 100644
--- a/src/main/java/com/eactive/testmaster/client/dto/ApiRequestKeyValueDTO.java
+++ b/src/main/java/com/eactive/testmaster/client/dto/ApiRequestKeyValueDTO.java
@@ -1,12 +1,23 @@
 package com.eactive.testmaster.client.dto;
 
-public class ApiRequestKeyValueDTO {
+import java.io.Serializable;
+
+public class ApiRequestKeyValueDTO implements Serializable {
+
+    private static final long serialVersionUID = 1L;
 
     private boolean enabled;
 
     private String key;
     private String value;
 
+
+    public ApiRequestKeyValueDTO(boolean enabled, String key, String value) {
+        this.enabled = enabled;
+        this.key = key;
+        this.value = value;
+    }
+
     public boolean isEnabled() {
         return enabled;
     }
diff --git a/src/main/java/com/eactive/testmaster/client/dto/internal/ScenarioConnection.java b/src/main/java/com/eactive/testmaster/client/dto/internal/ScenarioConnection.java
new file mode 100644
index 0000000..f644673
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/client/dto/internal/ScenarioConnection.java
@@ -0,0 +1,32 @@
+package com.eactive.testmaster.client.dto.internal;
+
+public class ScenarioConnection {
+
+    private String node;
+    private String input;
+    private String output;
+
+    public String getNode() {
+        return node;
+    }
+
+    public void setNode(String node) {
+        this.node = node;
+    }
+
+    public String getInput() {
+        return input;
+    }
+
+    public void setInput(String input) {
+        this.input = input;
+    }
+
+    public String getOutput() {
+        return output;
+    }
+
+    public void setOutput(String output) {
+        this.output = output;
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/client/dto/internal/ScenarioConnections.java b/src/main/java/com/eactive/testmaster/client/dto/internal/ScenarioConnections.java
new file mode 100644
index 0000000..bf935cd
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/client/dto/internal/ScenarioConnections.java
@@ -0,0 +1,17 @@
+package com.eactive.testmaster.client.dto.internal;
+
+import java.util.List;
+
+public class ScenarioConnections {
+
+    private List<ScenarioConnection> connections;
+
+    public List<ScenarioConnection> getConnections() {
+        return connections;
+    }
+
+    public void setConnections(List<ScenarioConnection> connections) {
+        this.connections = connections;
+    }
+
+}
diff --git a/src/main/java/com/eactive/testmaster/client/dto/internal/ScenarioNode.java b/src/main/java/com/eactive/testmaster/client/dto/internal/ScenarioNode.java
new file mode 100644
index 0000000..1aeafca
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/client/dto/internal/ScenarioNode.java
@@ -0,0 +1,109 @@
+package com.eactive.testmaster.client.dto.internal;
+
+import com.eactive.testmaster.client.dto.ApiRequestDTO;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+public class ScenarioNode  {
+
+    private String id;
+    private String name;
+    private Map<String, String> data;
+
+    @JsonProperty("class")
+    private String className;
+
+    private String html;
+    private Map<String, ScenarioConnections> inputs;
+    private Map<String, ScenarioConnections> outputs;
+
+    private List<ScenarioNode> connections;
+
+    private ApiRequestDTO apiRequest;
+
+    public ScenarioNode() {
+
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Map<String, String> getData() {
+        return data;
+    }
+
+    public void setData(Map<String, String> data) {
+        this.data = data;
+    }
+
+    public String getClassName() {
+        return className;
+    }
+
+    public void setClassName(String className) {
+        this.className = className;
+    }
+
+    public String getHtml() {
+        return html;
+    }
+
+    public void setHtml(String html) {
+        this.html = html;
+    }
+
+    public Map<String, ScenarioConnections> getInputs() {
+        return inputs;
+    }
+
+    public void setInputs(Map<String, ScenarioConnections> inputs) {
+        this.inputs = inputs;
+    }
+
+    public Map<String, ScenarioConnections> getOutputs() {
+        return outputs;
+    }
+
+    public void setOutputs(Map<String, ScenarioConnections> outputs) {
+        this.outputs = outputs;
+    }
+
+    public List<ScenarioNode> getConnections() {
+        return connections;
+    }
+
+    public void setConnections(List<ScenarioNode> connections) {
+        this.connections = connections;
+    }
+
+    public void addNode(ScenarioNode node) {
+        if (this.connections == null)
+            this.connections = new ArrayList<>();
+
+        this.connections.add(node);
+    }
+
+    public ApiRequestDTO getApiRequest() {
+        return apiRequest;
+    }
+
+    public void setApiRequest(ApiRequestDTO apiRequest) {
+        this.apiRequest = apiRequest;
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/client/mapper/ApiRequestMapper.java b/src/main/java/com/eactive/testmaster/client/mapper/ApiRequestMapper.java
index 7961990..1e326fb 100644
--- a/src/main/java/com/eactive/testmaster/client/mapper/ApiRequestMapper.java
+++ b/src/main/java/com/eactive/testmaster/client/mapper/ApiRequestMapper.java
@@ -4,10 +4,12 @@ import com.eactive.testmaster.client.dto.ApiCollectionDTO;
 import com.eactive.testmaster.client.dto.ApiRequestDTO;
 import com.eactive.testmaster.client.entity.ApiCollection;
 import com.eactive.testmaster.client.entity.ApiRequestInfo;
+import com.eactive.testmaster.client.repository.ApiRequestRepository;
 import com.eactive.testmaster.common.mapper.CommonMapper;
 import com.eactive.testmaster.server.mapper.ServerMapper;
 import org.mapstruct.Mapper;
 import org.mapstruct.ReportingPolicy;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 import java.util.List;
@@ -17,17 +19,25 @@ import java.util.List;
         uses = {CommonMapper.class, ServerMapper.class},
         unmappedTargetPolicy = ReportingPolicy.IGNORE)
 @Component
-public interface ApiRequestMapper {
-    ApiCollection map(ApiCollectionDTO dto);
+public abstract class ApiRequestMapper {
 
-    ApiRequestInfo map(ApiRequestDTO dto);
+    @Autowired
+    private ApiRequestRepository apiRequestRepository;
 
+    public abstract ApiCollection map(ApiCollectionDTO dto);
 
-    ApiRequestDTO map(ApiRequestInfo entity);
+    public abstract ApiRequestInfo map(ApiRequestDTO dto);
 
+    public abstract ApiRequestDTO map(ApiRequestInfo entity);
 
+    public ApiRequestInfo map(String id) {
+        if(id == null) {
+            return null;
+        }
+        return apiRequestRepository.findById(id).orElseThrow(() -> new IllegalArgumentException("No ApiRequest found for ID: " + id));
+    }
 
-    List<ApiRequestInfo> mapApis(List<ApiRequestDTO> apis);
+    public abstract List<ApiRequestInfo> mapApis(List<ApiRequestDTO> apis);
 
-    List<ApiCollectionDTO> mapCollections(List<ApiCollection> apis);
+    public abstract List<ApiCollectionDTO> mapCollections(List<ApiCollection> apis);
 }
diff --git a/src/main/java/com/eactive/testmaster/client/mapper/ApiScenarioHelper.java b/src/main/java/com/eactive/testmaster/client/mapper/ApiScenarioHelper.java
new file mode 100644
index 0000000..96f08b1
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/client/mapper/ApiScenarioHelper.java
@@ -0,0 +1,20 @@
+package com.eactive.testmaster.client.mapper;
+
+import com.eactive.testmaster.client.entity.ApiScenario;
+import com.eactive.testmaster.client.repository.ApiScenarioRepository;
+import org.springframework.stereotype.Component;
+
+@Component
+public class ApiScenarioHelper {
+
+    private final ApiScenarioRepository apiScenarioRepository;
+
+    public ApiScenarioHelper(ApiScenarioRepository apiScenarioRepository) {
+        this.apiScenarioRepository = apiScenarioRepository;
+    }
+
+    public ApiScenario getApiScenarioById(String id) {
+        // Assuming the repository has a method findById that returns an Optional<ApiScenario>
+        return apiScenarioRepository.findById(id).orElseThrow(() -> new IllegalArgumentException("No ApiScenario found for ID: " + id));
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/client/mapper/ApiScenarioMapper.java b/src/main/java/com/eactive/testmaster/client/mapper/ApiScenarioMapper.java
index 7e9f38d..a1aa416 100644
--- a/src/main/java/com/eactive/testmaster/client/mapper/ApiScenarioMapper.java
+++ b/src/main/java/com/eactive/testmaster/client/mapper/ApiScenarioMapper.java
@@ -2,20 +2,39 @@ package com.eactive.testmaster.client.mapper;
 
 import com.eactive.testmaster.client.dto.ApiScenarioDTO;
 import com.eactive.testmaster.client.entity.ApiScenario;
+import com.eactive.testmaster.client.repository.ApiScenarioRepository;
+import org.mapstruct.Context;
 import org.mapstruct.Mapper;
 import org.mapstruct.ReportingPolicy;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 import java.util.List;
 
-@Mapper(componentModel = "spring",
-        unmappedTargetPolicy = ReportingPolicy.IGNORE)
+@Mapper(componentModel = "spring", unmappedTargetPolicy = ReportingPolicy.IGNORE)
 @Component
-public interface ApiScenarioMapper {
+public abstract class ApiScenarioMapper {
 
-    ApiScenario map(ApiScenarioDTO dto);
+    @Autowired
+    private ApiScenarioRepository apiScenarioRepository;
 
-    ApiScenarioDTO map(ApiScenario scenario);
+    public abstract ApiScenario map(ApiScenarioDTO dto);
 
-    List<ApiScenarioDTO> toDtoList(List<ApiScenario> scenarios);
+    public abstract ApiScenarioDTO map(ApiScenario scenario);
+
+    public ApiScenario map(String id) {
+        if(id == null) {
+            return null;
+        }
+        return apiScenarioRepository.findById(id).orElseThrow(() -> new IllegalArgumentException("No ApiScenario found for ID: " + id));
+    }
+
+    public String mapToId(ApiScenario scenario) {
+        if(scenario == null) {
+            return null;
+        }
+        return scenario.getId();
+    }
+
+    public abstract List<ApiScenarioDTO> toDtoList(List<ApiScenario> scenarios);
 }
diff --git a/src/main/java/com/eactive/testmaster/client/service/HttpHandler.java b/src/main/java/com/eactive/testmaster/client/service/HttpHandler.java
index 77bd34a..8fbc845 100644
--- a/src/main/java/com/eactive/testmaster/client/service/HttpHandler.java
+++ b/src/main/java/com/eactive/testmaster/client/service/HttpHandler.java
@@ -52,9 +52,7 @@ public class HttpHandler extends SimpleChannelInboundHandler<FullHttpResponse> {
     public List<ApiRequestKeyValueDTO> convertHttpHeadersToList(HttpHeaders headers) {
         List<ApiRequestKeyValueDTO> headerList = new ArrayList<>();
         for (Map.Entry<String, String> entry : headers.entries()) {
-            ApiRequestKeyValueDTO header = new ApiRequestKeyValueDTO();
-            header.setKey(entry.getKey());
-            header.setValue(entry.getValue());
+            ApiRequestKeyValueDTO header = new ApiRequestKeyValueDTO(true, entry.getKey(), entry.getValue());
             headerList.add(header);
         }
 
diff --git a/src/main/java/com/eactive/testmaster/client/service/NettyApiClient.java b/src/main/java/com/eactive/testmaster/client/service/NettyApiClient.java
index a78c8a8..a320a69 100644
--- a/src/main/java/com/eactive/testmaster/client/service/NettyApiClient.java
+++ b/src/main/java/com/eactive/testmaster/client/service/NettyApiClient.java
@@ -21,6 +21,8 @@ import io.netty.handler.ssl.SslContextBuilder;
 import io.netty.handler.ssl.util.InsecureTrustManagerFactory;
 import io.netty.util.CharsetUtil;
 import org.apache.commons.lang3.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
@@ -29,12 +31,12 @@ import java.util.concurrent.CompletableFuture;
 
 @Service
 public class NettyApiClient {
+    private static final Logger logger = LoggerFactory.getLogger(NettyApiClient.class);
 
     @Autowired
     ServerRepository serverRepository;
 
-    public CompletableFuture<ApiResponse> handleRequest(ApiRequestDTO originalRequest) {
-        ApiRequestDTO apiRequest = originalRequest;
+    public CompletableFuture<ApiResponse> handleRequest(ApiRequestDTO apiRequest) {
         Server server = serverRepository.findById(apiRequest.getServer()).orElseThrow(() -> new ServerNotFoundException("Server not found"));
         String host = server.getHostname();
         int port = server.getPort();
@@ -92,6 +94,8 @@ public class NettyApiClient {
                 request.headers().add(customHeaders);
             }
 
+            apiRequest.setSentBytes(request.toString().length());
+
             ch.writeAndFlush(request);
             ch.closeFuture().sync();
         } catch (Exception e) {
diff --git a/src/main/java/com/eactive/testmaster/common/mapper/CommonMapper.java b/src/main/java/com/eactive/testmaster/common/mapper/CommonMapper.java
index da8b8c9..e7336f0 100644
--- a/src/main/java/com/eactive/testmaster/common/mapper/CommonMapper.java
+++ b/src/main/java/com/eactive/testmaster/common/mapper/CommonMapper.java
@@ -14,7 +14,7 @@ import java.util.List;
 import java.util.stream.Collectors;
 
 @Mapper(componentModel = "spring",
-        unmappedTargetPolicy = ReportingPolicy.IGNORE)
+    unmappedTargetPolicy = ReportingPolicy.IGNORE)
 public class CommonMapper {
 
     public String map(boolean value) {
@@ -22,17 +22,23 @@ public class CommonMapper {
     }
 
     public boolean map(String value) {
-        if (value == null) return false;
+        if (value == null) {
+            return false;
+        }
         return value.equals("Y");
     }
 
     public String map(List<String> values) {
-        if (values == null) return "";
+        if (values == null) {
+            return "";
+        }
         return String.join(",", values);
     }
 
     public List<String> toList(String value) {
-        if (StringUtils.hasLength(value)) return new ArrayList<>();
+        if (StringUtils.hasLength(value)) {
+            return new ArrayList<>();
+        }
 
         return Arrays.asList(value.split(","));
     }
@@ -44,7 +50,9 @@ public class CommonMapper {
     }
 
     public String mapKeyValue(List<ApiRequestKeyValueDTO> list) {
-        if (list == null) return "";
+        if (list == null) {
+            return "";
+        }
         StringBuilder result = new StringBuilder();
         for (ApiRequestKeyValueDTO dto : list) {
             result.append(dto.toString()).append("||");
@@ -58,22 +66,19 @@ public class CommonMapper {
     public List<ApiRequestKeyValueDTO> keyValueToList(String keyValue) {
         List<ApiRequestKeyValueDTO> list = new ArrayList<>();
 
-        if (!StringUtils.hasLength(keyValue)) return list;
+        if (!StringUtils.hasLength(keyValue)) {
+            return list;
+        }
 
         String[] pairs = keyValue.split("\\|\\|");
         for (String pair : pairs) {
-            ApiRequestKeyValueDTO dto = new ApiRequestKeyValueDTO();
-            if (pair.startsWith("//")) {
-                dto.setEnabled(false);
+            boolean isEnabled = pair.startsWith("//");
+            if (isEnabled) {
                 pair = pair.substring(2);
-            } else {
-                dto.setEnabled(true);
             }
             String[] keyValueArray = pair.split("::");
             if (keyValueArray.length == 2) {
-                dto.setKey(keyValueArray[0]);
-                dto.setValue(keyValueArray[1]);
-                list.add(dto);
+                list.add(new ApiRequestKeyValueDTO(isEnabled, keyValueArray[0], keyValueArray[1]));
             }
         }
         return list;
diff --git a/src/main/java/com/eactive/testmaster/config/ServletConfig.java b/src/main/java/com/eactive/testmaster/config/ServletConfig.java
index 154c421..91d55a0 100644
--- a/src/main/java/com/eactive/testmaster/config/ServletConfig.java
+++ b/src/main/java/com/eactive/testmaster/config/ServletConfig.java
@@ -9,20 +9,21 @@ import org.springframework.context.annotation.Configuration;
 
 @Configuration
 public class ServletConfig {
-	@Value("${server.port.http}")
-	private int serverPortHttp;
 
-	@Bean
-	public ServletWebServerFactory serverFactory() {
-		TomcatServletWebServerFactory tomcat = new TomcatServletWebServerFactory();
-		tomcat.addAdditionalTomcatConnectors(createStandardConnector());
-		return tomcat;
-	}
+    @Value("${server.port.http}")
+    private int serverPortHttp;
 
-	private Connector createStandardConnector() {
-		Connector connector = new Connector("org.apache.coyote.http11.Http11NioProtocol");
-		connector.setPort(serverPortHttp);
-		return connector;
-	}
+    @Bean
+    public ServletWebServerFactory serverFactory() {
+        TomcatServletWebServerFactory tomcat = new TomcatServletWebServerFactory();
+        tomcat.addAdditionalTomcatConnectors(createStandardConnector());
+        return tomcat;
+    }
+
+    private Connector createStandardConnector() {
+        Connector connector = new Connector("org.apache.coyote.http11.Http11NioProtocol");
+        connector.setPort(serverPortHttp);
+        return connector;
+    }
 
 }
diff --git a/src/main/java/com/eactive/testmaster/config/WebSocketStompConfig.java b/src/main/java/com/eactive/testmaster/config/WebSocketStompConfig.java
new file mode 100644
index 0000000..bb47865
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/config/WebSocketStompConfig.java
@@ -0,0 +1,48 @@
+package com.eactive.testmaster.config;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.messaging.simp.config.ChannelRegistration;
+import org.springframework.messaging.simp.config.MessageBrokerRegistry;
+import org.springframework.messaging.simp.stomp.StompHeaderAccessor;
+import org.springframework.messaging.support.ChannelInterceptor;
+import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker;
+import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
+import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer;
+
+@Configuration
+@EnableWebSocketMessageBroker
+public class WebSocketStompConfig implements WebSocketMessageBrokerConfigurer {
+
+    @Override
+    public void registerStompEndpoints(StompEndpointRegistry registry) {
+        registry.addEndpoint("/load-test-result").withSockJS();
+    }
+
+
+    @Override
+    public void configureMessageBroker(MessageBrokerRegistry registry) {
+        registry.enableSimpleBroker("/topic");
+        registry.setApplicationDestinationPrefixes("/app");
+    }
+    @Override
+    public void configureClientInboundChannel(ChannelRegistration registration) {
+        registration.interceptors(new ChannelInterceptor() {
+            @Override
+            public void postSend(org.springframework.messaging.Message<?> message, org.springframework.messaging.MessageChannel channel, boolean sent) {
+                StompHeaderAccessor accessor = StompHeaderAccessor.wrap(message);
+                switch (accessor.getCommand()) {
+                    case CONNECT:
+                        // Log or handle session connect
+                        System.out.println("STOMP Connect [sessionId: " + accessor.getSessionId() + "]");
+                        break;
+                    case DISCONNECT:
+                        // Log or handle session disconnect
+                        System.out.println("STOMP Disconnect [sessionId: " + accessor.getSessionId() + "]");
+                        break;
+                    default:
+                        break;
+                }
+            }
+        });
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/controller/LoadTestController.java b/src/main/java/com/eactive/testmaster/loadtest/controller/LoadTestController.java
new file mode 100644
index 0000000..ea9c7d2
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/controller/LoadTestController.java
@@ -0,0 +1,31 @@
+package com.eactive.testmaster.loadtest.controller;
+
+import com.eactive.testmaster.loadtest.dto.LoadTestDTO;
+import com.eactive.testmaster.loadtest.service.LoadTestService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Scope;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@Scope("session")
+public class LoadTestController {
+
+    @Autowired
+    private LoadTestService loadTestService;
+
+    @PostMapping("/startLoadTest")
+    public ResponseEntity<String> startLoadTest(@RequestBody LoadTestDTO loadTestDTO) {
+        loadTestService.startLoadTest(loadTestDTO);
+        return ResponseEntity.ok("Load Test Started");
+    }
+
+    //stop
+    @PostMapping("/stopLoadTest")
+    public ResponseEntity<String> stopLoadTest(@RequestBody LoadTestDTO loadTestDTO) {
+        loadTestService.stopLoadTest(loadTestDTO.getId());
+        return ResponseEntity.ok("Load Test Stopped");
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/controller/LoadTestMgmtController.java b/src/main/java/com/eactive/testmaster/loadtest/controller/LoadTestMgmtController.java
new file mode 100644
index 0000000..d4977dd
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/controller/LoadTestMgmtController.java
@@ -0,0 +1,62 @@
+package com.eactive.testmaster.loadtest.controller;
+
+import com.eactive.testmaster.common.util.SecurityUtil;
+import com.eactive.testmaster.loadtest.dto.LoadTestDTO;
+import com.eactive.testmaster.loadtest.entity.LoadTest;
+import com.eactive.testmaster.loadtest.mapper.LoadTestMapper;
+import com.eactive.testmaster.loadtest.service.LoadTestMgmtService;
+import com.eactive.testmaster.user.entity.StaffUser;
+import com.eactive.testmaster.user.service.UserService;
+import java.util.List;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/mgmt/load_test")
+public class LoadTestMgmtController {
+
+    private final LoadTestMgmtService loadTestMgmtService;
+
+    private final LoadTestMapper loadTestMapper;
+
+    private final UserService userService;
+
+    public LoadTestMgmtController(LoadTestMgmtService loadTestMgmtService, LoadTestMapper loadTestMapper, UserService userService) {
+        this.loadTestMgmtService = loadTestMgmtService;
+        this.loadTestMapper = loadTestMapper;
+        this.userService = userService;
+    }
+
+    @GetMapping("/list.do")
+    public ResponseEntity<List<LoadTestDTO>> list() {
+        List<LoadTest> list = loadTestMgmtService.findAll();
+        return ResponseEntity.ok(loadTestMapper.toDtoList(list));
+    }
+
+    @PostMapping("/create.do")
+    public ResponseEntity<LoadTestDTO> createScenario(@RequestBody LoadTestDTO loadTestDto) {
+        LoadTest loadTest = loadTestMapper.map(loadTestDto);
+        StaffUser user = userService.findByEsntlId(SecurityUtil.getCurrentUserEsntlId());
+        loadTest.setOwner(user);
+        LoadTest createdScenario = loadTestMgmtService.createLoadTest(loadTest);
+        return new ResponseEntity<>(loadTestMapper.map(createdScenario), HttpStatus.CREATED);
+    }
+
+    @PostMapping("/update.do")
+    public ResponseEntity<LoadTestDTO> updateScenario(@RequestBody LoadTestDTO loadTestDTO) {
+        LoadTest updatedLoadTest = loadTestMapper.map(loadTestDTO);
+        LoadTest updatedScenario = loadTestMgmtService.updateLoadTest(loadTestDTO.getId(), updatedLoadTest);
+        return ResponseEntity.ok(loadTestMapper.map(updatedScenario));
+    }
+
+    @PostMapping("/delete.do")
+    public ResponseEntity<Void> deleteScenario(@RequestBody LoadTestDTO loadTestDto) {
+        loadTestMgmtService.deleteLoadTest(loadTestDto.getId());
+        return ResponseEntity.ok().build();
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/controller/LoadTestPageController.java b/src/main/java/com/eactive/testmaster/loadtest/controller/LoadTestPageController.java
new file mode 100644
index 0000000..ccf0f42
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/controller/LoadTestPageController.java
@@ -0,0 +1,15 @@
+package com.eactive.testmaster.loadtest.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.ModelMap;
+import org.springframework.web.bind.annotation.GetMapping;
+
+
+@Controller
+public class LoadTestPageController {
+
+    @GetMapping("/mgmt/load_tester.do")
+    public String testView(ModelMap model) {
+        return "page/tester/loadTester";
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/dto/ApiRequestEvent.java b/src/main/java/com/eactive/testmaster/loadtest/dto/ApiRequestEvent.java
new file mode 100644
index 0000000..1057412
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/dto/ApiRequestEvent.java
@@ -0,0 +1,22 @@
+package com.eactive.testmaster.loadtest.dto;
+
+public class ApiRequestEvent {
+    private String testId;
+    private LoadTestRequestAndResponse requestAndResponse;
+
+    public String getTestId() {
+        return testId;
+    }
+
+    public void setTestId(String testId) {
+        this.testId = testId;
+    }
+
+    public LoadTestRequestAndResponse getRequestAndResponse() {
+        return requestAndResponse;
+    }
+
+    public void setRequestAndResponse(LoadTestRequestAndResponse requestAndResponse) {
+        this.requestAndResponse = requestAndResponse;
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/dto/LoadTestDTO.java b/src/main/java/com/eactive/testmaster/loadtest/dto/LoadTestDTO.java
new file mode 100644
index 0000000..282ede0
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/dto/LoadTestDTO.java
@@ -0,0 +1,111 @@
+package com.eactive.testmaster.loadtest.dto;
+
+
+import com.eactive.testmaster.client.entity.ApiScenario;
+import com.eactive.testmaster.user.entity.StaffUser;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+
+public class LoadTestDTO {
+
+    private String id;
+
+    private String name;
+
+    private String description;
+
+    private String scenarioId;
+
+    private int threadCount; //min 1
+
+    private int loopCount; //0 means infinite
+
+    private int rampUpTime; //in milliseconds
+
+    private int duration; //in minutes
+
+    private String status; //Running, Completed, Stopped, Waiting
+
+    private String testData; //csv format, first row is header
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public String getScenarioId() {
+        return scenarioId;
+    }
+
+    public void setScenarioId(String scenarioId) {
+        this.scenarioId = scenarioId;
+    }
+
+    public int getThreadCount() {
+        return threadCount;
+    }
+
+    public void setThreadCount(int threadCount) {
+        this.threadCount = threadCount;
+    }
+
+    public int getLoopCount() {
+        return loopCount;
+    }
+
+    public void setLoopCount(int loopCount) {
+        this.loopCount = loopCount;
+    }
+
+    public int getRampUpTime() {
+        return rampUpTime;
+    }
+
+    public void setRampUpTime(int rampUpTime) {
+        this.rampUpTime = rampUpTime;
+    }
+
+    public int getDuration() {
+        return duration;
+    }
+
+    public void setDuration(int duration) {
+        this.duration = duration;
+    }
+
+    public String getStatus() {
+        return status;
+    }
+
+    public void setStatus(String status) {
+        this.status = status;
+    }
+
+    public String getTestData() {
+        return testData;
+    }
+
+    public void setTestData(String testData) {
+        this.testData = testData;
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/dto/LoadTestRequestAndResponse.java b/src/main/java/com/eactive/testmaster/loadtest/dto/LoadTestRequestAndResponse.java
new file mode 100644
index 0000000..57529a4
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/dto/LoadTestRequestAndResponse.java
@@ -0,0 +1,44 @@
+package com.eactive.testmaster.loadtest.dto;
+
+import com.eactive.testmaster.client.dto.ApiRequestDTO;
+import com.eactive.testmaster.client.dto.ApiResponse;
+
+public class LoadTestRequestAndResponse {
+
+    private ApiRequestDTO request;
+
+    private ApiResponse response;
+
+    private long responseTime;
+
+
+    public LoadTestRequestAndResponse(ApiRequestDTO request, ApiResponse response, long responseTime) {
+        this.request = request;
+        this.response = response;
+        this.responseTime = responseTime;
+    }
+
+    public ApiRequestDTO getRequest() {
+        return request;
+    }
+
+    public void setRequest(ApiRequestDTO request) {
+        this.request = request;
+    }
+
+    public ApiResponse getResponse() {
+        return response;
+    }
+
+    public void setResponse(ApiResponse response) {
+        this.response = response;
+    }
+
+    public long getResponseTime() {
+        return responseTime;
+    }
+
+    public void setResponseTime(long responseTime) {
+        this.responseTime = responseTime;
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/entity/APILoadTestResult.java b/src/main/java/com/eactive/testmaster/loadtest/entity/APILoadTestResult.java
new file mode 100644
index 0000000..32d993e
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/entity/APILoadTestResult.java
@@ -0,0 +1,26 @@
+package com.eactive.testmaster.loadtest.entity;
+
+import java.util.List;
+import java.util.Map;
+
+public class APILoadTestResult {
+
+    private String testName;
+    private long timestamp;
+    private double averageResponseTime;
+    private double maxResponseTime;
+    private double minResponseTime;
+    private int totalRequests;
+    private double throughput; // requests per second
+    private double errorRate; // percentage of requests that resulted in errors
+    private int concurrentUsers;
+    private double cpuUsagePercentage;
+    private double memoryUsagePercentage;
+    private Map<Integer, Integer> statusCodeDistribution; // HTTP status code -> count
+    private Map<String, Double> percentileResponseTimes; // e.g., "P95" -> 95th percentile response time
+    private double networkIO; // Network I/O usage
+    private double diskIO; // Disk I/O usage
+    private List<String> errors; // List of error messages or types encountered during the test
+
+
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/entity/LoadTest.java b/src/main/java/com/eactive/testmaster/loadtest/entity/LoadTest.java
new file mode 100644
index 0000000..fecc21d
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/entity/LoadTest.java
@@ -0,0 +1,129 @@
+package com.eactive.testmaster.loadtest.entity;
+
+import com.eactive.testmaster.client.entity.ApiScenario;
+import com.eactive.testmaster.user.entity.StaffUser;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "LOAD_TEST")
+public class LoadTest {
+
+    @Id
+    private String id;
+
+    private String name;
+
+    private String description;
+
+    @ManyToOne
+    @JoinColumn(name = "USER_ID")
+    private StaffUser owner;
+
+    @ManyToOne
+    @JoinColumn(name = "API_SCENARIO_ID")
+    private ApiScenario scenario;
+
+    private int threadCount; //min 1
+
+    private int loopCount; //0 means infinite
+
+    private int rampUpTime; //in milliseconds
+
+    private int duration; //in minutes
+
+    private String status; //Running, Completed, Stopped, Waiting
+
+    private String testData; //csv format, first row is header
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public StaffUser getOwner() {
+        return owner;
+    }
+
+    public void setOwner(StaffUser owner) {
+        this.owner = owner;
+    }
+
+    public ApiScenario getScenario() {
+        return scenario;
+    }
+
+    public void setScenario(ApiScenario scenario) {
+        this.scenario = scenario;
+    }
+
+    public int getThreadCount() {
+        return threadCount;
+    }
+
+    public void setThreadCount(int threadCount) {
+        this.threadCount = threadCount;
+    }
+
+    public int getLoopCount() {
+        return loopCount;
+    }
+
+    public void setLoopCount(int loopCount) {
+        this.loopCount = loopCount;
+    }
+
+    public int getRampUpTime() {
+        return rampUpTime;
+    }
+
+    public void setRampUpTime(int rampUpTime) {
+        this.rampUpTime = rampUpTime;
+    }
+
+    public int getDuration() {
+        return duration;
+    }
+
+    public void setDuration(int duration) {
+        this.duration = duration;
+    }
+
+    public String getStatus() {
+        return status;
+    }
+
+    public void setStatus(String status) {
+        this.status = status;
+    }
+
+    public String getTestData() {
+        return testData;
+    }
+
+    public void setTestData(String testData) {
+        this.testData = testData;
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/entity/LoadTestResult.java b/src/main/java/com/eactive/testmaster/loadtest/entity/LoadTestResult.java
new file mode 100644
index 0000000..bb6eb4a
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/entity/LoadTestResult.java
@@ -0,0 +1,74 @@
+package com.eactive.testmaster.loadtest.entity;
+
+import com.eactive.testmaster.client.entity.ApiScenario;
+import java.time.LocalDateTime;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "LOAD_TEST_RESULT")
+public class LoadTestResult {
+
+    @Id
+    private int id;
+
+    @ManyToOne
+    @JoinColumn(name = "USER_ID")
+    private ApiScenario scenario;
+
+    private LocalDateTime startDate;
+    private LocalDateTime endDate;
+    private String status; //Running, Completed, Stopped
+    private String result; // api result in csv format.
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public ApiScenario getScenario() {
+        return scenario;
+    }
+
+    public void setScenario(ApiScenario scenario) {
+        this.scenario = scenario;
+    }
+
+    public LocalDateTime getStartDate() {
+        return startDate;
+    }
+
+    public void setStartDate(LocalDateTime startDate) {
+        this.startDate = startDate;
+    }
+
+    public LocalDateTime getEndDate() {
+        return endDate;
+    }
+
+    public void setEndDate(LocalDateTime endDate) {
+        this.endDate = endDate;
+    }
+
+    public String getStatus() {
+        return status;
+    }
+
+    public void setStatus(String status) {
+        this.status = status;
+    }
+
+    public String getResult() {
+        return result;
+    }
+
+    public void setResult(String result) {
+        this.result = result;
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/mapper/LoadTestMapper.java b/src/main/java/com/eactive/testmaster/loadtest/mapper/LoadTestMapper.java
new file mode 100644
index 0000000..de22093
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/mapper/LoadTestMapper.java
@@ -0,0 +1,27 @@
+package com.eactive.testmaster.loadtest.mapper;
+
+import com.eactive.testmaster.client.mapper.ApiScenarioMapper;
+import com.eactive.testmaster.common.mapper.CommonMapper;
+import com.eactive.testmaster.loadtest.dto.LoadTestDTO;
+import com.eactive.testmaster.loadtest.entity.LoadTest;
+import com.eactive.testmaster.server.mapper.ServerMapper;
+import java.util.List;
+import org.mapstruct.Mapper;
+import org.mapstruct.Mapping;
+import org.mapstruct.ReportingPolicy;
+import org.springframework.stereotype.Component;
+
+@Mapper(componentModel = "spring",
+    uses = {CommonMapper.class, ServerMapper.class, ApiScenarioMapper.class},
+    unmappedTargetPolicy = ReportingPolicy.IGNORE)
+@Component
+public interface LoadTestMapper {
+
+    @Mapping(target = "scenario", source = "scenarioId")
+    LoadTest map(LoadTestDTO dto);
+
+    @Mapping(target = "scenarioId", source = "scenario")
+    LoadTestDTO map(LoadTest entity);
+
+    List<LoadTestDTO> toDtoList(List<LoadTest> list);
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/repository/LoadTestRepository.java b/src/main/java/com/eactive/testmaster/loadtest/repository/LoadTestRepository.java
new file mode 100644
index 0000000..73cc8b9
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/repository/LoadTestRepository.java
@@ -0,0 +1,9 @@
+package com.eactive.testmaster.loadtest.repository;
+
+import com.eactive.testmaster.loadtest.entity.LoadTest;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
+
+public interface LoadTestRepository extends JpaRepository<LoadTest, String>, JpaSpecificationExecutor<LoadTest> {
+
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/repository/LoadTestResultRepository.java b/src/main/java/com/eactive/testmaster/loadtest/repository/LoadTestResultRepository.java
new file mode 100644
index 0000000..81a1f1c
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/repository/LoadTestResultRepository.java
@@ -0,0 +1,5 @@
+package com.eactive.testmaster.loadtest.repository;
+
+public class LoadTestResultRepository {
+
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/service/ApiPerformanceAggregation.java b/src/main/java/com/eactive/testmaster/loadtest/service/ApiPerformanceAggregation.java
new file mode 100644
index 0000000..70dfc5d
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/service/ApiPerformanceAggregation.java
@@ -0,0 +1,33 @@
+package com.eactive.testmaster.loadtest.service;
+
+public class ApiPerformanceAggregation {
+
+    private String apiId;
+
+    private String apiName;
+
+    private long numberOfSamples;
+
+    private double average;
+
+    private double median;
+
+    private double line90;
+
+    private double line95;
+
+    private double line99;
+
+    private double min;
+
+    private double max;
+
+    private double errorRate;
+
+    private double throughput;
+
+    private double receivedKbPerSec;
+
+    private double sentKbPerSec;
+
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/service/ApiPerformanceSummary.java b/src/main/java/com/eactive/testmaster/loadtest/service/ApiPerformanceSummary.java
new file mode 100644
index 0000000..1aeecf5
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/service/ApiPerformanceSummary.java
@@ -0,0 +1,28 @@
+package com.eactive.testmaster.loadtest.service;
+
+public class ApiPerformanceSummary {
+
+    private String apiId;
+
+    private String apiName;
+
+    private long numberOfSamples;
+
+    private double average;
+
+    private double min;
+
+    private double max;
+
+    private double stdDev;
+
+    private double errorRate;
+
+    private double throughput;
+
+    private double receivedKbPerSec;
+
+    private double sentKbPerSec;
+
+    private double avgBytes;
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/service/CallableLoadTestService.java b/src/main/java/com/eactive/testmaster/loadtest/service/CallableLoadTestService.java
new file mode 100644
index 0000000..ae7a82b
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/service/CallableLoadTestService.java
@@ -0,0 +1,87 @@
+package com.eactive.testmaster.loadtest.service;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.PreDestroy;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Scope;
+import org.springframework.messaging.simp.SimpMessagingTemplate;
+import org.springframework.stereotype.Service;
+
+@Service
+@Scope("session")
+public class CallableLoadTestService {
+
+    @Autowired
+    private SimpMessagingTemplate template;
+
+    private ScheduledExecutorService scheduledExecutorService;
+    private List<ScheduledFuture<?>> scheduledFutures;
+
+    public CallableLoadTestService() {
+        this.scheduledFutures = new ArrayList<>();
+    }
+
+    public void sendLoadTestUpdate(String topic, Object update) {
+        template.convertAndSend("/topic/" + topic, update);
+    }
+
+    public void startLoadTest(int numberOfUsers, long rampUpTimeMillis, long taskDurationMillis) {
+        if (scheduledExecutorService != null && !scheduledExecutorService.isShutdown()) {
+            scheduledExecutorService.shutdownNow();
+        }
+        scheduledExecutorService = Executors.newScheduledThreadPool(numberOfUsers);
+
+        for (int i = 0; i < numberOfUsers; i++) {
+            final CallableVirtualUser virtualUser = new CallableVirtualUser(this);
+
+            // Calculate delay for each user to simulate ramp-up
+            long delay = i * rampUpTimeMillis;
+
+            // Schedule the task with the calculated delay
+            ScheduledFuture<?> future = scheduledExecutorService.schedule(() -> {
+                try {
+                    // Execute the user task and wait for its completion or interruption
+                    String result = virtualUser.call();
+                    System.out.println("Task completed with result: " + result);
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+            }, delay, TimeUnit.MILLISECONDS);
+
+            scheduledFutures.add(future);
+
+            // Schedule a stop action for each task after its duration expires
+            scheduledExecutorService.schedule(() -> {
+                if (!future.isDone()) {
+                    future.cancel(true); // Attempt to interrupt the task
+                    System.out.println("Task was cancelled after its duration limit.");
+                }
+            }, delay + taskDurationMillis, TimeUnit.MILLISECONDS);
+        }
+    }
+
+    public void stopLoadTest() {
+        if (scheduledFutures != null) {
+            for (ScheduledFuture<?> future : scheduledFutures) {
+                if (!future.isDone()) {
+                    future.cancel(true); // Attempt to interrupt if running
+                }
+            }
+            scheduledFutures.clear();
+        }
+        if (scheduledExecutorService != null) {
+            scheduledExecutorService.shutdownNow();
+        }
+    }
+
+    @PreDestroy
+    public void cleanup() {
+        stopLoadTest(); // Ensure all tasks are stopped and executor service is shut down
+    }
+}
+
diff --git a/src/main/java/com/eactive/testmaster/loadtest/service/CallableVirtualUser.java b/src/main/java/com/eactive/testmaster/loadtest/service/CallableVirtualUser.java
new file mode 100644
index 0000000..b2bab25
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/service/CallableVirtualUser.java
@@ -0,0 +1,36 @@
+package com.eactive.testmaster.loadtest.service;
+
+import com.eactive.testmaster.loadtest.dto.LoadTestDTO;
+import java.util.Map;
+import java.util.concurrent.Callable;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class CallableVirtualUser implements Callable<String> {
+
+    private static final Logger logger = LoggerFactory.getLogger(VirtualUser.class);
+
+    private final CallableLoadTestService loadTestService;
+
+    private LoadTestDTO loadTest;
+    private Map<String, String> data;
+
+    public CallableVirtualUser(CallableLoadTestService loadTestService) {
+        this.loadTestService = loadTestService;
+    }
+
+    @Override
+    public String call() throws Exception {
+        try {
+            // Simulate user action
+            Thread.sleep(1000); // Replace with actual user action
+            loadTestService.sendLoadTestUpdate(loadTest.getId(), "Virtual user completed");
+            return "Completed";
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt(); // Preserve interrupt status
+            logger.debug("Task interrupted");
+            return "Interrupted";
+        }
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/service/Console.java b/src/main/java/com/eactive/testmaster/loadtest/service/Console.java
new file mode 100644
index 0000000..de52cbf
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/service/Console.java
@@ -0,0 +1,13 @@
+package com.eactive.testmaster.loadtest.service;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class Console {
+
+    private static final Logger logger = LoggerFactory.getLogger(Console.class);
+
+    public void log(String message) {
+        logger.info(message);
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/service/LoadTestGraphBuilder.java b/src/main/java/com/eactive/testmaster/loadtest/service/LoadTestGraphBuilder.java
new file mode 100644
index 0000000..bef312f
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/service/LoadTestGraphBuilder.java
@@ -0,0 +1,179 @@
+package com.eactive.testmaster.loadtest.service;
+
+import com.eactive.testmaster.client.dto.internal.ScenarioNode;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.util.HashMap;
+import java.util.Map;
+
+public class LoadTestGraphBuilder {
+
+    public static ScenarioNode getTopNode(String data) {
+        try {
+            Map<String, ScenarioNode> graphData = loadData(data);
+            return getHead(extractGraphFromStart(graphData));
+        } catch (JsonProcessingException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public static Map<String, ScenarioNode> loadData(String data) throws JsonProcessingException {
+        Map<String, ScenarioNode> graphData;
+        ObjectMapper objectMapper = new ObjectMapper();
+        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
+        graphData = objectMapper.readValue(data, new TypeReference<>() {
+        });
+        return graphData;
+    }
+
+
+
+    public static ScenarioNode getHead(Map<String, ScenarioNode> graphData) {
+        for (ScenarioNode node : graphData.values()) {
+            if ("start".equals(node.getClassName())) {
+                return node;
+            }
+        }
+        return null;
+    }
+
+    public static Map<String, ScenarioNode> extractGraphFromStart(Map<String, ScenarioNode> graphData) {
+        Map<String, ScenarioNode> graph = new HashMap<>();
+
+        // Helper function to recursively build the graph
+        graphData.forEach((nodeId, node) -> {
+            if ("start".equals(node.getClassName())) {
+                buildGraph(nodeId, graph, graphData);
+                return; // Break the forEach loop assuming there's only one start node
+            }
+        });
+
+        return graph;
+    }
+
+    private static void buildGraph(String nodeId, Map<String, ScenarioNode> graph, Map<String, ScenarioNode> graphData) {
+        ScenarioNode node = graphData.get(nodeId);
+        if (node == null || graph.containsKey(nodeId)) {
+            return;
+        }
+
+        graph.put(nodeId, node);
+
+        if (node.getOutputs() != null) {
+            node.getOutputs().values().forEach(outputList -> {
+                outputList.getConnections().forEach(output -> {
+                    ScenarioNode v = graphData.get(output.getNode());
+                    graph.get(nodeId).addNode(v);
+                    buildGraph(output.getNode(), graph, graphData); // Recurse
+                });
+            });
+        }
+    }
+
+    public static void main(String[] args) {
+        try {
+            Map<String, ScenarioNode> graphData = loadData(testData);
+            LoadTestGraphBuilder graphBuilder = new LoadTestGraphBuilder();
+            Map<String, ScenarioNode> graph = graphBuilder.extractGraphFromStart(graphData);
+            ScenarioNode start = graphBuilder.getHead(graph);
+
+            System.out.println(start);
+        } catch (JsonProcessingException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private static String testData = "{\n"
+        + "    \"1\": {\n"
+        + "        \"id\": 1,\n"
+        + "        \"name\": \"Start\",\n"
+        + "        \"data\": {},\n"
+        + "        \"class\": \"start\",\n"
+        + "        \"html\": \"\\n                        <div>\\n                            <div><i class=\\\"fas fa-play\\\"></i> Start </div>\\n                        </div>\\n                    \",\n"
+        + "        \"typenode\": false,\n"
+        + "        \"inputs\": {},\n"
+        + "        \"outputs\": {\n"
+        + "            \"output_1\": {\n"
+        + "                \"connections\": [\n"
+        + "                    {\n"
+        + "                        \"node\": \"2\",\n"
+        + "                        \"output\": \"input_1\"\n"
+        + "                    }\n"
+        + "                ]\n"
+        + "            }\n"
+        + "        },\n"
+        + "        \"pos_x\": 100,\n"
+        + "        \"pos_y\": 100\n"
+        + "    },\n"
+        + "    \"2\": {\n"
+        + "        \"id\": 2,\n"
+        + "        \"name\": \"잔액조회\",\n"
+        + "        \"data\": {\n"
+        + "            \"collection\": \"b9748a16-bbb7-4dcc-8521-88e76a0b2ee8\",\n"
+        + "            \"id\": \"51351280-a72f-4886-8426-70d2932a2f48\",\n"
+        + "            \"index\": \"2\",\n"
+        + "            \"nodeType\": \"api\",\n"
+        + "            \"name\": \"잔액조회\"\n"
+        + "        },\n"
+        + "        \"class\": \"api\",\n"
+        + "        \"html\": \"<div><div class=\\\"title-box\\\">API</div><div class=\\\"box\\\">잔액조회</div></div>\",\n"
+        + "        \"typenode\": false,\n"
+        + "        \"inputs\": {\n"
+        + "            \"input_1\": {\n"
+        + "                \"connections\": [\n"
+        + "                    {\n"
+        + "                        \"node\": \"1\",\n"
+        + "                        \"input\": \"output_1\"\n"
+        + "                    }\n"
+        + "                ]\n"
+        + "            }\n"
+        + "        },\n"
+        + "        \"outputs\": {\n"
+        + "            \"output_1\": {\n"
+        + "                \"connections\": [\n"
+        + "                    {\n"
+        + "                        \"node\": \"3\",\n"
+        + "                        \"output\": \"input_1\"\n"
+        + "                    }\n"
+        + "                ]\n"
+        + "            }\n"
+        + "        },\n"
+        + "        \"pos_x\": 328,\n"
+        + "        \"pos_y\": 184\n"
+        + "    },\n"
+        + "    \"3\": {\n"
+        + "        \"id\": 3,\n"
+        + "        \"name\": \"거래내역조회\",\n"
+        + "        \"data\": {\n"
+        + "            \"collection\": \"b9748a16-bbb7-4dcc-8521-88e76a0b2ee8\",\n"
+        + "            \"id\": \"3f156dc1-f71b-4a26-a778-64a2ddd2b54f\",\n"
+        + "            \"index\": \"3\",\n"
+        + "            \"nodeType\": \"api\",\n"
+        + "            \"name\": \"거래내역조회\"\n"
+        + "        },\n"
+        + "        \"class\": \"api\",\n"
+        + "        \"html\": \"<div><div class=\\\"title-box\\\">API</div><div class=\\\"box\\\">거래내역조회</div></div>\",\n"
+        + "        \"typenode\": false,\n"
+        + "        \"inputs\": {\n"
+        + "            \"input_1\": {\n"
+        + "                \"connections\": [\n"
+        + "                    {\n"
+        + "                        \"node\": \"2\",\n"
+        + "                        \"input\": \"output_1\"\n"
+        + "                    }\n"
+        + "                ]\n"
+        + "            }\n"
+        + "        },\n"
+        + "        \"outputs\": {\n"
+        + "            \"output_1\": {\n"
+        + "                \"connections\": []\n"
+        + "            }\n"
+        + "        },\n"
+        + "        \"pos_x\": 654,\n"
+        + "        \"pos_y\": 301\n"
+        + "    }\n"
+        + "}";
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/service/LoadTestMgmtService.java b/src/main/java/com/eactive/testmaster/loadtest/service/LoadTestMgmtService.java
new file mode 100644
index 0000000..5c6d82d
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/service/LoadTestMgmtService.java
@@ -0,0 +1,52 @@
+package com.eactive.testmaster.loadtest.service;
+
+import com.eactive.testmaster.loadtest.entity.LoadTest;
+import com.eactive.testmaster.loadtest.repository.LoadTestRepository;
+import java.util.List;
+import java.util.UUID;
+import javax.transaction.Transactional;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+@Transactional
+public class LoadTestMgmtService {
+
+    @Autowired
+    LoadTestRepository loadTestRepository;
+
+    public List<LoadTest> findAll() {
+        return loadTestRepository.findAll();
+    }
+
+    public LoadTest createLoadTest(LoadTest loadTest) {
+        loadTest.setId(UUID.randomUUID().toString());
+        return loadTestRepository.save(loadTest);
+    }
+
+    public LoadTest updateLoadTest(String id, LoadTest updatedLoadTest) {
+        return loadTestRepository.findById(id)
+            .map(loadTest -> {
+                loadTest.setName(updatedLoadTest.getName());
+                loadTest.setDescription(updatedLoadTest.getDescription());
+                loadTest.setScenario(updatedLoadTest.getScenario());
+                loadTest.setThreadCount(updatedLoadTest.getThreadCount());
+                loadTest.setLoopCount(updatedLoadTest.getLoopCount());
+                loadTest.setRampUpTime(updatedLoadTest.getRampUpTime());
+                loadTest.setDuration(updatedLoadTest.getDuration());
+                loadTest.setTestData(updatedLoadTest.getTestData());
+
+                return loadTestRepository.save(loadTest);
+            }).orElseGet(() -> {
+                // If the LoadTest with the given id doesn't exist, create a new one
+                updatedLoadTest.setId(id);
+                return loadTestRepository.save(updatedLoadTest);
+            });
+    }
+
+    public void deleteLoadTest(String id) {
+        loadTestRepository.deleteById(id);
+    }
+
+}
+
diff --git a/src/main/java/com/eactive/testmaster/loadtest/service/LoadTestMonitorMap.java b/src/main/java/com/eactive/testmaster/loadtest/service/LoadTestMonitorMap.java
new file mode 100644
index 0000000..de6d326
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/service/LoadTestMonitorMap.java
@@ -0,0 +1,65 @@
+package com.eactive.testmaster.loadtest.service;
+
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ScheduledFuture;
+import javax.annotation.PreDestroy;
+import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
+import org.springframework.stereotype.Component;
+
+@Component
+public class LoadTestMonitorMap {
+
+    private final Map<String, List<ScheduledFuture<?>>> futures = new ConcurrentHashMap<>();
+    private final Map<String, List<VirtualUser>> virtualUsers = new ConcurrentHashMap<>();
+
+    private final Map<String, ThreadPoolTaskScheduler> schedulers = new ConcurrentHashMap<>();
+
+    public void put(String testId, List<ScheduledFuture<?>> futures, List<VirtualUser> users, ThreadPoolTaskScheduler scheduler) {
+        this.futures.put(testId, futures);
+        virtualUsers.put(testId, users);
+        schedulers.put(testId, scheduler);
+    }
+
+    public void remove(String testId) {
+        futures.remove(testId);
+        virtualUsers.remove(testId);
+        schedulers.remove(testId);
+    }
+
+    public ThreadPoolTaskScheduler getScheduler(String testId) {
+        return schedulers.get(testId);
+    }
+
+    public List<ScheduledFuture<?>> getFutures(String testId) {
+        return futures.get(testId);
+    }
+
+    public List<VirtualUser> getVirtualUsers(String testId) {
+        return virtualUsers.get(testId);
+    }
+
+    @PreDestroy
+    public void cleanup() {
+        // Perform cleanup logic here
+        //get all the keys and stop them all
+        futures.keySet().forEach(key -> {
+            List<ScheduledFuture<?>> value = futures.get(key);
+            value.forEach(future -> {
+                future.cancel(true);
+            });
+        });
+
+        virtualUsers.keySet().forEach(key -> {
+            List<VirtualUser> value = virtualUsers.get(key);
+            value.forEach(VirtualUser::stop);
+        });
+
+        schedulers.keySet().forEach(key -> {
+            ThreadPoolTaskScheduler value = schedulers.get(key);
+            value.shutdown();
+        });
+
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/service/LoadTestService.java b/src/main/java/com/eactive/testmaster/loadtest/service/LoadTestService.java
new file mode 100644
index 0000000..e3d0aea
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/service/LoadTestService.java
@@ -0,0 +1,229 @@
+package com.eactive.testmaster.loadtest.service;
+
+import com.eactive.testmaster.client.dto.ApiRequestDTO;
+import com.eactive.testmaster.client.dto.internal.ScenarioNode;
+import com.eactive.testmaster.client.entity.ApiRequestInfo;
+import com.eactive.testmaster.client.entity.ApiScenario;
+import com.eactive.testmaster.client.mapper.ApiRequestMapper;
+import com.eactive.testmaster.client.mapper.ApiScenarioMapper;
+import com.eactive.testmaster.client.service.NettyApiClient;
+import com.eactive.testmaster.loadtest.dto.ApiRequestEvent;
+import com.eactive.testmaster.loadtest.dto.LoadTestDTO;
+import com.eactive.testmaster.loadtest.dto.LoadTestRequestAndResponse;
+import com.lmax.disruptor.RingBuffer;
+import com.lmax.disruptor.dsl.Disruptor;
+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledFuture;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.messaging.simp.SimpMessagingTemplate;
+import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
+import org.springframework.stereotype.Service;
+import org.springframework.web.socket.TextMessage;
+import org.springframework.web.socket.WebSocketSession;
+import org.springframework.web.socket.handler.TextWebSocketHandler;
+
+@Service
+//@Scope("session")
+public class LoadTestService extends TextWebSocketHandler {
+
+    //logger
+    private static final Logger logger = LoggerFactory.getLogger(LoadTestService.class);
+    private static long MINUTE = 10 * 1000L;
+
+    private SimpMessagingTemplate template;
+
+    private LoadTestMonitorMap loadTestMonitorMap;
+
+    private NettyApiClient nettyApiClient;
+
+    private ApiScenarioMapper apiScenarioMapper;
+
+    private ApiRequestMapper apiRequestMapper;
+
+    private final RingBuffer<ApiRequestEvent> ringBuffer;
+
+    public LoadTestService(SimpMessagingTemplate template, LoadTestMonitorMap loadTestMonitorMap, NettyApiClient nettyApiClient, ApiScenarioMapper apiScenarioMapper, ApiRequestMapper apiRequestMapper) {
+        this.template = template;
+        this.loadTestMonitorMap = loadTestMonitorMap;
+        this.nettyApiClient = nettyApiClient;
+        this.apiScenarioMapper = apiScenarioMapper;
+        this.apiRequestMapper = apiRequestMapper;
+
+        Disruptor<ApiRequestEvent> disruptor = new Disruptor<>(ApiRequestEvent::new, 1024, Executors.defaultThreadFactory());
+        disruptor.handleEventsWith(this::processApiRequestEvent);
+        ringBuffer = disruptor.start();
+    }
+
+    private void processApiRequestEvent(ApiRequestEvent event, long sequence, boolean endOfBatch) {
+        LoadTestRequestAndResponse requestAndResponse = event.getRequestAndResponse();
+        String testId = event.getTestId();
+        List<Long> responseTimes = new ArrayList<>();
+        insertSorted(responseTimes, requestAndResponse.getResponseTime());
+
+        template.convertAndSend("/topic/" + testId, requestAndResponse);
+    }
+
+    public static void insertSorted(List<Long> list, long value) {
+        if (list.isEmpty() || value > list.get(list.size() - 1)) {
+            list.add(value);
+            return;
+        }
+
+        int insertionPoint = findInsertionPoint(list, value);
+        list.add(insertionPoint, value);
+    }
+
+    private static int findInsertionPoint(List<Long> list, long value) {
+        int low = 0;
+        int high = list.size() - 1;
+
+        while (low <= high) {
+            int mid = low + (high - low) / 2;
+            if (value == list.get(mid)) {
+                return mid; // Optional: Handle duplicate values as needed
+            } else if (value > list.get(mid)) {
+                low = mid + 1;
+            } else {
+                high = mid - 1;
+            }
+        }
+
+        return low;
+    }
+
+    @Override
+    protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
+        String clientMessage = message.getPayload();
+        System.out.println("Received message: " + clientMessage);
+        session.sendMessage(new TextMessage("Hello from server!"));
+    }
+
+
+    public void sendLoadTestUpdate(String topic, LoadTestRequestAndResponse requestAndResponse) {
+        long sequence = ringBuffer.next();
+        ApiRequestEvent event = ringBuffer.get(sequence);
+        event.setTestId(topic);
+        event.setRequestAndResponse(requestAndResponse);
+        ringBuffer.publish(sequence);
+    }
+
+    public void sendLoadTestError(String topic, String errorMessage) {
+        template.convertAndSend("/topic/" + topic, errorMessage);
+
+    }
+
+    public void startLoadTest(LoadTestDTO loadTestDTO) {
+        int numberOfUsers = loadTestDTO.getThreadCount();
+        int maxCount = loadTestDTO.getLoopCount();
+        long rampUpTimeMillis = loadTestDTO.getRampUpTime();
+        long taskDurationMillis = loadTestDTO.getDuration() * MINUTE;
+        CountDownLatch latch = new CountDownLatch(numberOfUsers);
+
+        ThreadPoolTaskScheduler taskScheduler = new ThreadPoolTaskScheduler();
+        taskScheduler.setPoolSize(numberOfUsers + 1); // Add extra space for cancellation tasks
+        taskScheduler.initialize();
+        ApiScenario apiScenario = apiScenarioMapper.map(loadTestDTO.getScenarioId());
+        ScenarioNode scenario = LoadTestGraphBuilder.getTopNode(apiScenario.getScenario());
+        traverseDFS(scenario);
+
+        List<ScheduledFuture<?>> scheduledFutures = new ArrayList<>();
+        List<VirtualUser> virtualUsers = new ArrayList<>();
+        for (int i = 0; i < numberOfUsers; i++) {
+            final VirtualUser virtualUser = new VirtualUser(loadTestDTO.getId(), maxCount, scenario, this, nettyApiClient, latch);
+            virtualUsers.add(virtualUser);
+
+            Instant startTime = Instant.now().plusMillis(i * rampUpTimeMillis);
+            ScheduledFuture<?> userTask = taskScheduler.schedule(virtualUser, Date.from(startTime));
+            scheduledFutures.add(userTask);
+        }
+
+        if (taskDurationMillis > 0) {
+            taskScheduler.schedule(() -> {
+                stopLoadTest(loadTestDTO.getId());
+            }, new Date(Instant.now().toEpochMilli() + taskDurationMillis)); // Schedule cancellation task at startTime + taskDurationMillis
+        }
+
+        loadTestMonitorMap.put(loadTestDTO.getId(), scheduledFutures, virtualUsers, taskScheduler);
+
+        try {
+            latch.await();
+            logger.debug("All virtual users have completed");
+            stopLoadTest(loadTestDTO.getId());
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
+        }
+    }
+
+    public void traverseDFS(ScenarioNode node) {
+        if (node == null) {
+            return;
+        }
+
+        if (node.getClassName() != null && node.getClassName().equalsIgnoreCase("api")) {
+            ApiRequestInfo apiRequestInfo = apiRequestMapper.map(node.getData().get("id"));
+            ApiRequestDTO apiRequestDTO = apiRequestMapper.map(apiRequestInfo);
+            node.setApiRequest(apiRequestDTO);
+        }
+
+        // Visited set to avoid cycles
+        Set<String> visited = new HashSet<>();
+        visited.add(node.getId());
+
+        dfsHelper(node, visited);
+    }
+
+    private void dfsHelper(ScenarioNode node, Set<String> visited) {
+        if (node.getConnections() == null) {
+            return;
+        }
+
+        for (ScenarioNode adjacentNode : node.getConnections()) {
+            if (!visited.contains(adjacentNode.getId())) {
+                // Process the adjacent node
+                System.out.println(adjacentNode.getName());
+                if (adjacentNode.getClassName() != null && adjacentNode.getClassName().equalsIgnoreCase("api")) {
+                    ApiRequestInfo apiRequestInfo = apiRequestMapper.map(adjacentNode.getData().get("id"));
+                    ApiRequestDTO apiRequestDTO = apiRequestMapper.map(apiRequestInfo);
+                    adjacentNode.setApiRequest(apiRequestDTO);
+                }
+                visited.add(adjacentNode.getId());
+
+                // Recurse into adjacent node
+                dfsHelper(adjacentNode, visited);
+            }
+        }
+    }
+
+
+    public void stopLoadTest(String id) {
+        logger.debug("Stopping load test with id: " + id);
+        List<VirtualUser> virtualUsers = loadTestMonitorMap.getVirtualUsers(id);
+        if (virtualUsers != null) {
+            virtualUsers.forEach(VirtualUser::stop);
+        }
+
+        List<ScheduledFuture<?>> futures = loadTestMonitorMap.getFutures(id);
+        if (futures != null) {
+            futures.forEach(future -> {
+                future.cancel(true);
+            });
+        }
+
+        ThreadPoolTaskScheduler scheduler = loadTestMonitorMap.getScheduler(id);
+        if (scheduler != null) {
+            scheduler.shutdown();
+        }
+
+        loadTestMonitorMap.remove(id);
+    }
+
+
+}
diff --git a/src/main/java/com/eactive/testmaster/loadtest/service/VirtualUser.java b/src/main/java/com/eactive/testmaster/loadtest/service/VirtualUser.java
new file mode 100644
index 0000000..10ae072
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/loadtest/service/VirtualUser.java
@@ -0,0 +1,246 @@
+package com.eactive.testmaster.loadtest.service;
+
+import com.eactive.testmaster.client.dto.ApiRequestDTO;
+import com.eactive.testmaster.client.dto.ApiRequestKeyValueDTO;
+import com.eactive.testmaster.client.dto.ApiResponse;
+import com.eactive.testmaster.client.dto.internal.ScenarioNode;
+import com.eactive.testmaster.client.service.NettyApiClient;
+import com.eactive.testmaster.loadtest.dto.LoadTestRequestAndResponse;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.ExecutionException;
+import java.util.regex.Pattern;
+import javax.script.ScriptEngine;
+import javax.script.ScriptEngineManager;
+import javax.script.ScriptException;
+import org.apache.commons.lang3.SerializationUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class VirtualUser implements Runnable {
+
+    //logger
+    private static final Logger logger = LoggerFactory.getLogger(VirtualUser.class);
+    private final Object pauseLock = new Object();
+    private boolean paused = false;
+    private volatile boolean running = true;
+
+    private int maxCount;
+
+    private Thread runningThread;
+
+    private final LoadTestService loadTestService;
+    private final NettyApiClient nettyApiClient;
+
+    private static Map<String, String> globals = new ConcurrentHashMap<>();
+    private Map<String, String> variables = new ConcurrentHashMap<>();
+
+    private String testId;
+
+    private ScenarioNode scenario;
+
+    private Set<ScenarioNode> visitedNodes = new HashSet<>();
+
+    private CountDownLatch latch;
+
+    public VirtualUser(String testId, int maxCount, ScenarioNode scenarioDTO, LoadTestService loadTestService, NettyApiClient nettyApiClient, CountDownLatch latch) {
+        this.testId = testId;
+        this.scenario = scenarioDTO;
+        this.loadTestService = loadTestService;
+        this.nettyApiClient = nettyApiClient;
+        this.maxCount = maxCount;
+        this.latch = latch;
+
+    }
+
+    public void pause() {
+        synchronized (pauseLock) {
+            paused = true;
+        }
+    }
+
+    public void resume() {
+        synchronized (pauseLock) {
+            paused = false;
+            pauseLock.notifyAll();
+        }
+    }
+
+    public void stop() {
+        running = false;
+        latch.countDown();
+        resume(); // To ensure the user exits if it's paused
+        if (runningThread != null) {
+            logger.debug("Virtual User Interrupting thread");
+            runningThread.interrupt();
+        }
+    }
+
+    @Override
+    public void run() {
+        try {
+
+            logger.debug("Virtual user started");
+            runningThread = Thread.currentThread();
+            int count = 0;
+            while (maxCount == 0 || running && count < maxCount) {
+                synchronized (pauseLock) {
+                    if (paused) {
+                        try {
+                            pauseLock.wait();
+                        } catch (InterruptedException ex) {
+                            Thread.currentThread().interrupt(); // Preserve interrupt status
+                            break;
+                        }
+                    }
+                }
+                if (!running) {
+                    break;
+                }
+                //clear visited nodes
+                visitedNodes.clear();
+                performAction();
+                logger.debug("Count: " + (count + 1) + " of " + maxCount);
+                count++;
+            }
+        } finally {
+            latch.countDown();
+        }
+    }
+
+    private void performAction() {
+        ScenarioNode currentNode = scenario;
+
+        while (running) {
+            if (Thread.interrupted()) {
+                break;
+            }
+            if (currentNode != null) {
+                if (visitedNodes.contains(currentNode)) {
+                    logger.debug("Loop detected, stopping");
+                    break;
+                }
+                visitedNodes.add(currentNode);
+
+                if (currentNode.getClassName().equalsIgnoreCase("api")) {
+                    processApi(currentNode);
+                }
+
+                if (currentNode.getConnections() != null && !currentNode.getConnections().isEmpty()) {
+                    currentNode = currentNode.getConnections().get(0); //현재는 1개의 connection만 지원
+                } else {
+                    break;
+                }
+            }
+        }
+        logger.debug("Action performed or interrupted");
+    }
+
+    private void processApi(ScenarioNode currentNode) {
+        try {
+            if (currentNode.getApiRequest() != null) {
+                ApiRequestDTO cloned = SerializationUtils.clone(currentNode.getApiRequest());
+
+                executePreRequestScript(cloned);
+                ApiRequestDTO replaced = replacePlaceHoldersWithVariables(cloned);
+
+                long startTime = System.currentTimeMillis();
+                ApiResponse response = nettyApiClient.handleRequest(replaced).get();
+                long endTime = System.currentTimeMillis();
+                long responseTime = endTime - startTime;
+
+                executePostRequestScript(replaced, response);
+                LoadTestRequestAndResponse requestAndResponse = new LoadTestRequestAndResponse(replaced, response, responseTime);
+                loadTestService.sendLoadTestUpdate(testId, requestAndResponse);
+            }
+        } catch (InterruptedException | ExecutionException e) {
+            loadTestService.sendLoadTestError(testId, "An error occurred: " + e.getMessage());
+        }
+    }
+
+    private void executePreRequestScript(ApiRequestDTO apiRequest) {
+        ScriptEngineManager manager = new ScriptEngineManager();
+        ScriptEngine engine = manager.getEngineByName("nashorn");
+        engine.put("console", new Console());
+        engine.put("globals", globals);
+        engine.put("variables", variables);
+        engine.put("request", apiRequest);
+        try {
+            engine.eval(apiRequest.getPreRequestScript());
+        } catch (ScriptException e) {
+            logger.error("Error executing pre-request script", e);
+            e.printStackTrace();
+        }
+    }
+
+    private void executePostRequestScript(ApiRequestDTO apiRequest, ApiResponse response) {
+        ScriptEngineManager manager = new ScriptEngineManager();
+        ScriptEngine engine = manager.getEngineByName("nashorn");
+        engine.put("console", new Console());
+        engine.put("globals", globals);
+        engine.put("variables", variables);
+        engine.put("request", apiRequest);
+        engine.put("response", response);
+        try {
+            engine.eval(apiRequest.getPostRequestScript());
+        } catch (ScriptException e) {
+            logger.error("Error executing post-request script", e);
+            e.printStackTrace();
+        }
+    }
+
+    private ApiRequestDTO replacePlaceHoldersWithVariables(ApiRequestDTO apiRequest) {
+        Map<String, String> mergedVariables = new HashMap<>();
+
+        // Merge globals and variables
+        if (globals != null) {
+            mergedVariables.putAll(globals);
+        }
+        if (variables != null) {
+            mergedVariables.putAll(variables);
+        }
+
+        for (Map.Entry<String, String> entry : mergedVariables.entrySet()) {
+            String key = entry.getKey();
+            String value = entry.getValue();
+            String placeholder = "\\{\\{" + key + "\\}\\}"; // Escape braces for regex
+
+            apiRequest.setPath(apiRequest.getPath().replaceAll(placeholder, value));
+
+            if (apiRequest.getRequestBody() != null) {
+                apiRequest.setRequestBody(apiRequest.getRequestBody().replaceAll(placeholder, value));
+            }
+
+            if (apiRequest.getHeaders() != null) {
+                apiRequest.setHeaders(replaceInList(apiRequest.getHeaders(), placeholder, value));
+            }
+
+            if (apiRequest.getQueryParams() != null) {
+                apiRequest.setQueryParams(replaceInList(apiRequest.getQueryParams(), placeholder, value));
+            }
+        }
+
+        return apiRequest;
+    }
+
+    private List<ApiRequestKeyValueDTO> replaceInList(List<ApiRequestKeyValueDTO> originalList, String placeholder, String value) {
+        List<ApiRequestKeyValueDTO> replacedList = new ArrayList<>();
+        Pattern pattern = Pattern.compile(placeholder);
+
+        originalList.forEach(kv -> {
+            String replacedKey = pattern.matcher(kv.getKey()).replaceAll(value);
+            String replacedValue = pattern.matcher(kv.getValue()).replaceAll(value);
+            replacedList.add(new ApiRequestKeyValueDTO(kv.isEnabled(), replacedKey, replacedValue));
+        });
+
+        return replacedList;
+    }
+
+
+}
diff --git a/src/main/java/com/eactive/testmaster/server/controller/ServerRestController.java b/src/main/java/com/eactive/testmaster/server/controller/ServerRestController.java
new file mode 100644
index 0000000..4de463d
--- /dev/null
+++ b/src/main/java/com/eactive/testmaster/server/controller/ServerRestController.java
@@ -0,0 +1,43 @@
+package com.eactive.testmaster.server.controller;
+
+import com.eactive.testmaster.server.dto.ServerDTO;
+import com.eactive.testmaster.server.dto.ServerSearch;
+import com.eactive.testmaster.server.entity.Server;
+import com.eactive.testmaster.server.mapper.ServerMapper;
+import com.eactive.testmaster.server.service.ServerMgmtService;
+import java.util.List;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.ui.ModelMap;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/mgmt/servers")
+public class ServerRestController {
+
+    private final ServerMgmtService serverMgmtService;
+
+    private final ServerMapper serverMapper;
+
+    public ServerRestController(ServerMgmtService serverMgmtService, ServerMapper serverMapper) {
+        this.serverMgmtService = serverMgmtService;
+        this.serverMapper = serverMapper;
+    }
+
+    @GetMapping("/list.do")
+    public ResponseEntity<List<ServerDTO>> listView(@ModelAttribute("serverSearch") ServerSearch serverSearch, ModelMap model, Pageable pageable) {
+        Page<Server> page = serverMgmtService.findAll(serverSearch.buildSpecification(), pageable);
+        HttpHeaders headers = new HttpHeaders();
+        headers.add("X-Total-Count", String.valueOf(page.getTotalElements()));
+        headers.add("X-Total-Pages", String.valueOf(page.getTotalPages()));
+        headers.add("X-Current-Page", String.valueOf(page.getNumber()));
+        headers.add("X-Page-Size", String.valueOf(page.getSize()));
+        return new ResponseEntity<>(serverMapper.map(page.getContent()), headers, HttpStatus.OK);
+    }
+}
diff --git a/src/main/java/com/eactive/testmaster/server/mapper/ServerMapper.java b/src/main/java/com/eactive/testmaster/server/mapper/ServerMapper.java
index 193edc3..959861c 100644
--- a/src/main/java/com/eactive/testmaster/server/mapper/ServerMapper.java
+++ b/src/main/java/com/eactive/testmaster/server/mapper/ServerMapper.java
@@ -5,13 +5,15 @@ import com.eactive.testmaster.common.exception.NotFoundException;
 import com.eactive.testmaster.server.dto.ServerDTO;
 import com.eactive.testmaster.server.entity.Server;
 import com.eactive.testmaster.server.entity.ServerRepository;
+import java.util.List;
+import java.util.stream.Collectors;
 import org.mapstruct.Mapper;
 import org.mapstruct.ReportingPolicy;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 @Mapper(componentModel = "spring",
-        unmappedTargetPolicy = ReportingPolicy.IGNORE)
+    unmappedTargetPolicy = ReportingPolicy.IGNORE)
 @Component
 public class ServerMapper {
 
@@ -19,17 +21,23 @@ public class ServerMapper {
     ServerRepository serverRepository;
 
     public Server mapById(Long id) {
-        if (id == null || id == 0) return null;
+        if (id == null || id == 0) {
+            return null;
+        }
         return serverRepository.findById(id).orElseThrow(() -> new NotFoundException("Server[" + id + "] not found"));
     }
 
     public Long mapById(Server server) {
-        if (server == null) return null;
+        if (server == null) {
+            return null;
+        }
         return server.getId();
     }
 
     public ServerDTO map(Server server) {
-        if (server == null) return null;
+        if (server == null) {
+            return null;
+        }
         ServerDTO dto = new ServerDTO();
 
         dto.setId(server.getId());
@@ -45,7 +53,9 @@ public class ServerMapper {
 
 
     public Server map(ServerDTO dto) {
-        if (dto == null) return null;
+        if (dto == null) {
+            return null;
+        }
 
         Server server = new Server();
 
@@ -59,4 +69,8 @@ public class ServerMapper {
 
         return server;
     }
+
+    public List<ServerDTO> map(List<Server> servers) {
+        return servers.stream().map(this::map).collect(Collectors.toList());
+    }
 }
diff --git a/src/main/resources/templates/fragment/head.html b/src/main/resources/templates/fragment/head.html
index 4e8e33a..5eb2b91 100644
--- a/src/main/resources/templates/fragment/head.html
+++ b/src/main/resources/templates/fragment/head.html
@@ -42,7 +42,7 @@
     <script th:src="@{/js/jquery-validation/localization/messages_ko.min.js}"></script>
     <script th:src="@{/js/common.js}"></script>
     <script th:src="@{/js/dataTables/datatables.min.js}"></script>
-    <script th:src="@{/plugins/apitestmanager/app.bundle.js}" defer></script>
+
 </head>
 
 </html>
diff --git a/src/main/resources/templates/fragment/header.html b/src/main/resources/templates/fragment/header.html
index 76ccb32..8f5a3fb 100644
--- a/src/main/resources/templates/fragment/header.html
+++ b/src/main/resources/templates/fragment/header.html
@@ -25,6 +25,9 @@
                     <div class="text-center flex-fill" sec:authorize="isAuthenticated()">
                         <a class="nav-link" th:href="@{/mgmt/api_tester.do}">요청 관리</a>
                     </div>
+                    <div class="text-center flex-fill" sec:authorize="isAuthenticated()">
+                        <a class="nav-link" th:href="@{/mgmt/load_tester.do}">부하 테스트</a>
+                    </div>
                     <div class="text-center flex-fill" sec:authorize="hasRole('ROLE_ADMIN')">
                         <div class="d-flex justify-content-center">
                             <div class="nav-item dropdown">
diff --git a/src/main/resources/templates/layout/api_tester_layout.html b/src/main/resources/templates/layout/api_tester_layout.html
index 0c2e0ae..204a7fb 100644
--- a/src/main/resources/templates/layout/api_tester_layout.html
+++ b/src/main/resources/templates/layout/api_tester_layout.html
@@ -51,8 +51,8 @@
 
     </th:block>
     <th:block layout:fragment="contentScript">
-
     </th:block>
+    <link th:href="@{/css/resizable.css}" rel="stylesheet" />
     <script>
         $(function () {
             const container = document.querySelector('.api-tester-layout');
@@ -156,7 +156,7 @@
     </script>
 </div>
 
-<footer th:replace="fragment/footer :: footerFragment"></footer>
+<!--<footer th:replace="fragment/footer :: footerFragment"></footer>-->
 
 </body>
 </html>
diff --git a/src/main/resources/templates/layout/base_layout.html b/src/main/resources/templates/layout/base_layout.html
index edef4ea..f0412b0 100644
--- a/src/main/resources/templates/layout/base_layout.html
+++ b/src/main/resources/templates/layout/base_layout.html
@@ -22,7 +22,7 @@
     </th:block>
 </div>
 
-<footer th:replace="fragment/footer :: footerFragment"></footer>
+<!--<footer th:replace="fragment/footer :: footerFragment"></footer>-->
 
 </body>
 </html>
diff --git a/src/main/resources/templates/page/login.html b/src/main/resources/templates/page/login.html
index b0b5c20..0507b3f 100644
--- a/src/main/resources/templates/page/login.html
+++ b/src/main/resources/templates/page/login.html
@@ -45,7 +45,7 @@
                 <input type="hidden" th:name="${_csrf.parameterName}" th:value="${_csrf.token}"/>
 
                 <div class="form-floating">
-                    <input type="text" class="form-control" name="id" id="id" maxlength="20" required>
+                    <input type="text" class="form-control" name="id" id="id" maxlength="20" required style="border-bottom-left-radius: 0; border-bottom-right-radius: 0">
                     <label for="id" class="form-label">ID</label>
                 </div>
                 <div class="form-floating">
diff --git a/src/main/resources/templates/page/tester/apiScenario.html b/src/main/resources/templates/page/tester/apiScenario.html
index 14ced5e..f5f8185 100644
--- a/src/main/resources/templates/page/tester/apiScenario.html
+++ b/src/main/resources/templates/page/tester/apiScenario.html
@@ -24,7 +24,6 @@
                     <button type="button" class="btn btn-primary btn-sm stop_scenario me-2">정지</button>
 <!--                    <button type="button" class="btn btn-primary btn-sm export">내보내기</button>-->
 <!--                    <button type="button" class="btn btn-primary btn-sm clear me-2">초기화</button>-->
-<!--                    <button type="button" class="btn btn-primary btn-sm add_start">시작 노드</button>-->
                 </div>
                 <div>시나리오 설명이 여기에 표시</div>
                 <div class="api-scenario-editor-body" style="display: flex; flex-direction: row; flex: 1; border: 1px solid grey; padding: 5px;">
diff --git a/src/main/resources/templates/page/tester/apiTester.html b/src/main/resources/templates/page/tester/apiTester.html
index a33523e..67e7c8f 100644
--- a/src/main/resources/templates/page/tester/apiTester.html
+++ b/src/main/resources/templates/page/tester/apiTester.html
@@ -4,58 +4,47 @@
 <body>
 
 <section layout:fragment="contentFragment">
-<!--    <script>-->
-<!--        require.config({paths: {'vs': '/plugins/vs'}});-->
-<!--    </script>-->
-    <div class="container-fluid mt-2">
-        <input type="hidden" th:name="${_csrf.parameterName}" th:value="${_csrf.token}">
-        <div class="card">
-            <div class="card-header" style="min-height: 50px;">
-                <ul class="nav nav-tabs card-header-tabs" role="tablist" id="apiRequestTabTitle">
-                </ul>
-            </div>
-            <div class="card-body" style="min-height: 800px;">
-                <div class="tab-content" id="apiRequestTabContent">
-                </div>
-            </div>
-        </div>
-    </div>
-    <div id="popperContent" class="variable_popper" style="display: none;">
-        <div class="variable_popper">
-        </div>
-    </div>
-    <div style="display: none">
-        <ul id="servers">
-            <li th:each="server : ${servers}" th:data-id="${server.id}" th:data-name="${server.name}" th:data-path="${server.basePath}"></li>
+  <div class="container-fluid mt-2" style="height: 100%">
+    <input type="hidden" th:name="${_csrf.parameterName}" th:value="${_csrf.token}">
+    <div class="card" style="height: 100%">
+      <div class="card-header" style="min-height: 50px;">
+        <ul class="nav nav-tabs card-header-tabs" role="tablist" id="apiRequestTabTitle">
         </ul>
+      </div>
+      <div class="card-body" style="min-height: 800px;">
+        <div class="tab-content" id="apiRequestTabContent" style="height: 100%;">
+        </div>
+      </div>
     </div>
-    <iframe id="preRequest" class="preRequest"></iframe>
-    <iframe id="postRequest" class="postRequest"></iframe>
+  </div>
+  <div id="popperContent" class="variable_popper" style="display: none;">
+    <div class="variable_popper">
+    </div>
+  </div>
+  <iframe id="preRequest" class="preRequest"></iframe>
+  <iframe id="postRequest" class="postRequest"></iframe>
 </section>
 </body>
 
 <th:block layout:fragment="contentScript">
-    <script>
-        $(document).ajaxError(function (event, jqxhr, settings, exception) {
-            if (jqxhr.status === 401) {
-                window.location.href = '[[@{/}]]';
-            }
-        });
+  <script th:src="@{/plugins/apitestmanager/app.bundle.js}" defer></script>
+  <script>
+    $(document).ajaxError(function(event, jqxhr, settings, exception) {
+      if (jqxhr.status === 401) {
+        window.location.href = '[[@{/}]]';
+      }
+    });
 
-        $(document).ready(function () {
-            let servers = [];
-            $('#servers li').each(function () {
-                servers.push({
-                    id: $(this).data('id'),
-                    name: $(this).data('name'),
-                    basePath: $(this).data('path')
-                });
-            });
-            let options = {};
-            options.contextPath = '[[@{/}]]';
-            const apiTester = new APITestManager(servers, options);
-        });
-    </script>
+    $(document).ready(function() {
+      fetch('[[@{/mgmt/servers/list.do}]]').then(response => response.json()).then(data => {
+        let options = {};
+        options.contextPath = '[[@{/}]]';
+        options.servers = data;
+        const apiTester = new APITestManager(options);
+      });
+
+    });
+  </script>
 </th:block>
 </html>
 
diff --git a/src/main/resources/templates/page/tester/loadTester.html b/src/main/resources/templates/page/tester/loadTester.html
new file mode 100644
index 0000000..1a37f0d
--- /dev/null
+++ b/src/main/resources/templates/page/tester/loadTester.html
@@ -0,0 +1,100 @@
+<!doctype html>
+<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"
+      xmlns:layout="http://www.ultraq.net.nz/thymeleaf/layout" layout:decorate="~{layout/base_layout}">
+<body>
+
+<section layout:fragment="contentFragment">
+  <input type="hidden" th:name="${_csrf.parameterName}" th:value="${_csrf.token}">
+  <div class="toast" role="alert" aria-live="assertive" aria-atomic="true" style="position: absolute; top: 0; left: 0;">
+    <div class="toast-header">
+      <strong class="mr-auto">알림</strong>
+      <button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button>
+    </div>
+    <div class="toast-body">
+    </div>
+  </div>
+  <div class="api-tester-layout">
+    <div class="modal fade" id="new_load_test_modal" tabindex="-1" aria-labelledby="new_load_test_modal" aria-hidden="true">
+      <div class="modal-dialog">
+        <div class="modal-content">
+          <div class="modal-header">
+            <h5 class="modal-title">새로운 테스트 추가</h5>
+            <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+          </div>
+          <div class="modal-body">
+            <input type="text" id="new_load_test_name" class="form-control" placeholder="이름을 입력하세요" aria-label="이름을 입력하세요" name="test_name" required/>
+          </div>
+          <div class="modal-footer">
+            <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">닫기</button>
+            <button type="button" class="btn btn-primary create_load_test">저장</button>
+          </div>
+        </div>
+      </div>
+    </div>
+    <div class="modal fade" id="confirm_delete_modal" tabindex="-1" aria-labelledby="confirm_delete_load_test_modal" aria-hidden="true">
+      <div class="modal-dialog">
+        <div class="modal-content">
+          <div class="modal-header">
+            <h5 class="modal-title">테스트 삭제</h5>
+            <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+          </div>
+          <div class="modal-body">
+            <div>삭제 하시겠습니까?</div>
+          </div>
+          <div class="modal-footer">
+            <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">닫기</button>
+            <button type="button" class="btn btn-primary confirm_delete_load_test">삭제</button>
+          </div>
+        </div>
+      </div>
+    </div>
+    <div class="tester">
+      <section class="d-flex flex-row" style="width: 100%">
+        <div class="load-test-sidebar border" style="width: 200px; ">
+          <div style="background: rgba(0,0,0,.03); padding: 2px;">
+            테스트 목록
+            <button type="button" class="btn btn-primary me-2" id="new_load_test"><i class="fa fa-plus"></i></button>
+          </div>
+          <div class="pt-links">
+            <ul class="list-unstyled load_test_list" id="load_test_menubar">
+            </ul>
+          </div>
+        </div>
+        <div class="d-flex flex-column" style="flex: 1;">
+          <div class="d-flex" style="width: 100%; height: 80px; background: rgba(0, 0, 0, .03); padding: 5px;" id="load-tester-view">
+          </div>
+          <div class="test-log d-flex flex-row" style="flex: 1" id="load-tester-result-view">
+          </div>
+        </div>
+      </section>
+    </div>
+  </div>
+</section>
+</body>
+
+<th:block layout:fragment="contentScript">
+  <link th:href="@{/css/goldenlayout-base.css}" rel="stylesheet"/>
+  <link th:href="@{/css/goldenlayout-light-theme.css}" rel="stylesheet"/>
+  <link rel="stylesheet" th:href="@{/css/xspreadsheet.css}">
+  <script th:src="@{/plugins/apitestmanager/app.bundle.js}"></script>
+  <script>
+
+  </script>
+  <script>
+    $(document).ajaxError(function(event, jqxhr, settings, exception) {
+      if (jqxhr.status === 401) {
+        window.location.href = '[[@{/}]]';
+      }
+    });
+
+    $(document).ready(function() {
+      let options = {};
+      options.contextPath = '[[@{/}]]';
+      options.type = 'load';
+      new APITestManager(options);
+
+    });
+  </script>
+</th:block>
+</html>
+