Migrating the project from JavaScript to TypeScript (part 1)

webapp/package.json

@@ -46,6 +46,7 @@
     "@babel/plugin-transform-private-property-in-object": "^7.23.4",
     "axios-mock-adapter": "^1.22.0",
     "expect-puppeteer": "^9.0.2",
+    "typescript": "4.9.5",
     "jest": "^29.3.1",
     "jest-cucumber": "^3.0.1",
     "jest-environment-node": "^29.7.0",

webapp/tsconfig.json

@@ -0,0 +1,39 @@
+{
+    "compilerOptions": {
+      // project options
+      "lib": [
+        "ESNext",
+        "dom"
+      ],
+      "outDir": "lib",
+      "removeComments": true,
+      "target": "ES6",
+
+      // Module resolution
+      "baseUrl": "./",
+      "esModuleInterop": true,
+      "moduleResolution": "node",
+      "paths": {},
+
+      // Source Map
+      "sourceMap": true,
+      "sourceRoot": "/",
+
+      // Strict Checks
+      "alwaysStrict": true,
+      "allowUnreachableCode": false,
+      "noImplicitAny": true,
+      "strictNullChecks": true,
+
+      // Linter Checks
+      "noImplicitReturns": true,
+      "noFallthroughCasesInSwitch": true,
+      "noUncheckedIndexedAccess": true,
+      "noUnusedLocals": true,
+      "noUnusedParameters": true
+    },
+    "include": ["./**/*.ts"],
+    "exclude": [
+      "node_modules/**/*"
+    ]
+  }