tsconfig.json

{
  "compilerOptions": {
    "target": "es2016", /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
    "module": "commonjs", /* Specify what module code is generated. */
    "typeRoots": [
      "@types/express/index.d.ts"
    ], /* Specify multiple folders that act like './node_modules/@types'. */
    "outDir": "./dist", /* Specify an output folder for all emitted files. */
    "rootDir": "./",
    "removeComments": true, /* Disable emitting comments. */
    "esModuleInterop": true, /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */
    "forceConsistentCasingInFileNames": true, /* Ensure that casing is correct in imports. */
    "strict": true, /* Enable all strict type-checking options. */
    "skipLibCheck": true, /* Skip type checking all .d.ts files. */
  },
  "include": [
    "**/*.ts"
  ],
  "exclude": [
    "node_modules",
    "dist"
  ],
}