tsconfig.json

{
  "compilerOptions": {
    "types": ["node","express"],
    "target": "ESNEXT",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
    "module": "commonjs",                                /* Specify what module code is generated. */
    "allowJs": true,                                  /* Allow JavaScript files to be a part of your program. Use the `checkJS` option to get errors from these files. */
    "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": false,                                      /* Enable all strict type-checking options. */
    "skipLibCheck": true,                                 /* Skip type checking all .d.ts files. */
    "outDir": "./build",
    "rootDir": "./src",
    "moduleResolution":"node",
    "baseUrl":"."
  },
  "include": [
    "src/**/*",
  ],
  "exclude": [
    "node_modules"
  ]
}