tsconfig.json

{
  "compilerOptions": {
    /* Visit https://aka.ms/tsconfig to read more about this file */
    "target": "es2016",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
    "strictPropertyInitialization": false, // this one is for preventing the typescript errors while using @Inject()
    "experimentalDecorators": true,                   /* Enable experimental support for legacy experimental decorators. */
    "emitDecoratorMetadata": true,                    /* Emit design-type metadata for decorated declarations in source files. */
    "module": "commonjs",                                /* Specify what module code is generated. */
    "baseUrl": "src",                                  /* Specify the base directory to resolve non-relative module names. */
    "types": ["./src/global.d.ts"],                                      /* Specify type package names to be included without being referenced in a source file. */
    "outDir": "./dist",                                   /* Specify an output folder for all emitted 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. */

    /* Type Checking */
    "strict": true,                                      /* Enable all strict type-checking options. */
    "skipLibCheck": true                                 /* Skip type checking all .d.ts files. */
  },
  "exclude": ["mock_endpoint", "node_modules"]
}