tsconfig.json

{
  "compilerOptions": {
    /* Basic Options */
    "target": "es6",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'. */
    "module": "commonjs",                     /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
    "sourceMap": true,                     /* Generates corresponding '.map' file. */
    "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
    "outDir": "./lib",
    "removeComments": true,                /* Do not emit comments to output. */
    "allowJs": false,
    "declaration": true,

    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,

    /* Strict Type-Checking Options */
    "strict": true,                            /* Enable all strict type-checking options. */
    "strictFunctionTypes": true,           /* Disable the new bidirectional covariance check in TS 2.6 */
    "strictBindCallApply": false,          /* Disable the strict bind from TS 3.2 as it can't handle overloads correctly. */
    "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
    "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */

    /* Module Resolution Options */
    "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic ' (TypeScript pre-1.6). */
    "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */

    "lib": [
      "es6",
      "es2017.object"
    ],

    "typeRoots": [
      "./node_modules/@types"
    ],

    "types": [
      "node",
      "mocha",
      "validator",
      "inversify"
    ]

  },

  "include": [
    "src/**/*",
    "tests/**/*"
  ]
}