tsconfig.json

{
  "exclude": [
    "node_modules",
    "**/*.test.*"
  ],
  "compilerOptions": {
    "baseUrl": ".",
    "experimentalDecorators": true,
    "sourceMap": true,
    "noImplicitAny": true,
    "moduleResolution": "node",
    "module": "commonjs",
    "target": "es2015",
    "jsx": "react",
    "types": [
      "webpack-env",
      "node"
    ]
  }
}