tsconfig.json

{
    "compilerOptions": {
        "outDir": "dist",
        "module": "commonjs",
        "target": "es5",
        "lib": [ "es2015", "dom" ],
        "sourceMap": true,
        "declaration": true,
        "types": [ "node" ],
        "resolveJsonModule": true,
    },
    "include": [
        "src/*"
    ]
}