tsconfig.node.json

{
    "compilerOptions": {
        "allowUnreachableCode": false,
        "allowUnusedLabels": false,
        "declaration": true,
        "declarationDir": "types",
        "forceConsistentCasingInFileNames": true,
        "inlineSourceMap": false,
        "newLine": "LF",
        "module": "commonjs",
        "moduleResolution": "node",
        "noFallthroughCasesInSwitch": true,
        "noImplicitAny": false,
        "noImplicitReturns": true,
        "noImplicitUseStrict": true,
        "noUnusedLocals": true,
        "preserveConstEnums": false,
        "removeComments": true,
        "rootDir": "src",
        "sourceMap": false,
        "strictNullChecks": false,
        "suppressImplicitAnyIndexErrors": true,
        "target": "es5",
        "outDir": "lib",
        "lib": [
            "es2015",
            "dom"
        ]
    },
    "exclude": [
        "dist", "lib",
        "tests", 
        "node_modules", "types"]
}