TypeScript project files

webpack.config.js

const path = require('path');

module.exports = {
  entry: './src/index.ts',
  target: "node",
  mode: "development",
  devtool: 'inline-source-map',
  watch: true,
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        use: 'ts-loader',
        exclude: /node_modules/
      }
    ]
  },
  resolve: {
    extensions: [ '.tsx', '.ts', '.js' ]
  },
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname),
    libraryTarget: 'commonjs'
  },
  externals: [/* "googleapis" */]
};