webpack.config.js

const webpack = require('webpack')
const path = require('path')
const nodeExternals = require('webpack-node-externals')
const TerserPlugin = require('terser-webpack-plugin')

module.exports = {
  entry: './src/app.ts',
  output: {
    filename: 'app.min.js',
    path: path.resolve(__dirname),
  },
  target: 'node',
  externals: [nodeExternals()],
  module: {
    rules: [
      {
        test: /.tsx?$/,
        use: 'ts-loader',
        exclude: /node_modules/,
      },
    ],
  },
  mode: 'production',
  resolve: {
    extensions: ['.ts', '.js'],
  },
  plugins: [
    new webpack.BannerPlugin({ banner: '#!/usr/bin/env node', raw: true }),
    new webpack.DefinePlugin({
      'process.env.WEBPACK': 'true',
    }),
    new TerserPlugin({
      parallel: true,
      terserOptions: {
        ecma: 6,
      },
    }),
  ],
  watch: false,
}