webpack.config.ts

import path from "path";

const nodeExternals = require("webpack-node-externals")

module.exports = {
  mode: 'production',
  target: 'node',
  entry: './src/index.ts',
  output: {
    filename: 'index.js',
    path: path.resolve(__dirname, 'build/script'),
  },
  optimization: {
    minimize: true,
  },
  resolve: {
    extensions: ['.tsx', '.ts', '.js'],
  },
  externals: [nodeExternals({
    additionalModuleDirs: [
      path.resolve(__dirname, '../../node_modules')
    ],
    modulesFromFile: true
  }),],
  externalsPresets: {
    node: true,
  },
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        use: 'ts-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.m?js$/,
        exclude: /(node_modules|bower_components)/,
        use: {
          loader: 'babel-loader',
        },
      },

    ],
  },
};