webpack.config.js

const path = require('path');
const slsw = require('serverless-webpack');
const nodeExternals = require('webpack-node-externals');

module.exports = {
  mode: slsw.lib.webpack.isLocal ? "development" : "production",
  entry: slsw.lib.entries,
  output: {
    libraryTarget: 'commonjs',
    path: path.join(__dirname, '.webpack'),
    filename: '[name].js'
  },
  target: 'node',
  externals: [nodeExternals()], // exclude external modules
  module: {
    rules: [
      {
        test: /\.ts$/,
        use: [
          {
            loader: 'ts-loader',
            options: {
              transpileOnly: true
            }
          }
        ],
        include: __dirname,
        exclude: /node_modules/,
      }
    ]
  },
  resolve: {
    extensions: ['.tsx', '.ts', '.js']
  },
  plugins: [
  ],
  stats: 'minimal',
  devtool: slsw.lib.webpack.isLocal ? 'source-map' : 'none',
};