webpack.server.config.js

var webpack = require('webpack'),
  path = require('path'),
  CompressionPlugin = require('compression-webpack-plugin'),
  CopyWebpackPlugin = require('copy-webpack-plugin'),
  TerserPlugin = require('terser-webpack-plugin');
var { CleanWebpackPlugin } = require('clean-webpack-plugin');

const ASSET_PATH = process.env.ASSET_PATH || '/';

const isDevelopment = process.env.NODE_ENV !== 'production';

const options = {
  target: 'node',
  mode: process.env.NODE_ENV || 'development',
  entry: {
    index: path.join(__dirname, 'server', 'index.tsx'),
  },
  resolve: {
    extensions: ['.js', '.jsx', '.ts', '.tsx', '.css', '.scss', '.png', '.svg'],
  },
  output: {
    filename: '[name].bundle.js',
    path: path.resolve(__dirname, 'build', 'server'),
    clean: true,
    publicPath: ASSET_PATH,
  },
  module: {
    rules: [
      {
        test: /\.(gif|png|jpe?g|svg)$/i,
        use: [
          'file-loader',
          {
            loader: 'image-webpack-loader',
            options: {
              publicPath: 'assets',
              bypassOnDebug: true, // webpack@1.x
              disable: true, // webpack@2.x and newer
            },
          },
        ],
      },
      {
        test: /\.(ts|tsx)$/,
        exclude: /node_modules\/(?!(tlsn-js|tlsn-js-v5)\/).*/,
        use: [
          {
            loader: require.resolve("ts-loader"),
            options: {
              transpileOnly: isDevelopment,
            },
          },
        ],
      },
      {
        // look for .css or .scss files
        test: /\.(css|scss)$/,
        // in the `web` directory
        use: [
          {
            loader: 'style-loader',
          },
          {
            loader: 'css-loader',
            options: { importLoaders: 1 },
          },
          {
            loader: 'postcss-loader',
          },
          {
            loader: 'sass-loader',
            options: {
              sourceMap: true,
            },
          },
        ],
      },
      {
        test: /\.node$/,
        use: 'node-loader',
      },
    ],
  },
  plugins: [
    new CleanWebpackPlugin({ verbose: false }),
    new webpack.ProgressPlugin(),
    new webpack.EnvironmentPlugin(['NODE_ENV']),
    new CopyWebpackPlugin({
      patterns: [
        { from: 'server/util/poaps.txt', to: 'util/' },
        { from: 'server/util/assignments.json', to: 'util/' }
      ],
    }),
    new CompressionPlugin({
      algorithm: 'gzip',
      test: /\.(js|css|html|svg)$/,
      threshold: 10240,
      deleteOriginalAssets: false,
    }),
  ].filter(Boolean),
  infrastructureLogging: {
    level: 'info',
  },
};

if (process.env.NODE_ENV === 'development') {
  options.devtool = 'cheap-module-source-map';
} else {
  options.optimization = {
    minimize: true,
    minimizer: [
      new TerserPlugin({
        extractComments: false,
      }),
    ],
  };
}

module.exports = options;