webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CompressionPlugin = require('compression-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const OptimizeCssAssetsPlugin = require('optimize-css-assets-webpack-plugin');
const TerserJSPlugin = require('terser-webpack-plugin');

module.exports = {
  mode: 'production',
  entry: './client/src/index.js',
  output: {
    path: path.resolve(__dirname, './client/dist'),
    filename: 'bundle.[contentHash].js',
    publicPath: '/'
  },
  module: {
    rules: [
      {

        test: /\.(png|jp(e*)g|svg|gif)$/,
        use: [
          {
            loader: 'file-loader',
            options: {
              name: '[name].[hash].[ext]',
              outputPath: "imgs"
            },
          },
        ],
      },
      { test: /\.(js)$/, use: 'babel-loader' },
      { test: /\.(css)$/, use: [MiniCssExtractPlugin.loader, 'css-loader'] }
    ]
  },
  devtool: 'source-map',
  devServer: {
    historyApiFallback: true
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: "[name].[contentHash].css"
    }),
    new CleanWebpackPlugin(),
    new HtmlWebpackPlugin({
      template: './client/src/index.html',
      minify: {
        removeComments: true,
        collapseWhitespace: true,
        removeAttributeQuotes: true
      }
    }),
    new CompressionPlugin({
      filename: "[path][base].gz",
      algorithm: "gzip",
      test: /\.js$|\.css$|\.html$|\.json$|\.eot?.+$|\.ttf?.+$|\.woff?.+$|\.svg?.+$/,
      threshold: 10240,
      minRatio: 0.8
    })
  ],
  optimization: {
    minimizer: [
      new OptimizeCssAssetsPlugin(),
      new TerserJSPlugin(),
    ]
  },
}