webpack.config.js

/* eslint-disable quotes */
/* eslint-disable prettier/prettier */
const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const Dotenv = require('dotenv-webpack');

module.exports = {
  mode: 'production',
  entry: './src/index.js',
  resolve: {
    extensions: ['', '.js', '.jsx', '.tsx'],
  },
  output: {
    publicPath: '/',
    path: path.resolve(__dirname, 'build'),
    filename: 'bundled.js',
  },
  devServer: {
    static: {
      directory: path.join(__dirname, 'dist'),
    },
    compress: true,
    port: 9000,
    historyApiFallback: true,
  },
  optimization: {
    usedExports: true
  },
  module: {
    rules: [
      {
        test: /\.(png|jpe?g|gif)$/i,
        use: [
          'file-loader',
          {
            loader: 'image-webpack-loader',
            options: {
              mozjpeg: {
                progressive: true,
              },
              optipng: {
                enabled: false,
              },
              pngquant: {
                quality: [0.65, 0.9],
                speed: 4,
              },
              gifsicle: {
                interlaced: false,
              },
              webp: {
                quality: 75,
              },
            },
          },
        ],
      },

      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
        },
      },
      {
        test: /\.css$/,
        use: [MiniCssExtractPlugin.loader, 'css-loader', 'postcss-loader'],
      },
    ],
  },
  plugins: [
    new MiniCssExtractPlugin(),
    new HtmlWebpackPlugin({ template: './src/index.html' }),
    new Dotenv({
      systemvars: true,
    }),
  ],
};