webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const TsconfigPathsPlugin = require('tsconfig-paths-webpack-plugin');
const ServiceWorkerWebpackPlugin = require("serviceworker-webpack5-plugin");
const { WebpackManifestPlugin } = require('webpack-manifest-plugin');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const TerserWebpackPlugin = require('terser-webpack-plugin');
const ImageMinimizerPlugin = require("image-minimizer-webpack-plugin");

module.exports = {
  entry: './source/index.ts',
  module: {
    rules: [
      { test: /\.(js|ts)$/, use: [{
        loader: 'babel-loader',
        options: {
          presets: [
              ['@babel/preset-typescript', { allowNamespaces: true }]
          ],
        }
      }]
      },
      { test: /\.(scss|css)$/, use: [MiniCssExtractPlugin.loader, 'css-loader', 'sass-loader' ] },
      { 
        test: /\.(handlebars|hbs)$/, 
        loader: 'handlebars-loader',
      },
    ]
  },
  resolve: {
    extensions: ['.ts', '.js', '.scss', '.css', '.hbs'],
    plugins: [new TsconfigPathsPlugin()]
  },
  output: {
    publicPath: '/',
    path: path.resolve(__dirname, 'dist'),
    filename: 'index_bundle.js'
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: "index.css",
    }),
    new ServiceWorkerWebpackPlugin({
      entry: path.join(__dirname, "./source/serviceWorker.ts"),
    }),
    new HtmlWebpackPlugin({
        template: './public/index.html',
    }),
    new WebpackManifestPlugin({
      fileName: 'manifest.json'
    }),
  ],
  optimization: {
    minimize: true,
    minimizer: [
      new TerserWebpackPlugin(),
      "...",
      new ImageMinimizerPlugin({
        minimizer: {
          implementation: ImageMinimizerPlugin.sharpMinify,
          options: {
            encodeOptions: {
              jpeg: {
                quality: 100,
              },
              webp: {
                lossless: true,
              },
              avif: {
                lossless: true,
              },

              png: {},

              gif: {},
            },
          },
        },
      }),
    ],
  },


  mode: 'development',
  
  devServer: {
    historyApiFallback: true,
    static:[
      path.resolve(__dirname, './dist'), path.resolve(__dirname, './public'),
    ],
    compress: true,
    hot: true,
    port: 80,
  }
  
};