webpack.config.js

const path = require("path");
const { ProgressPlugin } = require("webpack");
const HtmlWebPackPlugin = require("html-webpack-plugin");
const { merge } = require("webpack-merge");
const CopyWebpackPlugin = require("copy-webpack-plugin");
const { BundleAnalyzerPlugin } = require("webpack-bundle-analyzer");
const CompressionPlugin = require("compression-webpack-plugin");
const ModuleFederationPlugin = require("webpack/lib/container/ModuleFederationPlugin");

class HelloAsyncPlugin {
  apply(compiler) {
    compiler.hooks.emit.tapAsync(
      'HelloAsyncPlugin',
      (compilation, callback) => {
        // Do something async...
        setTimeout(function () {
          console.log('Done with async work...');
          callback();
        }, 10000);
      }
    );
  }
}

const deps = require("./package.json").dependencies;

const configMode = (env) => require(`./configs/webpack.${env.mode}`)(env);

const baseConfig = ({ analyze, mode, compress }) => ({
  mode,
  output: {
    path: path.resolve(__dirname, "dist"),
    publicPath: "http://localhost:3000/",
    clean: true,
  },
  resolve: {
    extensions: [".js", ".jsx"],
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader",
        },
      },
      {
        test: /\.(jpeg|jpg|png|gif|webp|svg)$/i,
        type: "asset",
      },
    ],
  },
  plugins: [
    analyze && new BundleAnalyzerPlugin(),
    new ProgressPlugin(),
    new HtmlWebPackPlugin({
      template: "public/index.html",
    }),
    new CopyWebpackPlugin({
      patterns: [
        {
          from: "public/",
          globOptions: {
            ignore: ["**/index.html"],
          },
        },
      ],
    }),
    new ModuleFederationPlugin({
      name: "remote",
      filename: "remotePokedex.js",
      remotes: {},
      exposes: {
        "./pokeRoot": "./src/index.jsx",  
        "./pokedex": "./src/routes/Router.jsx",
        "./pokeHome": "./src/pages/Home/Home.jsx",
        "./pokeProvider": "./src/contexts/PokemonProvider.jsx",
      },
      shared: {
        // ...deps,
        react: {
          singleton: true,
          eager: true,
          requiredVersion: deps.react,
        }, 
        "react-dom": {
          singleton: true,
          requiredVersion: deps["react-dom"],
          eager: true,
        },
      },
    }),
    new HelloAsyncPlugin({ options: true }),
    compress &&
      new CompressionPlugin({
        algorithm: "brotliCompress",
        test: /\.(js|css|html|svg)$/,
      }),
  ].filter(Boolean),
});

module.exports = (env) => merge(baseConfig(env), configMode(env));