webpack.config.js

const path = require("path");
const { BundleAnalyzerPlugin } = require("webpack-bundle-analyzer");
const TerserPlugin = require("terser-webpack-plugin");

module.exports = {
  mode: "production",
  entry: "./src/index.js",
  output: {
    filename: "bundle.js",
    path: path.resolve(__dirname, "build"),
  },
  resolve: {
    extensions: [".js", ".jsx"],
    alias: {
      "homepage-contact-form": path.resolve(
        __dirname,
        "src/routes/homepage/homepage-contact/HomepageContactForm.js"
      ),
    },
  },
  optimization: {
    usedExports: true,
    splitChunks: {
      chunks: "all",
    },
    minimize: true,
    minimizer: [new TerserPlugin()],
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader",
          options: {
            presets: ["@babel/preset-env", "@babel/preset-react"],
          },
        },
      },
      {
        test: /\.(png|jpe?g|gif|svg|webp)$/i,
        use: [
          {
            loader: "file-loader",
            options: {
              name: "[path][name].[ext]",
            },
          },
        ],
      },
      {
        test: /\.(pdf)$/,
        use: [
          {
            loader: "file-loader",
          },
        ],
      },
      {
        test: /\.(woff|woff2|ttf|eot)$/,
        use: [
          {
            loader: "file-loader",
          },
        ],
      },
      {
        test: /\.(mp4|mov)$/i,
        use: [
          {
            loader: "file-loader",
            options: {
              name: "[path][name].[ext]",
            },
          },
        ],
      },
      {
        test: /\.css$/i,
        use: ["style-loader", "css-loader"],
      },
    ],
  },
  plugins: [new BundleAnalyzerPlugin()],
  devtool: "source-map",
};