webpack.config.js

const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const NodePolyfillPlugin = require("node-polyfill-webpack-plugin");
const Dotenv = require("dotenv-webpack");
const { CleanWebpackPlugin } = require("clean-webpack-plugin");

module.exports = {
  mode: "development",
  devServer: {
    port: 3000,
    hot: true,
  },
  entry: "./src/index.js",
  output: {
    filename: "bundle.js",
    path: path.resolve(__dirname, "dist"),
  },
  resolve: {
    fallback: {
      path: require.resolve("path-browserify"),
      os: require.resolve("os-browserify/browser"),
      crypto: require.resolve("crypto-browserify"),
    },
    extensions: [".js", ".mjs", ".css"],
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: [
          {
            loader: "babel-loader",
            options: {
              presets: ["@babel/preset-env"],
            },
          },
        ],
      },
      {
        test: /\.css$/,
        use: ["style-loader", "css-loader"],
      },
    ],
  },
  plugins: [
    new Dotenv(),
    new NodePolyfillPlugin(),
    new CleanWebpackPlugin(),
    new HtmlWebpackPlugin({
      template: "./index.html",
    }),
  ],
  devtool: "inline-source-map",
};