webpack.config.js

const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");

// Create index.html file that has <script> with src ='/build/bundle.js' injected into it!!!
const htmlWebpackPluginConfig = new HtmlWebpackPlugin({
  template: "./index.html",
});

module.exports = {
  entry: "./client/index.js",
  output: {
    path: path.join(__dirname, "/build"),
    filename: "bundle.js",
  },
  mode: process.env.NODE_ENV,
  module: {
    rules: [
      {
        test: /\.jsx?/,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader",
          options: {
            presets: ["@babel/preset-env", "@babel/preset-react"],
          },
        },
      },
      {
        // css-loader interprets @import and url() like import/require() and will resolve them.
        test: /\.css/,
        use: ["style-loader", "css-loader"],
      },
      {
        test: /\.(png|jpe?g|gif)$/i,
        use: [
          {
            loader: "file-loader",
          },
        ],
      },
    ],
  },
  plugins: [htmlWebpackPluginConfig],
  devServer: {
    static: {
      publicPath: "/build/",
    },
    port: 8080,
    proxy: {
      "/compliments": "http://localhost:3000",
      "/users": "http://localhost:3000",
    },
    historyApiFallback: true,
  },
};