webpack.config.js

// Generated using webpack-cli https://github.com/webpack/webpack-cli

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');

const isProduction = process.env.NODE_ENV === 'production';

const stylesHandler = MiniCssExtractPlugin.loader;

const config = {
  entry: './src/client/index.js',
  output: {
    path: path.resolve(__dirname, 'dist'),
  },
  devServer: {
    open: true,
    host: 'localhost',
    contentBase: path.join(__dirname, 'dist'),
    // publicPath: '/dist/',
    proxy: {
      '/user': {
        target: 'http://localhost:3000/',
      },
      '/post': {
        target: 'http://localhost:3000/',
      },
    },
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: './src/client/index.html',
    }),
    new MiniCssExtractPlugin(),
  ],
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/i,
        exclude: /(node_modules|bower_components)/,
        loader: 'babel-loader',
      },
      {
        test: /\.css$/i,
        use: [stylesHandler, 'css-loader'],
      },
      {
        test: /\.(eot|svg|ttf|woff|woff2|png|jpg|gif)$/i,
        type: 'asset',
      },
    ],
  },
  resolve: {
    // Enable importing JS / JSX files without specifying their extension
    extensions: ['.js', '.jsx'],
  },
};

module.exports = () => {
  if (isProduction) {
    config.mode = 'production';
  } else {
    config.mode = 'development';
  }
  return config;
};