webpack.config.js

/* eslint-disable */
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');

module.exports = {
  entry: ['./client/index.js'],
  output: {
    path: path.resolve(__dirname, 'dist'),
    publicPath: '/dist/',
    filename: 'bundle.js',
  },
  mode: process.env.NODE_ENV,
  devServer: {
    // match the output path
    contentBase: path.resolve(__dirname, 'client'),
    // enable HMR on the devServer
    hot: true,
    watchContentBase: true,
    // match the output 'publicPath'
    publicPath: '/dist/',
    // fallback to root for other urls
    historyApiFallback: true,
    inline: true,
    headers: { 'Access-Control-Allow-Origin': '*' },
    proxy: {
      '/server': {
        target: 'http://localhost:3000/',
        secure: false,
      },
    },
  },
  module: {
    rules: [
      {
        test: /\.(png|jpe?g|gif)$/i,
        use: [
          {
            loader: 'file-loader',
          },
        ],
      },
      {
        test: /.(js|jsx)$/,
        exclude: /node_modules/,
        loader: 'babel-loader',
        options: {
          presets: ['@babel/preset-env', '@babel/preset-react'],
        },
      },
      {
        test: /.(css|scss)$/,
        exclude: /node_modules/,
        use: [MiniCssExtractPlugin.loader, 'css-loader', "sass-loader"],
      },
    ],
  },
  plugins: [
    new MiniCssExtractPlugin(),
    new CleanWebpackPlugin(),
    new HtmlWebpackPlugin({
      template: './client/index.html',
    }),
  ],
  resolve: {
    // Enable importing JS / JSX files without specifying their extension
    extensions: ['.js', '.jsx'],
  },
};