webpack.config.js

const path = require('path');
const webpack = require('webpack');

module.exports = {
  entry: './src/index.jsx',
  mode: 'development',
  module: {
    rules: [
      { parser: { requireEnsure: false } },
      {
        test: /\.(js|jsx|ts|tsx)$/,
        enforce: 'pre',
        use: [
          {
            options: {
              cache: true,
              eslintPath: 'eslint',
              resolvePluginsRelativeTo: __dirname,
            },
            loader: 'eslint-loader',
          },
        ],
      },
      {
        test: /\.(js|jsx)$/,
        loader: 'babel-loader',
        exclude: /node_modules/,
        include: /src/,
      },
      {
        test: /\.(js|jsx)$/,
        use: 'react-hot-loader/webpack',
        include: /node_modules/,
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader'],
      },
    ],
  },
  resolve: {
    extensions: ['*', '.js', '.jsx'],
    alias: {
      app: path.resolve(__dirname, 'src/app/'),
      components: path.resolve(__dirname, 'src/components/'),
      pages: path.resolve(__dirname, 'src/pages/'),
      routes: path.resolve(__dirname, 'src/routes/'),
      services: path.resolve(__dirname, 'src/services/'),
      utils: path.resolve(__dirname, 'src/utils/'),
    },
  },
  output: {
    path: path.resolve(__dirname, 'dist/'),
    publicPath: '/dist/',
    filename: 'bundle.js',
  },
  devServer: {
    contentBase: path.join(__dirname, 'public/'),
    port: 3000,
    publicPath: 'http://localhost:3000/dist/',
    historyApiFallback: true,
    hotOnly: true,
  },
  plugins: [new webpack.HotModuleReplacementPlugin()],
};