webpack.config.js

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

module.exports = {
  entry: path.join(__dirname, './client/index.tsx'),
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'bundle.js'
  },
  mode: 'development',
  resolve: {
    extensions: ['.js', '.jsx', '.ts', '.tsx']
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: './client/index.html'
    })
  ],
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        enforce: 'pre',
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env', '@babel/preset-react']
          }
        }
      },
      {
        test: /\.(ts|tsx)$/,
        exclude: /node_modules/,
        use: ['ts-loader']
      }
    ]
  },
  devServer: {
    static: {
      directory: path.join(__dirname, './dist')
    },
    historyApiFallback: true,
    port: 8080,
    hot: true,
    compress: true,
    proxy: {
      '/**': 'http://localhost:3000'
    },
    watchFiles: ['client/**']
  }
};