webpack.config.js

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

module.exports = {
  entry: './app/index.tsx',
  output: {
    path: path.resolve(process.cwd(), 'dist'),
    filename: 'index_bundle.js',
  },
  devtool: 'eval-source-map',
  module: {
    rules: [
      {
        test: /\.(ts|tsx)$/,
        loader: 'awesome-typescript-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.js$/,
        enforce: 'pre',
        loader: 'source-map-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.jsx?/,
        use: 'babel-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.s?css$/,
        use: ['style-loader', 'css-loader', 'sass-loader'],
        exclude: /node_modules/,
      },
      {
        test: /\.(jpg|jpeg|png|ttf|svg)$/,
        use: [
          'file-loader',
          {
            loader: 'image-webpack-loader',
            options: {
              mozjpeg: {
                quality: 10,
              },
            },
          },
        ],
        exclude: /node_modules/,
      },
    ],
  },
  mode: 'development',
  devServer: {
    hot: true,
    historyApiFallback: true,
    contentBase: path.resolve(process.cwd(), 'app'),
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: 'app/index.html',
    }),
  ],
  resolve: {
    extensions: ['.js', '.jsx', '.ts', '.tsx'],
  },
};