webpack.config.js

const webpack = require('webpack');
const { CheckerPlugin } = require('awesome-typescript-loader');
const CopyWebpackPlugin = require('copy-webpack-plugin');
const HtmlWebPackPlugin = require('html-webpack-plugin');

const ASSET_PATH = process.env.ASSET_PATH || '/';

module.exports = {
  devtool: 'inline-source-map',
  entry: './src/index.tsx',
  resolve: {
    extensions: ['.ts', '.tsx', '.js'],
  },
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        loader: 'awesome-typescript-loader',
      },
    ],
  },
  output: {
    publicPath: ASSET_PATH,
  },
  plugins: [
    new CheckerPlugin(),
    new webpack.DefinePlugin({
      'process.env.ASSET_PATH': JSON.stringify(ASSET_PATH),
    }),
    new CopyWebpackPlugin([
      {
        from: 'public',
      },
    ]),
    new HtmlWebPackPlugin({
      template: './public/index.html',
      filename: './index.html',
    }),
  ],
};