webpack.config.ts

import * as path from "path";
import server from "./server";
import webpack from "webpack";

const config: webpack.Configuration = {
  entry: "./src/index.tsx",
  output: {
    path: path.join(__dirname, "/dist"),
    filename: "bundle.js",
    publicPath: "/dist/"
  },
  watch: true,

  // Enable sourcemaps for debugging webpack's output.
  devtool: "source-map",

  resolve: {
    // Add '.ts' and '.tsx' as resolvable extensions.
    extensions: [".ts", ".tsx", ".js", ".json"]
  },

  devServer: {
    historyApiFallback: true,
    compress: true,
    before: app => server(app)
  },

  module: {
    rules: [
      {
        test: /\.tsx?$/,
        include: path.resolve(__dirname, "src"),
        exclude: /node_modules/,
        loader: "ts-loader"
      },
      {
        test: /\.css$/,
        use: ["style-loader", "css-loader"]
      },
      // All output '.js' files will have any sourcemaps re-processed by 'source-map-loader'.
      { enforce: "pre", test: /\.js$/, loader: "source-map-loader" }
    ]
  }

  // When importing a module whose path matches one of the following, just
  // assume a corresponding global variable exists and use that instead.
  // This is important because it allows us to avoid bundling all of our
  // dependencies, which allows browsers to cache those libraries between builds.
};

export default config;