webpack.config.tsx

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

const config = {
  mode: "production",
  entry: {
    index: "./src/index.ts",
  },
  output: {
    filename: "bundle.js",
    path: path.resolve(__dirname, "dist"),
    libraryTarget: "commonjs2",
    clean: true,
  },
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        use: [
          {
            loader: "ts-loader",
            options: {
              configFile: "tsconfig.json",
            },
          },
        ],
        include: [path.resolve(__dirname, "src")],
        exclude: [path.resolve(__dirname, "test")],
      },
    ],
  },
  resolve: {
    extensions: [".tsx", ".ts", ".js"],
  },
  optimization: {
    minimize: true,
    concatenateModules: true,
    splitChunks: {
      cacheGroups: {
        default: false,
        vendors: false,
      },
    },
  },
  externals: {
    react: {
      commonjs: "react",
      commonjs2: "react",
      amd: "react",
      root: "React",
    },
    "react-dom": {
      commonjs: "react-dom",
      commonjs2: "react-dom",
      amd: "react-dom",
      root: "ReactDOM",
    },
  },
  target: "node",
};

module.exports = config;