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    @rockpack/compiler is React bundler (based on Webpack) using a set of necessary loaders, plugins and using the best practices out of the box.

    @rockpack/compiler this module is part of the Rockpack project. See more details on the official site.

    @rockpack/compiler can help you with:

    • Compile your React application (TS/Babel)
    • Compile React Component or VanillaJS UMD library (TS/Babel)
    • Nodejs backend (TS/Babel)
    • Markup html files
    • Compile isomorphic (Server-side rendering) application (TS/Babel)
    • Bundle analyze (TS/Babel)


    • Webpack 5+, Webpack-dev-server 4+
    • TypeScript support
    • Babel 7, Babel-preset-env (> 5%)
    • Support build nodejs scripts with nodemon
    • Hot Module Replacement for SPA
    • Livereload for SSR
    • Source maps and Extended dev mode
    • Dotenv support and Dotenv safe support
    • React optimizations
    • Monorepo support
    • Write file webpack plugin (in dev mode)
    • Copy Webpack Plugin
    • ESLint support
    • Templates: HTML/Jade/Handlebars
    • CSS: CSS/SASS (dart-sass)/LESS + Postcss
    • Postcss, Autoprefixer
    • CSS Modules support
    • Imagemin
    • Formats support: Markdown, Video, Audio, Fonts, SVG, Script, Shaders etc
    • SVG + SVGO, SVGR (import SVG like React Component)
    • Antd optimizations (With optimizations: auto replace momentjs to dayjs, import antd)
    • Terser minification
    • Generate stats.json (in production mode)
    • SEO Optimizations
    • Bundle Analyze (webpack-bundle-analyzer, Statoscope)
    • Isomorphic compile support (include isomorphic styles, isomorphic dynamic imports - @loadable)
    • Vendor array splitting support (You can set dependency libraries to this array to split it on separate vendor.js file)
    • MD/MDX support
    • GraphQL support (webpack-graphql-loader)
    • Сross-env included


    create-react-app like bundling example:

    1. Installation:
    # NPM
    npm install @rockpack/compiler --save-dev
    # YARN
    yarn add @rockpack/compiler --dev
    1. Make build.js in the root of project

    2. Put the code:

    const { frontendCompiler } = require('@rockpack/compiler');
    1. Run build.js:
    cross-env NODE_ENV=development node build

    For production build you need run

    cross-env NODE_ENV=production node build

    Your app will be built, minified, and optimized for production.


    @rockpack/compiler includes compilers:

    const {
    } = require('@rockpack/compiler');

    frontendCompiler(options[optional], callback[optional]);

    frontendCompiler will build a create-react-app style React app (Babel / TypeScript)

    Options - The settings object is the same for each compiler type:

    Prop Value[Default value] Description
    dist String['./dist'] The path for compiled app, by default dist
    src String['./src'] The path for application source. By default "src", where will be find index.{js|jsx|ts|tsx}
    debug Boolean[false] Debug option. Save source maps. It helps to find difficult bugs in minified code in production mode
    html Boolean/Object[undefined] This setting will activate Html webpack plugin. You can override the default index.ejs template. Example: { title: String, favicon: String[path to favicon], template: String[path_to_template] }
    port Number[3000] webpack-dev-server's port
    styles String[undefined] The path for CSS extraction (mini-css-extract-plugin)
    banner String[undefined] This parameter allows you to add a banner to JS and CSS files
    global Object[undefined] Allows forcing global variables using webpack.ProvidePlugin
    copy Object/Array[undefined] Copies files and folders using copy-webpack-plugin. Format: {from: ... to: ...} or [] or {files: [], opts: {}}
    const { frontendCompiler } = require('@rockpack/compiler');
      dist: 'public',
      src: 'src/main.js',
      debug: true,
      html: {
        title: 'New app',
        favicon: './favicon.ico',
        template: './index.ejs' // Supports html, hbs, ejs
      port: 8900

    Callback - each compiler has the last parameter - callback. This is a function in which you can override the properties of the generated webpack config.

    In this example, alias will be extended via a callback function

    const { frontendCompiler } = require('@rockpack/compiler');
    frontendCompiler({}, webpackConfig => {
      Object.assign(finalConfig.resolve, {
        alias: {
          react: '<path to react>'

    backendCompiler(options[optional], callback[optional]);

    Compiles a Node.js application. When you run this compiler with NODE_ENV development, nodemon will be launched to restart the application after changes

    const { backendCompiler } = require('@rockpack/compiler');
    backendCompiler(options, webpackConfig => {
      Object.assign(finalConfig.resolve, {
        alias: // add some aliases

    libraryCompiler(libraryName[needed], options[optional], callback[optional]);

    Compile React Component or VanillaJS UMD library

    const { libraryCompiler } = require('@rockpack/compiler');
    libraryCompiler('MyLib', options);

    libraryName может принимать объект с дополнительными настройками:

    const { libraryCompiler } = require('@rockpack/compiler');
      name: 'MyLib',
      cjs: {
        src: './src',
        dist: './lib/cjs'
      esm: {
        src: './src',
        dist: './lib/esm'
      externals: [
    }, options);

    markupCompiler(paths[needed], options[optional], callback[optional]);

    Allows to process HTML files (HTML, handlebars, jade). Useful for markup

    const { markupCompiler } = require('rocket-starter');
      './src/**/*.{html,hbs,jade,njk}', // Glob format supported
      webpackConfig => {
        Object.assign(finalConfig.resolve, {
          alias: // add some aliases


    Compiles an SSR application.

    const { isomorphicCompiler, backendCompiler, frontendCompiler } = require('rocket-starter');
        src: 'src/client.jsx',
        dist: 'public',
        src: 'src/server.jsx',
        dist: 'dist',

    You can see more examples in "examples" folder - here


    How do I activate TypeScript?

    How do I activate Eslint?

    • It's enough to put .eslintrc.js or .eslintrc.development.js for DEV mode or .eslintrc.production.js for PRODUCTION mode in the root with @rockpack/compiler

    How do I extend PostCSS?

    • It's enough to put postcss.config.js in the root with @rockpack/compiler

    Can I extend the webpack.config generated by @rockpack/compiler?

    • Sure! This is one of the fundamental differences from create-react-app, out of the box extensibility without eject
    • An example to work with Elm:
    const { frontendCompiler } = require('@rockpack/compiler');
    const WebpackNotifierPlugin = require('webpack-notifier');
      banner: true,
      styles: 'style.css',
      vendor: ['react', 'react-dom', 'core-js']
    }, (config, modules, plugins) => {
      config.resolve.extensions = ['.js', '.elm'];
      modules.set('elm', {
        test: /\.elm$/,
        exclude: [/elm-stuff/, /node_modules/],
        use: process.env.NODE_ENV === 'development' ? [
          { loader: 'elm-hot-webpack-loader' },
            loader: 'elm-webpack-loader',
            options: {
              forceWatch: true
        ] : [
            loader: 'elm-webpack-loader',
            options: {
              optimize: true
      plugins.set('WebpackNotifierPlugin', new WebpackNotifierPlugin());

    How to make Rockpack save changes to HDD on DEV build?

    • Need to add to config write: true

    How do I process the TypeScript library to keep the sources?

    • libraryCompiler takes as the first parameter not only the string-name of the library, but also an object with parameters
      name: 'Color',
      cjs: {
        src: './src',
        dist: './lib/cjs'
      esm: {
        src: './src',
        dist: './lib/esm'

    TypeScript sources will be saved in ESM and CJS format at the specified path.

    How to work with CSS (SCSS, LESS) Modules?

    • You need to rename the file with modular styles to the format [filename].module.scss
    import styles from './App.module.css';
    <div className={styles.App}>

    CSS Modules support TypeScript with generating definitions - @teamsupercell/typings-for-css-modules-loader

    The MIT License



    npm i @rockpack/compiler

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