React Remote Application

React Remote Application Overview

React Remote Application is a building block you will reach for often in Module Federation. It keeps related logic together and makes your intent obvious to reviewers and future maintainers.

When you learn react remote application properly, you avoid the guesswork that leads to bugs and rework. The example below shows the shape you will use in most real Module Federation projects.

// remote (webpack.config.js)
const { ModuleFederationPlugin } = require('webpack').container;

module.exports = {
  plugins: [
    new ModuleFederationPlugin({
      name: 'catalog',
      filename: 'remoteEntry.js',
      exposes: {
        './ProductList': './src/ProductList',
      },
      shared: ['react', 'react-dom'],
    }),
  ],
};

A remote exposes modules through remoteEntry.js so hosts can load them at runtime.

React Remote Application Example

new ModuleFederationPlugin({
  name: 'app',
  filename: 'remoteEntry.js',
  exposes: { './Widget': './src/Widget' },
  remotes: { other: 'other@http://host/remoteEntry.js' },
  shared: { react: { singleton: true } },
});

• Start from a minimal React Remote Application example and grow it only as needed.
• Keep configuration explicit so React Remote Application behaves the same in every environment.
• Name things clearly so teammates understand your React Remote Application at a glance.
• Add tests around React Remote Application early to lock in expected behaviour.

Module Federation Cheatsheet

Key Module Federation settings related to react remote application.

How React Remote Application Works in Module Federation

React Remote Application builds on Module Federation's ability to load code from another independently built and deployed application at runtime. Each app can be a host, a remote, or both.

A remote exposes modules through remoteEntry.js so hosts can load them at runtime.

• Remotes expose modules through a remoteEntry.js manifest.
• Hosts declare remotes and import exposed modules dynamically.
• Shared dependencies are deduplicated, ideally as singletons.
• Each micro frontend builds and deploys on its own schedule.

Practical Guidance for React Remote Application

In production, react remote application needs careful version management and graceful failure handling. Align shared dependency versions and always render a fallback when a remote cannot load.

Common Mistakes

• Copying react remote application snippets without understanding what each line does.
• Skipping error handling and edge cases when wiring up react remote application.
• Leaving react remote application untested, so regressions slip into production.
• Over-engineering react remote application before you actually need the extra flexibility.

Key Takeaways

• React Remote Application is a core part of working effectively with Module Federation.
• Start small and keep react remote application focused on a single responsibility.
• Apply consistent patterns so react remote application scales across your project.
• Test and document react remote application to keep it maintainable over time.