Module Federation vs Monorepo

vs Monorepo Overview

At its core, vs monorepo is about doing one thing well inside your Module Federation project. Once you understand the pattern, you can apply it consistently across features and teams.

Good vs monorepo pays off across the whole codebase: fewer surprises, easier testing, and smoother onboarding. The snippet below is a solid starting point.

const { ModuleFederationPlugin } = require('webpack').container;

module.exports = {
  plugins: [
    new ModuleFederationPlugin({
      name: 'shell',
      remotes: { catalog: 'catalog@http://localhost:3001/remoteEntry.js' },
      exposes: {},
      shared: { react: { singleton: true }, 'react-dom': { singleton: true } },
    }),
  ],
};

ModuleFederationPlugin configures which modules an app exposes, consumes, and shares.

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

Module Federation Cheatsheet

Key Module Federation settings related to vs monorepo.

How vs Monorepo Works in Module Federation

vs Monorepo 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.

ModuleFederationPlugin configures which modules an app exposes, consumes, and shares.

• 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 vs Monorepo

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

Key Takeaways

• vs Monorepo is a core part of working effectively with Module Federation.
• Start small and keep vs monorepo focused on a single responsibility.
• Apply consistent patterns so vs monorepo scales across your project.
• Test and document vs monorepo to keep it maintainable over time.