Common Federation Mistakes

Common Federation Mistakes Overview

Common Federation Mistakes lets you structure Module Federation work so it stays readable, testable, and easy to scale. Instead of ad-hoc code, you follow a clear pattern that other developers can recognise immediately.

The key is to keep common federation mistakes focused and predictable. Start from the minimal example here, then layer in only the complexity your feature actually needs.

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.

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

Module Federation Cheatsheet

Key Module Federation settings related to common federation mistakes.

How Common Federation Mistakes Works in Module Federation

Common Federation Mistakes 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 Common Federation Mistakes

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

Common Mistakes

• Skipping error handling and edge cases when wiring up common federation mistakes.
• Leaving common federation mistakes untested, so regressions slip into production.
• Over-engineering common federation mistakes before you actually need the extra flexibility.
• Ignoring documentation, which makes common federation mistakes hard for the next developer to change.

Key Takeaways

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