1. Architectural Overview of Micro-Frontends
As enterprise web applications scale to hundreds of engineers, single monolithic frontend repositories often suffer from build bottlenecking, complex git merge conflicts, and delayed release cycles. Micro-frontends decompose large user interfaces into independent, autonomous sub-applications.
2. Module Federation with Webpack and Vite
Module Federation enables a host application to dynamically import remote JavaScript bundles at runtime over HTTP without bundling them at build time.
// host/webpack.config.js
module.exports = {
plugins: [
new ModuleFederationPlugin({
name: 'host',
remotes: {
checkout: 'checkout@https://cdn.example.com/remoteEntry.js',
},
shared: ['react', 'react-dom'],
}),
],
};3. Shared Dependency Management
To avoid downloading duplicate copies of core libraries like React or Tailwind, Module Federation coordinates singletons across remote applications, ensuring high page speed performance and lower memory usage.
4. Testing & Continuous Deployment
Each micro-frontend team can deploy updates independently to production without rebuilding or re-testing unrelated areas of the main site.
