Introduction
Module Federation is one of Webpack 5's most powerful features. It allows multiple JavaScript applications to share code and components at runtime.
What is Module Federation
It's a Webpack 5 plugin that lets you load code from a remote application as if it were a local module. Each application can expose and consume modules from other apps.
Ideal Use Cases
Micro-frontends where each team develops their own independent application, but all integrate into a unified user experience.
Basic Configuration
Define which modules you expose with exposes and which you consume with remotes. The plugin generates an additional entry point that other apps can consume.
Shared Dependencies
Share dependencies like React or Vue between applications to avoid duplication. Module Federation ensures only one version of each shared library loads.
Production Considerations
Implement versioning, fallbacks when a remote isn't available, and consider the impact on the initial bundle.
Conclusion
Module Federation changes web application architecture. At Vynta, we design micro-frontend systems with Module Federation for scalable teams.