Module Federation Introduction
Webpack's Module Federation enables separate builds to form a single application. It's revolutionary for micro-frontends, allowing dynamic code sharing at runtime without increasing bundle sizes or sacrificing independence between teams.
Core Concepts
Key concepts include 'host' and 'remote'. A host is an application that loads code from a remote. The remote encapsulates its exposed modules, allowing the host to consume them as if they were local dependencies.
Configuration Steps
To implement, modify Webpack's config: define a ModuleFederationPlugin instance, specify 'name', 'filename', and 'exposes' for remotes, or 'remotes' for hosts. Adjust accordingly to serve your architecture's needs.
Shared Dependencies
Module Federation allows sharing of dependencies. Use the 'shared' property to avoid loading multiple versions of the same module, reducing overall application size and ensuring consistency across your federated modules.
Dynamic Remote Containers
Leverage dynamic expressions in 'remotes' configuration to load federated modules at runtime. This allows for late-binding of code, giving you the flexibility to update independently without redeploying every consumer.
Fallback and Error Handling
Implement fallbacks and error handling for robust applications. Ensure the host can respond gracefully if a remote module fails to load, providing a seamless user experience despite potential service disruptions.
Performance Considerations
Efficiently use Module Federation by analyzing bundle sizes and loading strategies. Consider splitting code, prefetching, and caching to optimize performance and enhance the user's interaction with your federated modules.
What enables dynamic code sharing in micro-frontends?
Bundle size optimizations
Module Federation
Independent team structures
Company
