How Micro-Frontends and Webpack Module Federation Fix Frontend Monolith Problems

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Large enterprise web applications often suffer from 'frontend monolith' problems, where dozens of teams share a single codebase, causing build times exceeding 30 minutes and deployment bottlenecks across teams. Micro-frontend architecture addresses this by allowing independent teams to build, test, and deploy separate UI segments autonomously, mirroring the microservices approach used on the backend. Webpack 5 introduced Module Federation, a feature that enables a JavaScript application to dynamically load code from another application at runtime without requiring a full rebuild of the host app. In Next.js, this is implemented using the @module-federation/nextjs-mf plugin, which designates apps as either a host shell or remote application, each configured independently. This setup lets teams like Checkout or Marketing expose and consume specific components across apps seamlessly, reducing inter-team dependencies and accelerating deployment cycles.

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ProgrammingDEV Community ·

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