Module federation
We implement Module Federation: a mechanism that lets different, separately built applications share code and modules at runtime (e.g. loading one app's components into another). It is the technical foundation of microfrontends. Honestly upfront: Module Federation solves a real task of sharing code between independent apps/teams, but it is a COMPLEX mechanism with pitfalls (shared-dependency version conflicts, runtime coupling, debugging); it is needed only with a genuine multi-app/multi-team need; for a single app or a monolith it is EXCESSIVE; and by itself it gives no benefit without an organizational reason. We implement it where there is a real sharing task, not for microfrontends 'by fashion'.
Module federation — overview
Module Federation is a mechanism (popularized by Webpack 5, also in other bundlers) that lets separately built and deployed applications share code at runtime: one app can load another's modules/components at runtime, and they can jointly use shared dependencies. It is the technical foundation on which microfrontends (1064) are usually implemented. The goal is code reuse between independent apps without duplication and without rebuilding all when one changes. Honestly about 'a mechanism for a real task': Module Federation is justified when you genuinely have several separate apps/teams needing to share code or assemble into one (microfrontends). It is a tool for a specific architectural/organizational need. For a single app, a monolith or a simple project it is not needed — ordinary import/build is simpler and more reliable. We will honestly assess whether you have a sharing task. Honestly about the pitfalls, this matters: the main complexity is shared dependencies and their versions. If apps use different versions of a shared library, conflicts, duplication or runtime breakage are possible. Runtime coupling appears (one app depends on another at runtime — one's failure/incompatibility can break another), debugging is harder (code is loaded dynamically from different sources), versioning and compatibility questions. This requires careful setup and discipline. Honestly about 'no benefit by itself': Module Federation is a means, not an end. Without a real organizational/architectural reason (several teams/apps) it brings no benefit, only adds complexity. Implementing it 'to have microfrontends' without a need for them is over-engineering. Honestly about the effect: with a genuine multi-app task it gives code sharing and independent builds, but it is a complex mechanism justified by need. Honestly about access: several apps/teams, a compatible bundler are needed. An important boundary: this is Module Federation (the sharing mechanism); microfrontends (the architecture on it) — 1064; ordinary build/monolith — the norm for a single app. Picture this: instead of 'duplicating code or rebuilding everything for one change' — runtime module sharing, ONLY with a real task. The base price starts from 70,000 ₽ (depends on the number of apps).
Problems we solve
- Several apps duplicate shared code or all rebuild for one change.
- Sharing components between independent apps/teams is needed.
- You want Module Federation but there is no real sharing task (excessive).
- Shared-dependency version conflicts break the runtime.
What's included in the Module federation service
- An honest assessment: is there a real code-sharing/microfrontends task
- Module Federation implementation (runtime module sharing, shared dependencies)
- Managing shared-dependency versions (against conflicts)
- Accounting for runtime coupling and debugging
- Honest boundaries (for multi-app/multi-team tasks; excessive for one app; version pitfalls; no benefit without a reason)
- A link with microfrontends (1064)
- A versioning and compatibility plan
- Handover and review with you
What you get
- Code reuse between independent apps (with a real task)
- Independent builds without duplication
- Managed shared-dependency versions
- Honest boundaries (for a real sharing task; not for one app; version complexity)
How the work goes: steps
- We assess whether there is a real sharing/microfrontends task
- If yes — we implement Module Federation with version management
- If not — we recommend an ordinary build, honestly set boundaries with you
Why PDV Expert
- Fixed price and timeline — no surprises on the invoice.
- Report and recommendations in plain language — clear without a technical background.
- In touch at every step and answering questions about the result.
FAQ
Is Module Federation needed for a modern frontend?
No, honestly: it is a mechanism for a specific task — sharing code between several separate apps/teams (the foundation of microfrontends). For a single app, a monolith or a simple project it is not needed — ordinary import and build are simpler and more reliable. Without a real multi-app/multi-team need Module Federation is over-engineering. We will honestly assess whether you have a sharing task.
Won't there be dependency problems with Module Federation?
There will be if not managed, honestly: the main pitfall is shared dependencies and their versions. Different versions of a shared library across apps give conflicts, duplication or runtime breakage. Plus runtime coupling: one app's failure/incompatibility can break another. Careful version setup and discipline are needed. We honestly build this in rather than pass Module Federation off as trouble-free sharing.
Will Module Federation improve the project by itself?
No, honestly: it is a means, not an end. Without a real organizational/architectural reason (several teams/apps, sharing needed) it brings no benefit — only adds complexity (versions, runtime coupling, debugging). Implementing it 'to have microfrontends' without a need for them is over-engineering. We implement Module Federation where there is a real task, not for the mechanism's sake.
About the provider
The «Module federation» service is provided by PDV Expert — a team specialising in «Tech trends». We work under contract and deliver a written report with recommendations.