Observed Signal · May 1, 2026 · Technical Guide · Source: DEV Community · Impact: 2/5 · Sentiment: Positive
Shared Redux Store for Next.js Module Federation
A technical guide published May 1, 2026 by Srinu explains how to share a single Redux store across hybrid microfrontends where React remotes (ModuleFederationPlugin) are loaded inside a Next.js host (NextFederationPlugin). The post describes the correct contract (a federated Redux singleton packaged as @myapp/store), configuration details for singleton + strictVersion in host and remotes, why to use a ClientReduxProvider with ssr:false, and how to avoid SSR hydration traps. It includes complete package code examples, a five-step Module Federation runtime negotiation explanation, seven common gotchas, and a debugging tip: use Redux DevTools to confirm exactly one store instance.
Practical technical guidance that helps developers fix a common Module Federation + Next.js Redux bug; useful to engineering teams building hybrid microfrontends but not industry-shifting.
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Key Takeaways & Evidence Grounding
- Author provides a complete @myapp/store package containing configureStore, slices, and re-exported react-redux primitives to create a federated Redux singleton.
- The recommended pattern: host imports and creates the store, wraps the app in a provider, and remotes import useSelector/useDispatch from the same shared package so Module Federation reuses the host's instance.
- The article documents configuration details for the shared block in host next.config.js and remotes (webpack.config.js or next.config.js), including singleton: true and strictVersion settings.
- It warns that importing the store at the top of _app.tsx breaks server builds and recommends a ClientReduxProvider with ssr: false to avoid SSR/hydration traps.
- The guide details a five-step Module Federation runtime negotiation and lists seven common 'gotchas' plus a state decision matrix (federated store vs local state vs URL params vs TanStack Query).
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