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Decide between standard Redux reducers and Redux Toolkit (RTK). Learn how Immer simplifies nested state updates and when to prioritize manual immutability for performance.
Learn how to use Redux Toolkit's createSlice and createAsyncThunk to eliminate boilerplate and build a type-safe, immutable state architecture with clear data boundaries.
Learn how Redux Toolkit's createSlice cuts boilerplate, lets you write mutable‑style reducers safely with Immer, and integrates async thunks—plus the trade‑offs to watch.
Learn how createSlice generates action creators and reducers, integrates with Immer, and works with DevTools—plus the trade‑offs to watch for.
Redux Toolkit's createSlice, powered by Immer, collapses the classic constants/actions/reducer ceremony into one file where reducers read like mutations but stay immutable. Here's how it works and what to watch for.
I'm wiring up RTK Query (via createApi in Redux Toolkit) and want queries to refetch when the browser window regains focus. The documentation describes refetchOnFocus as opt-in, and that setupListeners(store.dispatch) must be called for focus/reconnect events to reach the store. My uncertainty is about how the pieces interact before I commit to a configurati
Transitioning to createSlice Architecture Migrating a legacy Redux codebase to Redux Toolkit (RTK) involves shifting from manual action-type constants and switch-case reducers to the createSlice API. While RTK integrates Immer to allow mutating-style logic, legacy reducers still require strict immutability to prevent state corruption. A technical uncertainty
When using Redux Toolkit 2.0's createAsyncThunk with an AbortSignal , the thrown AbortError is transformed into a rejected action whose error.message is set to "Aborted". The library does not automatically reset loading flags or other UI state tied to the request, leaving it to developers to dispatch a separate cleanup action or to interpret the rejected act
State Migration Strategy A small React application is migrating from local component state to Redux Toolkit. To maintain zero-downtime deployments, the migration must support a hybrid state model where some features use the global store while others remain on local state. Integration Patterns Two documented patterns are under consideration for this rollout:
redux
javascript
react