Phase 9 · State Management
TopicsReact Query (TanStack Query)
Part of the Frontend Developer Roadmap.
Summary
A library specifically for server-state — fetching, caching, background-refetching and syncing API data — that eliminates most manual loading/error/cache logic.
How to Learn This
- 1Replace a manual `useEffect` + `fetch` pattern with `useQuery`.
- 2Learn how automatic caching and refetch-on-focus change your app's behavior.
- 3Use `useMutation` for POST/PUT/DELETE requests with cache invalidation.
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