tanstack-query-best-practices

Proper TanStack Query keys use hierarchical arrays to scope cache invalidation accurately. This structure enables precise server state synchronization across components during data mutations.

TanStack Query mutations handle optimistic updates by applying temporary cache changes before server confirmation. This pattern requires robust error handling to roll back the server state if the request fails.

TanStack Query integrates with SSR and SSG through specific hydration patterns. Applying these server-side rendering patterns ensures proper server state synchronization when hydrating data-driven React components on the client.

You need TanStack Query when managing complex server state in data-driven React applications. It standardizes data fetching, caching, and mutation flows, replacing manual state synchronization across client routes.

Cache invalidation failures often stem from improper query key structures or missing invalidation strategies. Enforcing hierarchical query key organization ensures mutation invalidation accurately targets the affected server state caches.