TanStack Query

When to Use

• Fetching, caching, and synchronizing server state in React
• Any data that lives on a server and can become stale
• Scenarios needing background refetch, optimistic updates, or cache invalidation

When NOT to use:

• Client-only state (UI toggles, form drafts, theme) — use React state or Zustand
• One-shot fetches that never need caching (e.g., file download trigger)
• Static data baked into the build — just import it

Our Conventions