React Query Patterns for Data Fetching

React Query (TanStack Query) simplifies server state management. Here's how to use it effectively.

Best Practices#

Structure:
✓ Use query key factories
✓ Colocate queries with features
✓ Abstract fetch functions
✓ Type everything

Performance:
✓ Use staleTime appropriately
✓ Prefetch on hover/focus
✓ Use select for derived data
✓ Avoid over-fetching

Mutations:
✓ Implement optimistic updates
✓ Handle errors gracefully
✓ Invalidate related queries
✓ Show loading states

React Query handles server state elegantly. Use query keys factories for organization, implement optimistic updates for responsiveness, and leverage prefetching for perceived performance. The combination of automatic caching, background updates, and devtools makes data fetching straightforward.

React Query Patterns for Data Fetching

Basic Setup#

Query Hooks#

Mutations#

Infinite Queries#

Prefetching#

Dependent Queries#

Query Filters and Selectors#

Best Practices#

Conclusion#

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