Redux
Intermediate
Caching & Invalidation
Understand RTK Query's automatic caching and learn to control cache invalidation with tags.
25 min
3 sections
caching
invalidation
tags
1
2
3
01. Automatic Caching
Section 1 of 3
RTK Query caches query results automatically. Subsequent hook calls with the same arguments return cached data immediately.
typescript
// Component 1
const result1 = useGetTodosQuery(); // Fetches from server
// Component 2 (same data!)
const result2 = useGetTodosQuery(); // Uses cached data
// Both components share the same data in cacheBack to Course