Cache Lifetimes

Control how long RTK Query keeps data in cache with garbage collection strategies.

20 min

2 sections

cache

garbage-collection

performance

01. Cache Duration

Section 1 of 2

RTK Query removes unused cache entries after a timeout. Configure keepUnusedDataFor to control this.

typescript

export const api = createApi({
  keepUnusedDataFor: 30, // Keep for 30 seconds (default)
  endpoints: (builder) => ({
    getTodos: builder.query({
      query: () => '/todos',
    }),
    // Specific endpoint override
    getUser: builder.query({
      query: (id) => `/users/${id}`,
      keepUnusedDataFor: 300, // 5 minutes
    }),
  }),
});

Optimistic Updates

Advanced Patterns

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