useIsFetching

useIsFetching is an optional hook that returns the number of the queries that your application is loading or fetching in the background (useful for app-wide loading indicators).

1import { useIsFetching } from "@tanstack/react-query";2// How many queries are fetching?3const isFetching = useIsFetching();4// How many queries matching the posts prefix are fetching?5const isFetchingPosts = useIsFetching(["posts"]);

Options

• queryKey?: QueryKey: Query Keys
• filters?: QueryFilters: Query Filters
• context?: React.Context<QueryClient | undefined>
  • Use this to use a custom React Query context. Otherwise, defaultContext will be used.

Returns

• isFetching: number
  • Will be the number of the queries that your application is currently loading or fetching in the background.