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useIsFetching.md

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id useIsFetching
title 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).

import { useIsFetching } from '@tanstack/react-query'
// How many queries are fetching?
const isFetching = useIsFetching()
// How many queries matching the posts prefix are fetching?
const isFetchingPosts = useIsFetching({ queryKey: ['posts'] })

Options

  • filters?: QueryFilters: Query Filters
  • queryClient?: QueryClient
    • Use this to use a custom QueryClient. Otherwise, the one from the nearest context will be used.

Returns

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