API Reference

useIsMutating

useIsMutating is an optional hook that returns the number of mutations that your application is fetching (useful for app-wide loading indicators).

import { useIsMutating } from 'react-query'
// How many mutations are fetching?
const isMutating = useIsMutating()
// How many mutations matching the posts prefix are fetching?
const isMutatingPosts = useIsMutating(['posts'])

import { useIsMutating } from 'react-query'
// How many mutations are fetching?
const isMutating = useIsMutating()
// How many mutations matching the posts prefix are fetching?
const isMutatingPosts = useIsMutating(['posts'])

Options

mutationKey?: string | unknown[]
filters?: MutationFilters: Mutation Filters

Returns

isMutating: number
- Will be the number of the mutations that your application is currently fetching.

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