overleaf/services/web/frontend/stories/hooks/use-fetch-mock.tsx

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import { useLayoutEffect } from 'react'
import fetchMock from 'fetch-mock'
fetchMock.config.fallbackToNetwork = true
/**
* Run callback to mock fetch routes, call restore() when unmounted
*/
export default function useFetchMock(callback) {
useLayoutEffect(() => {
callback(fetchMock)
return () => {
fetchMock.restore()
}
}, [callback])
}