Function useMutationState

packages/svelte-query/src/useMutationState.ts:24–49

(
  options: MutationStateOptions<TResult> = {},
  queryClient?: QueryClient,
)

}

export function useMutationState<TResult = MutationState>(
  options: MutationStateOptions<TResult> = {},
  queryClient?: QueryClient,
): Readable<Array<TResult>> {
  const client = useQueryClient(queryClient)
  const mutationCache = client.getMutationCache()

  let result = getResult(mutationCache, options)

  const { subscribe } = readable(result, (set) => {
    return mutationCache.subscribe(
      notifyManager.batchCalls(() => {
        const nextResult = replaceEqualDeep(
          result,
          getResult(mutationCache, options),
        )
        if (result !== nextResult) {
          result = nextResult
          set(result)
        }
      }),
    )
  })

  return { subscribe }
}