Function useMutation

packages/solid-query/src/useMutation.ts:15–79

(
  options: UseMutationOptions<TData, TError, TVariables, TOnMutateResult>,
  queryClient?: Accessor<QueryClient>,
)

// HOOK
export function useMutation<
  TData = unknown,
  TError = DefaultError,
  TVariables = void,
  TOnMutateResult = unknown,
>(
  options: UseMutationOptions<TData, TError, TVariables, TOnMutateResult>,
  queryClient?: Accessor<QueryClient>,
): UseMutationResult<TData, TError, TVariables, TOnMutateResult> {
  const client = createMemo(() => useQueryClient(queryClient?.()))

  const observer = new MutationObserver<
    TData,
    TError,
    TVariables,
    TOnMutateResult
  >(client(), options())

  const mutate: UseMutateFunction<
    TData,
    TError,
    TVariables,
    TOnMutateResult
  > = (variables, mutateOptions) => {
    observer.mutate(variables, mutateOptions).catch(noop)
  }

  const [state, setState] = createStore<
    UseMutationResult<TData, TError, TVariables, TOnMutateResult>
  >({
    ...observer.getCurrentResult(),
    mutate,
    mutateAsync: observer.getCurrentResult().mutate,
  })

  createComputed(() => {
    observer.setOptions(options())
  })

  createComputed(
    on(
      () => state.status,
      () => {
        if (
          state.isError &&
          shouldThrowError(observer.options.throwOnError, [state.error])
        ) {
          throw state.error
        }
      },
    ),
  )

  const unsubscribe = observer.subscribe((result) => {
    setState({
      ...result,
      mutate,
      mutateAsync: result.mutate,