typescript error querykey is missing

[psm-solution-group]

Describe the bug

Hello,

I use Optismistic Update and I return prevData and newData on the onMutate function.

I get this type error on prevData

Type '[QueryKey, IDashboardData | undefined][]' is missing the following properties from type 'IDashboardData': ill, cancellations, holidays, meetings, and 4 more.ts(2740)

And this type error on newData

Type '(TTaggedQueryKey extends { [dataTagSymbol]: infer TaggedValue; } ? TaggedValue : TQueryFnData) | undefined' is not assignable to type 'IDashboardData'.
  Type 'undefined' is not assignable to type 'IDashboardData'.ts(2322)

here are my interface/types

export interface IDashboardData {
  ill: DashboardStatisticPercentage;
  cancellations: DashboardStatisticPercentage;
  holidays: DashboardStatisticPercentage;
  meetings: DashboardMeetingsTable[];
  userRequests: DashboardUserRequest[];
  events: DashboardCurrentEvents[];
  workerTimes: DashboardLastWorkerTimes[];
  availableCars: DashboardAvailableCars[];
}

Your minimal, reproducible example

/

Steps to reproduce

here is my code:

  const { mutateAsync } = useMutation({
    mutationFn: async (params: IConfirmAccountMutation) => {
      const res = await axiosPrivate.post(`${URL}/auth/confirmAccount`, params, {
        headers: headersJSON,
        withCredentials: true
      });
    
      const data: IReturnApi<null> = await res.data;
      return data;
    },
    onMutate: async (params) => {
      console.log(params);
      await queryClient.cancelQueries({queryKey: ["dashboard"]});

      const prevData: IDashboardData = queryClient.getQueriesData<IDashboardData>({queryKey: ["dashboard"]});

      const newData: IDashboardData = queryClient.setQueryData<IDashboardData | undefined>(["dashboard"], (old: IDashboardData) => {
        return {
          ...old,
          userRequests: old.userRequests.filter((e => e.id !== params.id))
        }
      });

      return {
        prevData,
        newData
      };
    },
    onSuccess: (data) => {
      toast.success(data.message);
    },
    onError: (err: AxiosError<IReturnApi<IValidationError[]>>, variables: any, context: IContextQuery | undefined) => {
      console.log(context);
      console.log(context);
      if(err.response) {
        toast.error(err.response.data.message);
      } else {
        toast.error("Es ist ein Fehler aufgetreten. Code: #1_USER_REQUEST_CONFIRM");
      }
    }
  })

Expected behavior

/

How often does this bug happen?

Every time

Screenshots or Videos

No response

Platform

windows 10
vscode

Tanstack Query adapter

react-query

TanStack Query version

latest

TypeScript version

latest

Additional context

No response

[TkDodo]

In this situation:

      const newData: IDashboardData = queryClient.setQueryData<IDashboardData | undefined>(["dashboard"], (old: IDashboardData) => {
        return {
          ...old,
          userRequests: old.userRequests.filter((e => e.id !== params.id))
        }
      });

old is not of type IDashboardData but IDashboardData | undefined because there's no guarantee that data is in the cache when you try to read from it. The functional updater has to return an IDashboardData, but you are not creating one because if old is undefined, you basically create an object with just the userRequests key (and everything else is missing - which is what TS is telling you).