useMutationState is returning data undefined initially

[Chiratna]

Suppose there are 2 screens in a react-native app ( Screen A, Screen B ) both on the same Stack. I am on Screen A, Screen B still has not been pushed to the stack. I call a mutation say usePostMutation and on success of that mutation I am navigating to Screen B.

In Screen B I am using useMutationState to access the data of usePostMutation. I am able to get the data but initially it is undefined and then I am able to see the actual data.

My question is since I am navigating on to the Screen B onSuccess of the usePostMutation why my data which I am getting using useMuatationState is undefined initially ??

[TkDodo]

shouldn't be; show a reproduction, preferably in codesandbox, because it's likely not react-native specific

[chrism1996]

Getting the same issue. I'm not able to get the data but I can see it in the devtools, it's always as pending and data is undefined. In my case is with sidebars

[chrism1996]

Issue fixed using mutateAsync instead of mutate, should we get an example about this specific section that helped me to fix the issue

[TkDodo]

There shouldn’t be a difference between mutate and mutateAsync as far as useMutationState is concerned. mutate is really just: (vars) => mutateAsync(vars).then(noop).catch(noop)

I’m still waiting for a reproduction to look into it.