T

TanStack•3mo ago•

1 reply

dead-brown

Different queryFn for same queryKey

Hello, I have some question regarding the queryKeyqueryKey and queryFnqueryFn, the examples and blog posts suggest that the keys should be exposed in some object/factory to be reusable, but I am wondering if there could be potentially a case when you would like to use different fetcher for the same key in different places. Because if not then I assume that the code from the image makes more sense since we are wrapping both in a single object making it easier to use (obviously queryKeyqueryKey could also be exposed higher for better reusability).

Also what would be the valid approach for "querying" the part of the data of the other query ? Is the code in the example a valid approach ? Let's say I have some bigger object which contains various data and I'd like to have some re-usable method to get the parts of this data, is "querying" the parent key and using selectselect with

staleTime

staleTime

a good decision ? I certainly don't think I should split it into multiple keys since that would force multiple calls to the API for the same resource only to get the part of it.

Cheers