queryFn, call different endpoint every Nth repetition

[czescwojtek]

Is it possible to use useQuery hook with refetchInterval option set to run different queryFn every nth, let's say 10th, repetition like so:

1. calls /false endpoint, 2. ... 9. calls /false endpoint, 10. calls /true endpoint, 11. calls /false endpoint
   ... and so on

[TkDodo]

You would need to do that in userland - keeping track of the amount of fetches in local state, then changing the url your queryFn goes to depending on that.

[czescwojtek]

What if the hook is being used several times across whole app? I've followed your suggestion and introduced a 'recoil' atom which keeps the track of the amount of fetches (updated by useQuery 'onSettled') but due to the fact the hook is being used multiple times the 'onSettled' fires X times.

[TkDodo]

I guess you can use the onSuccess and onError callbacks on the queryCache, which will only be invoked once.