useErrors

[TkDodo]

What would we think about a dedicated useErrors hook to be able to display errors globally, similar to useIsFetching?
instead of the number of fetching queries, we could return a map of queryKey -> error for all queries that are in error state (+ the usual filter options).

we’ve had this use case, and creating subscriptions with useQuery just to display errors was cumbersome because building the keys involved subscribing to redux (where part of the queryKey lives). A global hook would solve this nicely - useErrorBoundary would be the other alternative, so we have options if this idea is not gonna make it :)

[waptik]

Sounds like a great idea. It'll be great having especially in cases where you want to display an error message or do something else in components that depends on a particular query state.
It'll also help in avoiding passing error and isError to lower level components which can be tedious.

I don't know if anyone gets my point here!