Is there a way to cancel an optimistic mutation response ?

[strblr]

Hello !

I have a case in a project where graphcache might or might not have enough information to create an optimistic response for a mutation. But in case it does, it should put out an optimistic response. But the optimistic callbacks don't seem to be cancellable once called, they have to return a response.

Wouldn't it be a good idea to be able to return undefined to signal a last-minute cancellation and to treat the mutation as if there was no optimistic response ?

Best regards.

[kitten]

@ostrebler You can totally return undefined from an optimistic updater, so that shouldn't cause any issues. You'll have to make sure though that your updater bails when it does encounter these null results on their fields.

[strblr]

So returning undefined doesn't actually cancel the optimistic behavior, but rather sets null as the optimistic result of the mutation, right ?