I'm not sure whether Candid (as the API for talking about external users) allows a way to probe for the existing of a user, or whether that was explicitly hidden (so that arbitrary users can't see if other arbitrary users exist).
It certainly is nicer UX to be told your grant won't succeed because that user doesn't exist.
I'm not sure whether Candid (as the API for talking about external users) allows a way to probe for the existing of a user, or whether that was explicitly hidden (so that arbitrary users can't see if other arbitrary users exist).
It certainly is nicer UX to be told your grant won't succeed because that user doesn't exist.