How to check if a user has already signed up with

supabase.auth.signUp

?

You can't tell with signUp for security reasons. https://github.com/supabase/supabase/discussions/4105 One approach I've seen is to query your public.users/profiles table. You could also have an rpc call that checks the auth table. I saw discussion somewhere of allowing an option to change the way signUp works, but can't find it and I don't think it is implemented.

okay got it. Thank you. 🙂