Unable to pass shouldCreateUser: false when using generateLink

[chrisb2244]

Feature request

Is your feature request related to a problem? Please describe.

If I use the auth.signIn(...) function, I can prevent the creation of new users by passing shouldCreateUser: false. It doesn't appear to be possible to do the same if instead I want to use auth.api.generateLink('magiclink', email, redirectTo).

Describe the solution you'd like

Addition of a parameter (probably in the options) for generateLink to allow the prevention of new user creation.

Describe alternatives you've considered

I can use the auth.signIn({email}, { shouldCreateUser: false, redirectTo, ...options }) function, but then I can't generate the email formatting as I might prefer. Perhaps it's possible to workaround by first checking the existence of a user, and then rejecting before calling generateLink, but it would be nice to have the magiclink able to receive the same options as the signIn function.

[monicakh]

@supabase/auth-team Assigning this to the PIC of the Auth team to take care of this.

[activenode]

I'm confused that the related PR was closed. I'll take it up I guess.

[activenode]

FYI for those who need a workaround:

1. The easiest option without having to create an RPC is to delete the user after creation immediately.
2. OR create an RPC like here https://github.com/orgs/supabase/discussions/1282#discussioncomment-1674133

const { data } =  supabase.auth.admin.generateLink(...);

if (data.properties) {
  const user = data.user;
  const { hashed_token, verification_type } = data.properties;

  if (verification_type === 'signup') {
   await supabase.auth.admin.deleteUser(user.id);
   return; // dont do anything else
  }
}