Firebase admin how to create user with passwordless signin?

Question

I am looking at the following docs to create a user using the Node.js Firebase admin SDK: https://firebase.google.com/docs/auth/admin/manage-users#create_a_user

However, I want to create a user with passwordless (email link) sign-in, not with a password. Is this possible?

What happens if I don't specify a password for the user?

My web-app currently uses passwordless signin, so it works normally.

Answer 1

I just tested and figured it out. If you don't set a password for the user, the user will not have any sign in methods set for them (asside from creating a custom token from the admin SDK and signing in with that).

However if you then send an email sign-in link for the user, and they sign in through the link, it will add the passwordless method to their account.