Firebase passwordless authentication by modifying the emailVerified property?

Question

I am using Firebase's email + password Auth system.

I have a use case(passwordless auth) where I'd like to verify the user's email a second time.
So assuming they already had their email verified once, I'd like to:

• Send them another "verify your email" Email, i think this would work by simply calling sendEmailVerificationWithCompletion(..)

• After they verify their email a second time, Determine that they did. The first time I can check the emailVerified Boolean, but is there a way to reset this emailVerified Boolean to False and check it a second time?

How can I achieve this?

[Edited]

More description if it helps:

Im trying to do Passwordless Authentication. Maybe this is not possible on Firebase and I'd have to use something like auth0

I have only 2 flows.

Flow 1: Sign Up

• Input an email and username (Display name in firebase).

• Verify your email.

• Now you stay signed in until the app is deleted from the phone ( a default password is used to sign you in and sign you out on app open and app exit respectively)

Flow 2: Login

• This flow becomes relevant if you have an account with the App, but you deleted it in the past and reinstalled again

• Input your email/username

• if you have an account, you'll get an email to "verify that it is you again"

• Verified? Now you stay signed in until the app is deleted from the phone ( a default password is used to sign you in and sign you out on app open and app exit respectively)

Answer 1

I dont think a true passwordless email-auth system is possible in Firebase. Im going to instead do this with Auth0