firebase web，将手机验证到现有帐户 email

Question

firebase web and javascript, i have an account with email and password, now I need to authenticate with the phone but to update to the previous account created with email and password, I only find that a new one is created with the phone but not to update the old one, help

Answer 1

In Firebase Authentication you can't just add additional info to an existing profile. But what you can do is create a profile for the user with multiple providers, and then link those providers. So in your case, you'd create an additional profile with the phone number provider, and then link that to the existing email+password account.

The steps (as outlined in the documentation on ):

1. Follow the flow for sending a verification code to the user's phone number

2. Get the AuthCredential for the user's phone auth

3. Now link the auth providers to create a combined account.