具有多个提供商的 Firebase 身份验证

Question

Is it possible to link the email/password, google and Facebook sign in?

I have successfully linked Google and Facebook sign in without any issue, however whenever I try to link Facebook with email/password & Google, I do get an error which is

account-exists-with-different-credential

OR

can I just prevent using the same email(gmail.com) when using Google Sign in when the user already registered using email and password method.

Note: I am using the same email for the three providers..

There are no codes currently, since I do wanna ask first if this is the intended function of it.

I already tried using try catch for Google Sign in whenever the user signs in with a registered email via email and password, however it does not catch using FirebaseAuthException .

Answer 1

You can find the answer in the official documentation, following the link https://firebase.google.com/docs/auth/flutter/errors#handling_account-exists-with-different-credential_errors