How to determine if the user signed in to Firebase with email and password or with google sign in?

Question

I am working on a log in for a web application, and I have made it so the user can sign in manually with their email and password or by using a google sign in. Is there a way to

Answer 1

@mjrdnk's answer is correct, but there are cases that are not covered by the answer so I find that this solution works best in all cases (that I have tested).

val user = firebaseAuth.currentUser

        user?.let {

        authProvider = when (it.providerData[it.providerData.size-1].providerId) {
            "phone" -> {
                ConnectedUser.LOGIN_PROVIDERS.PHONE
            }
            "password" -> {
                // Email and password
                ConnectedUser.LOGIN_PROVIDERS.EMAIL
            }
            else -> {
                ConnectedUser.LOGIN_PROVIDERS.UNKNOWN
            }
        }
.
.
.

Wonderful source of information: FirebaseUI for Auth

Some provider names follow (see above source code for more):

ANONYMOUS_PROVIDER = "anonymous"
EMAIL_LINK_SIGN_IN_METHOD = "emailLink"
EMAIL_PASSWORD_SIGN_IN_METHOD = "password"
MICROSOFT_PROVIDER = "microsoft.com"
YAHOO_PROVIDER = "yahoo.com"
APPLE_PROVIDER = "apple.com"
PHONE = "phone"