firebase: Delete a provider using admin sdk

Question

Using Admin-sdk, Is there a way to delete a particular provider from a user record in firebase?

For eg: Assume a given user has the following providers linked to his account

1. password
2. google.com
3. facebook.com

Say, I would like to revoke the user's ability to login via facebook to his account. Can this be done using admin sdk.

I could only find an api to unlink a provider (which is client side api. This will require the firebase-issued-idToken of the user).

Answer 1

Not sure when this ability was added in admin sdk, but it seems in version 8.1.0 you can achieve this using the following:

UserRecord.UpdateRequest updateRequest = new UserRecord.UpdateRequest(ssoId);
// remove/unlink social login providers
updateRequest.setProvidersToUnlink(Arrays.asList("google.com", "facebook.com", "apple.com"));            

FirebaseAuth.getInstance().updateUser(updateRequest);