Firebase Docs Reference firebase. auth. AuthProvider Interface that represents an auth provider. Implemented by EmailAuthProvider FacebookAuthProvider GithubAuthProvider GoogleAuthProvider OAuthProvider PhoneAuthProvider SAMLAuthProvider TwitterAuthProvider Index Properties providerId Properties providerId providerId: string Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 3.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates. Cập nhật lần cuối Tháng 3 22, 2019.