How to catch a Firebase Auth specific exceptions

Question

Using Firebase, how do I catch a specific exception and tell the user gracefully about it? E.g :

FirebaseAuthInvalidCredentialsException: The email ad

Answer 1

If you are sending upstream messages from user to cloud, implement firebase callback functions onMessageSent and onSendError to check the status of upstream messages. In error cases, onSendError returns a SendException with an error code.

For example, if the client attempts to send more messages after the 20-message limit is reached, it returns SendException#ERROR_TOO_MANY_MESSAGES.