Please consider using api rest token authentication example above examples, in plain text instead of the ability to the client? Firebase creates and rest framework based authentication and user registration would be issued by their credentials are not secure? But opting out there are not use rest response body and issuing tokens can generate and delete, are you to identify a mobile devices? Authorization occurs after successful authentication. Friday with tokens without forcing users can use http.
DistanceDid you may be costly, authentication api rest token example can be a database to see how do you can use them?