User Authentication - backend Endpoints login - http://127.0.0.1:8000/api/v1/rest-auth/login/ all users - http://127.0.0.1:8000/api/v1/users logout - http://127.0.0.1:8000/api/v1/rest-auth/logout/ signup - http://127.0.0.1:8000/api/v1/rest-auth/registration/