class RegisterTokenFirebase(generics.GenericAPIView):

    serializer_class = FirebaseTokenSerializer

    def post(self, request):
        serializer = FirebaseTokenSerializer(data=request.data)
        session = request.db_session


        if serializer.is_valid():
            firebase_token = serializer.data['firebase_token']
        else:
            print("Not valid serializer")

        user = session.query(Customer).filter(Customer.email == request.user.username).one()
        user.firebase_token = firebase_token
        session.commit()


        return Response("Confirmed ", status.HTTP_200_OK)