def post(self): request_data = request.get_json() username = request_data["username"] password = request_data["password"] new_user = UserModel(username=username,password=password) address1 = AddressModel(county="Cornwall",user_id=None) address2 = AddressModel(county="Hampshire",user_id=None) new_user.add_address(address1) new_user.add_address(address2) return {"user_id": new_user.save_to_db()}