def post(self): """ Creates a user """ data = request.json username = data['username'] password = data['password'] s = session() _user = s.query(UserModel).filter(UserModel.username == username).all() if not _user: user = UserModel(username=username, password=password) s.add(user) s.commit() return user.as_dict(), 201 return error_response(message='User already exists', code=400)