create method is raising key error in serializer - django

Question

I am creating an API for signup.
Serializers.py
class UserSignupSerializer(serializers.Serializer):
class Meta:
model = User
fields = ['username', 'first_name', 'last_name', 'email', 'role']
extra_kwargs = {'password': {'write_only': True}}
def create(self, validate_data):
user = User.objects.create(email=validate_data['email'], first_name=validate_data['first_name'],last_name=validate_data['last_name'], role='user', username=validate_data['username'])
user.set_password(validate_data['password'])
user.save()
return user
Views.py
class UserSignupView(APIView):
def post(self, request):
serializer = UserSignupSerializer(data=request.data)
if serializer.is_valid():
serializer.save()
return Response(serializer.data, status=status.HTTP_201_CREATED)
else:
return Response(status=status.HTTP_204_NO_CONTENT)
But this is giving key error 'email' or anything I put first in this line:
user = User.objects.create(email=validate_data['email'], first_name=validate_data['first_name'],last_name=validate_data['last_name'], role='user', username=validate_data['username'])
Edit
Error
Internal Server Error: /api/user_signup/
Traceback (most recent call last):
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
response = get_response(request)
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\django\core\handlers\base.py", line 115, in _get_response
response = self.process_exception_by_middleware(e, request)
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\django\core\handlers\base.py", line 113, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\django\views\decorators\csrf.py", line 54, in wrapped_view
return view_func(*args, **kwargs)
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\django\views\generic\base.py", line 71, in view
return self.dispatch(request, *args, **kwargs)
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\rest_framework\views.py", line 497, in dispatch
response = self.handle_exception(exc)
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\rest_framework\views.py", line 457, in handle_exception
self.raise_uncaught_exception(exc)
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\rest_framework\views.py", line 468, in raise_uncaught_exception
raise exc
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\rest_framework\views.py", line 494, in dispatch
response = handler(request, *args, **kwargs)
File "D:\Django\FitnessProject\FitnessApp\fitness_api\views.py", line 187, in post
serializer.save()
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\rest_framework\serializers.py", line 213, in save
self.instance = self.create(validated_data)
File "D:\Django\FitnessProject\FitnessApp\fitness_api\serializers.py", line 85, in create
user = User.objects.create(email=validate_data['email'], first_name=validate_data['first_name'],last_name=validate_data['last_name'], role='user', username=validate_data['username'])
KeyError: 'email'
[2019-09-03 11:49:43,186] log: ERROR - Internal Server Error: /api/user_signup/
Traceback (most recent call last):
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
response = get_response(request)
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\django\core\handlers\base.py", line 115, in _get_response
response = self.process_exception_by_middleware(e, request)
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\django\core\handlers\base.py", line 113, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\django\views\decorators\csrf.py", line 54, in wrapped_view
return view_func(*args, **kwargs)
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\django\views\generic\base.py", line 71, in view
return self.dispatch(request, *args, **kwargs)
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\rest_framework\views.py", line 497, in dispatch
response = self.handle_exception(exc)
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\rest_framework\views.py", line 457, in handle_exception
self.raise_uncaught_exception(exc)
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\rest_framework\views.py", line 468, in raise_uncaught_exception
raise exc
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\rest_framework\views.py", line 494, in dispatch
response = handler(request, *args, **kwargs)
File "D:\Django\FitnessProject\FitnessApp\fitness_api\views.py", line 187, in post
serializer.save()
File "D:\django\FitnessProject\fitness_venv\lib\site-packages\rest_framework\serializers.py", line 213, in save
self.instance = self.create(validated_data)
File "D:\Django\FitnessProject\FitnessApp\fitness_api\serializers.py", line 85, in create
user = User.objects.create(email=validate_data['email'], first_name=validate_data['first_name'],last_name=validate_data['last_name'], role='user', username=validate_data['username'])
KeyError: 'email'
[03/Sep/2019 11:49:43] "POST /api/user_signup/?username=user_4&last_name=user&first_name=user&email=u#gmail.com&password=user&role=user HTTP/1.1" 500 18553

Answer 1

I think you should use serializers.Modelserializer instead of serializers.Serializer.