permission() for permission in self.permission_classes -> TypeError: 'str' object is no-CodePudding

does anybody know why do I get this error? I set default permission to IsAuthenticated. Only register has AllowAny, to allow users to register.

Not Found: /
[21/Feb/2022 21:43:06] "GET / HTTP/1.1" 404 2278
Not Found: /account
[21/Feb/2022 21:43:11] "GET /account HTTP/1.1" 404 2317
Internal Server Error: /account/register
Traceback (most recent call last):
\venv\lib\site-packages\rest_framework\views.py", line 278, in <listcomp>
    return [permission() for permission in self.permission_classes]
TypeError: 'str' object is not callable
[21/Feb/2022 21:43:14] "GET /account/register HTTP/1.1" 500 106055

My views.py class:

@api_view(['POST'])
@permission_classes(['AllowAny'])
def registration_view(request):
    serializer = RegistrationSerializer(data=request.data)
    data = {}
    if serializer.is_valid():
        account = serializer.save()
        data['response'] = "successfully registered a new user."
        data['email'] = account.email
        data['username'] = account.username
    else:
        data = serializer.errors
    return Response(data)

I am using SessionAuthentication and IsAuthenticated as default authentication and permission in my settings.py file.

CustomUser model just inherits from AbstractUser. No addition.

CodePudding user response：

You can not pass the permission classes as strings, but as references to classes, so:

from rest_framework.permissions import AllowAny

@api_view(['POST'])
@permission_classes([AllowAny])
def registration_view(request):
    # …

but you do not need to specify AllowAny since, well, it allows any request. You can implement the view with:

@api_view(['POST'])
def registration_view(request):
    # …