I am new to Django rest framework. I have a model and serializer. Trying to retrieve data using RetrieveAPIView using a lookup_field.
I want to return custom response when lookup_filed data does not exits in database.
Below is my view
class GetData(RetrieveAPIView):
serializer_class = DataSerializer
lookup_field='id'
action = "retrieve"
def get_queryset(self):
Data.objects.all()
This is my response: { "detail": "Not found." }
As long as the object exists in the database, with the id you are querying on you should be able to retrieve the object using RetrieveAPIView as such:
in your views.py file:
class GetData(RetrieveAPIView):
queryset = Data.objects.all()
serializer_class = DataSerializer
in your urls.py file:
urlpatterns = [
path('your_custom_path/<pk>', GetData.as_view())
]
This will return the object with the specified primary key (id) as defined in the path you run the request against.
GET /your_custom_path/2 will return the Data object with an id of 2. This super simple code is the benefit of using the RetrieveAPIView if you want to add more customizable filtering I would request looking into APIView on the official django rest framework docs
def get_queryset(), pleasereturnthe queryset, your code above does not return queryset, but returnNone.