API.py

from rest_framework.views import APIView
from rest_framework.response import Response
from rest_framework import status
from rest_framework.permissions import IsAuthenticated

def notexist():
    return {"error": "Los datos no fueron encontrados"}

class SuperAPIView(APIView):
    model = None
    serializer = None

    # def get_permissions(self):
    #     if self.request.method in ['POST', 'PUT', 'PATCH', 'DELETE']:
    #         return [IsAuthenticated()]
    #     return []
    
    def get(self, request, pk=None):
        if pk:
            try:
                obj = self.model.objects.get(pk=pk)
                serializer = self.serializer(obj)
                return Response(serializer.data, status=status.HTTP_200_OK)
            except self.model.DoesNotExist:
                return Response(notexist(), status=status.HTTP_404_NOT_FOUND)
        else:
            obj = self.model.objects.all()
            serializer = self.serializer(obj, many=True)
            return Response(serializer.data, status=status.HTTP_200_OK)
    
    def post(self, request):
        serializer = self.serializer(data=request.data)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data, status=status.HTTP_201_CREATED)
        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

    def put(self, request, pk):
        try:
            obj = self.model.objects.get(pk=pk)
        except self.model.DoesNotExist:
            return Response(notexist(), status=status.HTTP_404_NOT_FOUND)
        
        serializer = self.serializer(obj, data=request.data)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data)
        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

    def patch(self, request, pk):
        try:
            obj = self.model.objects.get(pk=pk)
        except self.model.DoesNotExist:
            return Response(status=status.HTTP_404_NOT_FOUND)

        serializer = self.serializer(obj, data=request.data, partial=True)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data)
        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

    def delete(self, request, pk):
        try:
            obj = self.model.objects.get(pk=pk)
        except self.model.DoesNotExist:
            return Response(notexist(), status=status.HTTP_404_NOT_FOUND)
        
        obj.delete()
        return Response(status=status.HTTP_204_NO_CONTENT)