[FIXED] MultiValueDictKeyError in Django REST APIView POST request

Issue

I am trying to write a POST request for a game API and am passing some data from the GET request and some through this POST request. However, I keep getting the following error:

MultiValueDictKeyError 'gameround'

What am I doing wrong here?

    def post(self, request, *args, **kwargs):
        if not isinstance(request.user, CustomUser):
            current_user_id = 1
        else:
            current_user_id = request.user.pk
        gameround = request.GET['gameround']
        random_resource = request.GET['resource']
        created = datetime.now()
        score = 0
        origin = ''
        name = request.POST['name']
        language = request.POST['language']

        user_input_tag = Tag.objects.create(name=name, language=language)
        tag_serializer = TagSerializer(user_input_tag)

        if Tagging.objects.all().filter(tag=user_input_tag).exists():
            # if tagging like this exists, save tagging anyway and leave tag unchanged
            score += 5
            user_input_tagging = Tagging.objects.create(user_id=current_user_id,
                                                        gameround=gameround,
                                                        resource=random_resource,
                                                        tag=user_input_tag,
                                                        created=created,
                                                        score=score,
                                                        origin=origin)

            tagging_serializer = TaggingSerializer(user_input_tagging)

            return Response({'tag and ': tag_serializer.data}, {'tagging': tagging_serializer.data})

        elif not Tagging.objects.all().filter(tag=user_input_tag).exists():
            # save tagging otherwise and del tag?
            user_input_tagging = Tagging.objects.create(user_id=current_user_id,
                                                        gameround=gameround,
                                                        resource=random_resource,
                                                        tag=user_input_tag,
                                                        created=created,
                                                        score=score,
                                                        origin=origin)
            user_input_tagging.save()
            tagging_serializer = TaggingSerializer(user_input_tagging)
            return Response({'tagging only': tagging_serializer.data})

Solution

You don't have key gameround in your GET. You can get gameround data as

gameround = request.GET.get('gameround')

If default value is not given then it defaults to None.

Or you can set default value as

gameround = request.GET.get('gameround', '')

Answered By - user8193706