How can i access QueryString values in Serializer Django Rest Framework

Question

I am trying to access querystring values in serializer class.

class OneZeroSerializer(rest_serializer.ModelSerializer):

    location = rest_serializer.SerializerMethodField('get_alternate_name')

    def get_alternate_name(self, obj):
        view = self.context['view']
        print view.kwargs['q']  #output is {}
        return 'foo'


    class Meta:
        model = OneZero

        fields = ('id', 'location')

Views

class OneZeroViewSet(viewsets.ModelViewSet):

   serializer_class = OneZeroSerializer

   queryset = OneZero.objects.all()

Is this right way to access querystring?

Answer 1

When using ViewSets, you can access the request in the serializer context (like you access the view). You can access the query params from this

def get_alternate_name(self, obj):
    request = self.context['request']
    print request.QUERY_PARAMS['q']
    return 'foo'

The attribute view.kwargs contains the named arguments parsed from your url-config, so from the path-part.

Answer 2

According to the docs you want to use self.request.QUERY_PARAMS

You can see it being used here

UPDATE:

As of DRF 3.0:

The usage of request.QUERY_PARAMS is now pending deprecation in favor of the lowercased request.query_params

Answer 3

self.context['request'].query_params