Django Rest Framework: Find URL for hyperlinked model

Question

I'm using using Django Rest Framework's HyperlinkedModelSerializer, ModelViewset, and DefaultRouter, and end up with good URLs like this: http://localhost:8000/api/users/1. I would like to, given a user id, find the fully-qualified url for that user without hard-coding anything. Given 53, I want http://localhost:8000/api/users/1, and the host should change when I move to production.

# from urls.py
router = routers.DefaultRouter()
router.register(r'users', shared_views.UserViewSet)


# from models.py
class UserViewSet(viewsets.ModelViewSet):
    '''
    endpoint for viewing/editing users
    '''
    queryset = User.objects.all().order_by('-date_joined')
    serializer_class = UserSerializer


# from serializers.py

class UserSerializer(serializers.HyperlinkedModelSerializer):
    class Meta:
        model = User
        fields = ('url', 'username', 'email', 'groups')

How can I do this? I tried: reverse(UserViewSet.as_view({'get': 'retrieve'}), args=[request.user.id]) but got this error:

Reverse for 'shared.views.UserViewSet' with arguments '(1,)' and keyword arguments '{}' not found. 0 pattern(s) tried: []

you don't need to create the url . The HyperlinkedModelSerializer by default will create the url for you. check the api response json you should see a url for each user. — Anush Devendra
– Anush Devendra, Commented Nov 26, 2015 at 7:02

Max Heiber · Accepted Answer · 2015-12-05 03:57:25Z

1

As @Anush said, I can use the serializer to get the URL. The request needs to be passed in a particular way as a keyword argument (see below):

class OwnedViewSet(viewsets.ModelViewSet):
    ''' ModelViewSets that use hyperlinked model serializers
        can inherit this to automatically
        set `owner` = current user. 
    '''
    def create(self, request, *args, **kwargs):
        serialized_owner = UserSerializer(request.user, context={'request': request})
        request.data['owner'] = serialized_owner.data['url']
        return super(OwnedViewSet, self).create(request, *args, **kwargs)

answered Dec 5, 2015 at 3:57

Max Heiber

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Max Heiber Over a year ago

Looking back on this, I am even more struck by how Django Rest Framework does the best it can with bad abstractions.

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