How to get GeoJSON response in Django REST framework gis

Question

I am trying to get GeoJSON response using django rest framework but facing issue

argument of type 'NoneType' is not iterable

This is my code

class NewPark(models.Model):
    name = models.CharField(max_length=256)
    geometry = models.GeometryField(srid=3857, null=True, blank=True)
    objects = models.GeoManager()

    class Meta:
        db_table = u'new_park'

    def __unicode__(self):
        return '%s' % self.name


class NewParkSerializer(GeoFeatureModelSerializer):
    class Meta:
        model = NewPark
        geo_field = "geometry"
        fields = ('id', 'name', 'geometry')

class NewParkViewSet(viewsets.ModelViewSet):

    def get_queryset(self):

        queryset = NewPark.objects.all()
        return queryset

When i change serialize type to 'erializers.GeoModelSerializer' then it is working, but i want GEOJSON response

I have searched about GeoFeatureModelSerializer but cannot find any example geo_field = "geometry". All example are about geo_field = "point"

Please help me to figure out this issue?

score 3 · Accepted Answer · answered Mar 21 '14 at 18:04

You might only have the above error in the browsable API, because the default djanog-rest-framework html template renderer does not work with the GeoJson format.

To test if that is the case, try to call your api endpoint requesting it in json format, i.e. /api/newpark.json or equivalently /api/newpark?format=json. This should show you geojson data, if it does your backend API is fine, and the problem is the browsable html form.

If you want a browsable API for your GeoJson endpoint, then you might need to change the html template used to render your API end point.

How to get GeoJSON response in Django REST framework gis

1 Answers1