参考URL

https://homata.gitbook.io/geodjango/geodjango/tutorial#geojson-serializer

ビューを登録する

(アプリ名)/urls.py

urlpatterns = [  
    ....  
    path('geojson/', GeojsonAPIView.as_view(), name='geojson_view'),  
    ....  
]  

(アプリ名)/views.py

from rest_framework.views import APIView  
from rest_framework.response import Response  
from rest_framework import status  
import traceback  
import json  
from django.core.serializers import serialize  

class GeojsonAPIView(APIView):  
    def get(self, request, *args, **keywords):  
        try:  
            encjson  = serialize(  
                'geojson',  
                FieldPolygon.objects.all(),  
                srid=4326,  
                geometry_field='geom',  
                fields=('gid', 'name')    
            )  
            result   = json.loads(encjson)  
            response = Response(result, status=status.HTTP_200_OK)  
        except Exception as e:  
            traceback.print_exc()  
            response = Response({}, status=status.HTTP_404_NOT_FOUND)  
        except:  
            response = Response({}, status=status.HTTP_404_NOT_FOUND)  
        return response  
  • fieldsに指定したカラムがプロパティになります。
  • FieldPolygon.object.all()FieldPolygon.object.filter()等をかけられるようです。