fromdjango.dbimportmodels# Create your models here.classKnight(models.Model):name=models.CharField(max_length=50)nickname=models.CharField(max_length=50)classStory(models.Model):name=models.CharField(max_length=50)classQuest(models.Model):name=models.CharField(max_length=50)knights=models.ManyToManyField(Knight,related_name='quests')story=models.ForeignKey(Story,on_delete=models.CASCADE,related_name='quest')

fromdjango.urlsimportpath,includefromrest_frameworkimportroutersfromrest_framework_json_apiimportserializersfromrest_framework_json_api.viewsimportModelViewSetfromrest_framework_json_api.relationsimportResourceRelatedFieldfrom .modelsimportKnight,Story,Questfrom .importviewsclassStorySerializer(serializers.ModelSerializer):quest=ResourceRelatedField(queryset=Quest.objects,many=True)included_serializers= {'quest':'knight.urls.QuestSerializer',    }classMeta:model=Storyfields= ('id','name','quest')classJSONAPIMeta:included_resources= ['quest']classQuestSerializer(serializers.ModelSerializer):story=ResourceRelatedField(queryset=Story.objects)included_serializers= {'story':'knight.urls.StorySerializer',    }classMeta:model=Questfields= ('id','name','story',)classJSONAPIMeta:included_resources= ['story']classKnightSerializer(serializers.ModelSerializer):quests=ResourceRelatedField(queryset=Quest.objects,many=True,    )included_serializers= {'quests':'knight.urls.QuestSerializer',    }classMeta:model=Knightfields= ('id','name','nickname','quests',)classJSONAPIMeta:included_resources= ['quests']classKnightViewSet(ModelViewSet):queryset=Knight.objects.all()serializer_class=KnightSerializerclassQuestViewSet(ModelViewSet):queryset=Quest.objects.all()serializer_class=QuestSerializerclassStoryViewSet(ModelViewSet):queryset=Story.objects.all()serializer_class=StorySerializerrouter=routers.DefaultRouter()router.register(r'/knights',KnightViewSet)router.register(r'/quests',QuestViewSet)router.register(r'/stories',StoryViewSet)urlpatterns= [path('',include(router.urls)),]