DRF getstream empty notifications - django-rest-framework

Question

I'm trying to get a proof of concept of Django Rest Framework on getstream working to power inapp notifications.
My code https://github.com/morenoh149/django-rest-framework-getstream
models.py
class Snippet(models.Model, Activity):
created_at = models.DateTimeField(auto_now_add=True)
title = models.CharField(max_length=100, blank=True, default='')
code = models.TextField()
linenos = models.BooleanField(default=False)
language = models.CharField(
choices=LANGUAGE_CHOICES, default='python', max_length=100)
style = models.CharField(
choices=STYLE_CHOICES, default='friendly', max_length=100)
owner = models.ForeignKey(
'auth.User', related_name='snippets', on_delete=models.CASCADE)
highlighted = models.TextField()
#property
def activity_actor_attr(self):
return self.owner
#property
def activity_notify(self):
return [feed_manager.get_notification_feed(self.owner_id)]
class Meta:
ordering = ('created_at', )
def save(self, *args, **kwargs):
"""
Use the `pygments` library to create a highlighted HTML
representation of the code snippet.
"""
lexer = get_lexer_by_name(self.language)
linenos = self.linenos and 'table' or False
options = self.title and {'title': self.title} or {}
formatter = HtmlFormatter(
style=self.style, linenos=linenos, full=True, **options)
self.highlighted = highlight(self.code, lexer, formatter)
super(Snippet, self).save(*args, **kwargs)
serializers.py
from django.contrib.auth.models import User from rest_framework import serializers
from snippets.models import Snippet
class SnippetSerializer(serializers.HyperlinkedModelSerializer):
owner = serializers.ReadOnlyField(source='owner.username')
highlight = serializers.HyperlinkedIdentityField(
view_name='snippet-highlight', format='html')
class Meta:
model = Snippet
fields = ('url', 'id', 'highlight', 'owner', 'title', 'code',
'linenos', 'language', 'style')
class ActivitySerializer(serializers.Serializer):
id = serializers.UUIDField()
foreign_id = serializers.CharField()
verb = serializers.CharField()
time = serializers.DateTimeField()
def __init__(self, *args, **kwargs):
object_serializer = kwargs.pop("object_serializer", None)
actor_serializer = kwargs.pop("actor_serializer", None)
super().__init__(self, *args, **kwargs)
if object_serializer:
self.fields["object"] = object_serializer()
else:
self.fields["object"] = serializers.CharField()
if actor_serializer:
self.fields["actor"] = actor_serializer()
else:
self.fields["actor"] = serializers.CharField()
class AggregatedSerializer(ActivitySerializer):
group = serializers.CharField()
activities = ActivitySerializer(many=True)
class NotificationSerializer(AggregatedSerializer):
is_seen = serializers.BooleanField()
is_read = serializers.BooleanField()
def get_activity_serializer(data, object_serializer=None, actor_serializer=None, **kwargs):
kwargs["object_serializer"] = object_serializer
kwargs["actor_serializer"] = actor_serializer
serializer = ActivitySerializer
if "is_seen" in data:
serializer = NotificationSerializer
elif "activities" in data:
serializer = AggregatedSerializer
return serializer(data, **kwargs)
views.py
class NotificationViewSet(viewsets.ViewSet):
"""
This viewset returns a notifications feed for the logged in user.
The feed contains events for when a relevant snippet is created.
"""
serializer_class = NotificationSerializer
def list(self, request):
feeds = feed_manager.get_news_feeds(self.request.user.id)
activities = feeds.get('timeline_aggregated').get()['results']
enriched_activities = enricher.enrich_aggregated_activities(activities)
serializer = get_activity_serializer(enriched_activities, SnippetSerializer, None, many=True)
return Response(serializer.data)
How do I get the /notifications/ endpoint to return the notifications for the signed in user?