adds track loading example

backend/playlist/serializers/track.py

@@ -47,6 +47,9 @@ from drf_spectacular.utils import extend_schema_serializer, OpenApiExample
     ]
 )
 class TrackSerializer(serializers.HyperlinkedModelSerializer):
+    artist = serializers.CharField()
+    album_cover = serializers.CharField()
+
     class Meta:
         model = Track
         fields = '__all__'
@@ -54,5 +57,5 @@ class TrackSerializer(serializers.HyperlinkedModelSerializer):
             'url': {'view_name': 'api-track', 'lookup_field': 'id'},
             'artists': {'view_name': 'api-artist', 'lookup_field': 'id'},
             'album': {'view_name': 'api-album', 'lookup_field': 'id'},
-            'nominated_by': {'view_name': 'api-user', 'lookup_field': 'id'}
+            'nominated_by': {'view_name': 'api-user', 'lookup_field': 'id'},
         }