init DRF + sde models

api/serializers.py

@@ -0,0 +1,15 @@
+from django.contrib.auth.models import User, Group
+from rest_framework import serializers
+
+
+class UserSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = User
+        fields = ['url', 'username', 'email', 'groups']
+
+
+class GroupSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = Group
+        fields = ['url', 'name']
+