Put whole user object inside the message to get the username

chat/serializers.py

@@ -2,6 +2,11 @@ from django.contrib.auth.models import User
 from rest_framework import serializers
 from .models import App, Room, Message
 
+class UserSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = User
+        fields = ['id', 'username']
+
 class AppSerializer(serializers.HyperlinkedModelSerializer):
     class Meta:
         model = App
@@ -13,11 +18,9 @@ class RoomSerializer(serializers.HyperlinkedModelSerializer):
         fields = ['id', 'name', 'app']
 
 class MessageSerializer(serializers.HyperlinkedModelSerializer):
+
+    user = UserSerializer()
+
     class Meta:
         model = Message
         fields = ['id', 'text', 'date', 'user', 'room', 'parent']
-
-class UserSerializer(serializers.HyperlinkedModelSerializer):
-    class Meta:
-        model = User
-        fields = ['id', 'username']