Add: postseen model to user

backend/api/user/serializers.py

@@ -1,6 +1,6 @@
 # api/user/serializers.py
 from rest_framework import serializers
-from .models import UserProfile
+from .models import UserProfile, PostSeen
 from django.contrib.auth.models import User
 
 
@@ -44,3 +44,8 @@ class UserSerializer(serializers.ModelSerializer):
         instance.save()  # Save the User instance
         return instance
 
+
+class PostSeenSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = PostSeen
+        fields = ["user", "post_id"]