diff --git a/StockSeeker/models.py b/StockSeeker/models.py
index 34d9444..0469769 100644
--- a/StockSeeker/models.py
+++ b/StockSeeker/models.py
@@ -11,7 +11,7 @@ class Product(models.Model):
     user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="products")
     stock_limit = models.IntegerField(null=True, blank=True)
     alert_enabled = models.BooleanField(default=False)
-    
+    image = models.CharField(null=True, blank=True)
     @property
     def is_stock_low(self):
         return self.alert_enabled and self.stock_limit is not None and self.quantity < self.stock_limit
diff --git a/StockSeeker/serializers.py b/StockSeeker/serializers.py
index b015ace..05a8509 100644
--- a/StockSeeker/serializers.py
+++ b/StockSeeker/serializers.py
@@ -44,8 +44,13 @@ class ProductSerializer(serializers.ModelSerializer):
     
     class Meta:
         model = Product
-        fields = ["id", "name", "description", "quantity", "creation_date", "modification_date", "user","stock_limit","alert_enabled","is_stock_low"]
-
+        fields = ["id", "name", "description", "quantity", "creation_date", "modification_date", "user","stock_limit","alert_enabled","is_stock_low","image"]
+    
+    def validate_quantity(self, value):
+        if value < 0:
+            raise serializers.ValidationError("La quantité ne peut pas être négative.")
+        return value
+    
     def get_is_stock_low(self, obj):
         if not isinstance(obj, Product):
             return None
diff --git a/StockSeeker/views.py b/StockSeeker/views.py
index 3990934..68e7700 100644
--- a/StockSeeker/views.py
+++ b/StockSeeker/views.py
@@ -47,14 +47,9 @@ class ProductView(viewsets.ModelViewSet):
     serializer_class = ProductSerializer
     queryset = Product.objects.all()
 
-    def perform_create(self, request):
-        if 'quantity' not in request.data or request.data.get('quantity') is None:
-            return Response({"quantity": ["give a quantity"]}, status=status.HTTP_400_BAD_REQUEST)
-        serializers = self.get_serializer(data=request.data)
-        serializers.is_valid(raise_exception=True)
-        serializers.save(user=self.request.user)
-        return Response(serializers.data, status=status.HTTP_201_CREATED)
-
+    def perform_create(self, serializer):
+        serializer.save(user=self.request.user)
+        
     def get_queryset(self):
         return Product.objects.filter(user_id=self.request.user)