struggling against the serializer (not working yet)

insalan/payment/models.py

@@ -28,6 +28,6 @@ class Transaction(models.Model):
         choices=TransactionStatus.choices,
         null=False,
         verbose_name=_("Transaction status"),
-    )
+        )
     date = models.DateField()
-
+    amount =  models.DecimalField(null=False, max_digits=5, decimal_places=2)

insalan/payment/serializers.py

@@ -2,12 +2,14 @@
 from .models import Transaction, TransactionStatus, Product
 
 class TransactionSerializer(serializers.ModelSerializer):
-    products = serializers.ListField(required=True) 
     class Meta:
         model=Transaction
-        fields = ['payer', 'amount', 'payment_status', 'date']
+        fields = ['payer', 'amount', 'payment_status', 'date', 'products']
 
 class ProductSerializer(serializers.ModelSerializer):
     class Meta:
         model = Product
         fields = "__all__"
+
+
+

insalan/payment/urls.py

@@ -8,7 +8,7 @@
     path("pay/", views.PayView.as_view(), name="pay"),
     path("product/", views.ProductList.as_view(), name="list-product"),
     path("product/<int:pk>/", views.ProductDetails.as_view(), name="product-details"),
-    path("new/", views.CreateProduct.as_view(), name="new-product"),
+    path("product/new/", views.CreateProduct.as_view(), name="new-product"),
     path("transaction/", views.TransactionList.as_view(), name="transactions"),
     path("transaction/<int:pk>", views.TransactionPerId.as_view(), name="transactions/id"),
 ]

insalan/payment/views.py

@@ -8,8 +8,10 @@
 from .serializers import TransactionSerializer
 from datetime import date
 from .tokens import tokens
-from rest_framework import generics, permissions
-
+from rest_framework import generics, permissions, status
+from rest_framework.views import APIView
+from rest_framework.response import Response
+from rest_framework.authentication import SessionAuthentication
 from django.shortcuts import render
 import insalan.payment.serializers as serializers
 from .models import Product, Transaction
@@ -40,12 +42,21 @@ class TransactionPerId(generics.RetrieveAPIView):
     queryset = Transaction.objects.all().order_by('date')
     permission_classes = [permissions.IsAdminUser]
 
-
 class CreateProduct(generics.CreateAPIView):
-    pass
+    serializer_class = serializers.ProductSerializer
+    queryset = Product.objects.all()
+    permission_classes = [permissions.IsAdminUser]
 
 class PayView(generics.CreateAPIView):
-    pass
+    permission_classes = [permissions.IsAuthenticated]
+    authentication_classes = [SessionAuthentication]
+    serializer_class =  serializers.TransactionSerializer
+
+    def create(self, request):
+        product_list = serializers.ProductSerializer(request.data['products'], many=True)
+        transaction = Transaction(payer=request.user)
+        transaction.products.set(product_list)
+        return Response(TransactionSerializer(transaction), status=status.HTTP_200_OK)  
     """
     # lets parse the request
     user=request.user