creating Order API - custom signal

core/apps.py

@@ -4,3 +4,6 @@
 class CoreConfig(AppConfig):
     default_auto_field = 'django.db.models.BigAutoField'
     name = 'core'
+
+    def ready(self) -> None:
+        import core.signals.handlers

core/signals/handlers.py

@@ -0,0 +1,6 @@
+from django.dispatch import receiver
+from store.signals import order_created
+
+@receiver(order_created)
+def on_order_created(sender, **kwargs):
+    print(kwargs['order'])

store/apps.py

@@ -6,4 +6,4 @@ class StoreConfig(AppConfig):
     name = 'store'
 
     def ready(self) -> None:
-        import store.signals
+        import store.signals.handlers

store/serializers.py

@@ -2,6 +2,7 @@
 from django.db import transaction
 from store.models import Customer, Product, Collection, Review, Cart, CartItem, Order, OrderItem
 from rest_framework import serializers
+from .signals import order_created
 
 class SimpleProductSerializer(serializers.ModelSerializer):
     class Meta:
@@ -164,4 +165,5 @@ def save(self, **kwargs):
             OrderItem.objects.bulk_create(order_items)
             #deleting cart
             CartItem.objects.filter(pk=cart_id).delete()
+            order_created.send_robust(self.__class__, order=order)
             return order

store/signals/__init__.py

@@ -0,0 +1,3 @@
+from django.dispatch import Signal
+
+order_created = Signal()

store/signals.py → store/signals/handlers.py

@@ -1,7 +1,7 @@
 from django.conf import settings
 from django.db.models.signals import post_save
 from django.dispatch import receiver
-from .models import Customer
+from ..models import Customer
 
 @receiver(post_save, sender=settings.AUTH_USER_MODEL)
 def create_customer_for_new_user(sender, **kwargs):

store/views.py

@@ -117,7 +117,7 @@ def history(self, request, pk):
         return Response('ok')
 
 class OrderViewSet(ModelViewSet):
-    http_method_names = ['get', 'patch', 'delete', 'head', 'option']
+    http_method_names = ['get', 'post', 'patch', 'delete', 'head', 'option']
     # queryset = Order.objects.all()
     # serializer_class = OrderSerializers
     # permission_classes = [IsAuthenticated]