Overhauled entire project config, added notifications, email templates, optimized stripe subscriptions, redis caching, and webdriver utilities

backend/billing/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class BillingConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "billing"

backend/billing/urls.py

@@ -0,0 +1,7 @@
+from django.urls import path
+from billing import views
+
+urlpatterns = [
+    path('',
+         views.BillingHistoryView.as_view()),
+]

backend/billing/views.py

@@ -0,0 +1,61 @@
+from rest_framework import status
+from rest_framework.views import APIView
+from rest_framework.response import Response
+from rest_framework.permissions import IsAuthenticated
+from config.settings import STRIPE_SECRET_KEY
+from django.core.cache import cache
+from datetime import datetime
+import stripe
+
+
+# Make sure to set your secret key
+stripe.api_key = STRIPE_SECRET_KEY
+
+
+class BillingHistoryView(APIView):
+    permission_classes = [IsAuthenticated]
+
+    def get(self, request, *args, **kwargs):
+        requesting_user = self.request.user
+
+        if requesting_user.user_group:
+            email = requesting_user.user_group.owner.email
+        else:
+            email = requesting_user.email
+
+        # Check cache
+        key = f'billing_user:{requesting_user.id}'
+        billing_history = cache.get(key)
+
+        if not billing_history:
+            # List customers and filter by email
+            customers = stripe.Customer.list(limit=1, email=email)
+
+            if customers:
+                customer = customers.data[0]
+
+                # List customers and filter by email
+                customers = stripe.Customer.list(limit=1, email=email)
+
+                if len(customers.data) > 0:
+                    # Retrieve the customer's charges (billing history)
+                    charges = stripe.Charge.list(
+                        limit=10, customer=customer.id)
+
+                    # Prepare the response
+                    billing_history = [
+                        {
+                            'email': charge['billing_details']['email'],
+                            'amount_charged': int(charge['amount']/100),
+                            'paid': charge['paid'],
+                            'refunded': int(charge['amount_refunded']/100) > 0,
+                            'amount_refunded': int(charge['amount_refunded']/100),
+                            'last_4': charge['payment_method_details']['card']['last4'],
+                            'receipt_link': charge['receipt_url'],
+                            'timestamp': datetime.fromtimestamp(charge['created']).strftime("%m-%d-%Y %I:%M %p"),
+                        } for charge in charges.auto_paging_iter()
+                    ]
+
+                    cache.set(key, billing_history, 60*60)
+
+        return Response(billing_history, status=status.HTTP_200_OK)