Merge branch 'order-processflow-redesign' of https://github.com/dotnet-architecture/eShopOnContainers into order-processflow-redesign

docker-compose.override.yml

@@ -11,7 +11,6 @@ services:
     environment:
       - ConnectionString=Server=sql.data;Database=Microsoft.eShopOnContainers.Services.OrderingDb;User Id=sa;Password=Pass@word
       - EventBusConnection=rabbitmq
-      - GracePeriod=15 #In minutes
       
   basket.api:
     environment:

src/Services/Basket/Basket.API/Controllers/BasketController.cs

@@ -53,16 +53,16 @@ namespace Microsoft.eShopOnContainers.Services.Basket.API.Controllers
 
         [Route("checkout")]
         [HttpPost]
-        public async Task<IActionResult> Checkout([FromBody]BasketCheckout value, [FromHeader(Name = "x-requestid")] string requestId)
+        public async Task<IActionResult> Checkout([FromBody]BasketCheckout basketCheckout, [FromHeader(Name = "x-requestid")] string requestId)
         {
             var userId = _identitySvc.GetUserIdentity();
-            value.RequestId = (Guid.TryParse(requestId, out Guid guid) && guid != Guid.Empty) ?
-                guid : value.RequestId;
+            basketCheckout.RequestId = (Guid.TryParse(requestId, out Guid guid) && guid != Guid.Empty) ?
+                guid : basketCheckout.RequestId;
 
             var basket = await _repository.GetBasketAsync(userId);
-            var eventMessage = new UserCheckoutAcceptedIntegrationEvent(userId, value.City, value.Street,
-                value.State, value.Country, value.ZipCode, value.CardNumber, value.CardHolderName,
-                value.CardExpiration, value.CardSecurityNumber, value.CardTypeId, value.Buyer, value.RequestId, basket);
+            var eventMessage = new UserCheckoutAcceptedIntegrationEvent(userId, basketCheckout.City, basketCheckout.Street,
+                basketCheckout.State, basketCheckout.Country, basketCheckout.ZipCode, basketCheckout.CardNumber, basketCheckout.CardHolderName,
+                basketCheckout.CardExpiration, basketCheckout.CardSecurityNumber, basketCheckout.CardTypeId, basketCheckout.Buyer, basketCheckout.RequestId, basket);
 
             // Once basket is checkout, sends an integration event to
             // ordering.api to convert basket to order and proceeds with

src/Services/Catalog/Catalog.API/IntegrationEvents/EventHandling/OrderStatusChangedToAwaitingValidationIntegrationEventHandler.cs

@@ -1,4 +1,4 @@
-namespace Microsoft.eShopOnContainers.Services.Catalog.API.IntegrationCommands.CommandHandlers
+namespace Microsoft.eShopOnContainers.Services.Catalog.API.IntegrationEvents.EventHandling
 {
     using BuildingBlocks.EventBus.Abstractions;
     using System.Threading.Tasks;
@@ -6,53 +6,41 @@
     using Infrastructure;
     using System.Collections.Generic;
     using System.Linq;
-    using global::Catalog.API.Infrastructure.Exceptions;
     using global::Catalog.API.IntegrationEvents;
-    using Model;
-    using Commands;
     using IntegrationEvents.Events;
 
-    public class ConfirmOrderStockCommandHandler : IIntegrationEventHandler<ConfirmOrderStockCommand>
+    public class OrderStatusChangedToAwaitingValidationIntegrationEventHandler : 
+        IIntegrationEventHandler<OrderStatusChangedToAwaitingValidationIntegrationEvent>
     {
         private readonly CatalogContext _catalogContext;
         private readonly ICatalogIntegrationEventService _catalogIntegrationEventService;
 
-        public ConfirmOrderStockCommandHandler(CatalogContext catalogContext,
+        public OrderStatusChangedToAwaitingValidationIntegrationEventHandler(CatalogContext catalogContext,
             ICatalogIntegrationEventService catalogIntegrationEventService)
         {
             _catalogContext = catalogContext;
             _catalogIntegrationEventService = catalogIntegrationEventService;
         }
 
-        public async Task Handle(ConfirmOrderStockCommand command)
+        public async Task Handle(OrderStatusChangedToAwaitingValidationIntegrationEvent command)
         {
             var confirmedOrderStockItems = new List<ConfirmedOrderStockItem>();
 
             foreach (var orderStockItem in command.OrderStockItems)
             {
                 var catalogItem = _catalogContext.CatalogItems.Find(orderStockItem.ProductId);
-                CheckValidcatalogItemId(catalogItem);
-
-                var confirmedOrderStockItem = new ConfirmedOrderStockItem(catalogItem.Id, 
-                    catalogItem.AvailableStock >= orderStockItem.Units);
+                var hasStock = catalogItem.AvailableStock >= orderStockItem.Units;
+                var confirmedOrderStockItem = new ConfirmedOrderStockItem(catalogItem.Id, hasStock);
 
                 confirmedOrderStockItems.Add(confirmedOrderStockItem);
             }
 
             var confirmedIntegrationEvent = confirmedOrderStockItems.Any(c => !c.HasStock)
-                ? (IntegrationEvent) new OrderStockNotConfirmedIntegrationEvent(command.OrderId, confirmedOrderStockItems)
+                ? (IntegrationEvent) new OrderStockRejectedIntegrationEvent(command.OrderId, confirmedOrderStockItems)
                 : new OrderStockConfirmedIntegrationEvent(command.OrderId);
 
             await _catalogIntegrationEventService.SaveEventAndCatalogContextChangesAsync(confirmedIntegrationEvent);
             await _catalogIntegrationEventService.PublishThroughEventBusAsync(confirmedIntegrationEvent);
         }
-
-        private void CheckValidcatalogItemId(CatalogItem catalogItem)
-        {
-            if (catalogItem is null)
-            {
-                throw new CatalogDomainException("Not able to process catalog event. Reason: no valid catalogItemId");
-            }
-        }
     }
 }

src/Services/Catalog/Catalog.API/IntegrationEvents/EventHandling/OrderStatusChangedToPaidIntegrationEventHandler.cs

@@ -1,20 +1,21 @@
-namespace Microsoft.eShopOnContainers.Services.Catalog.API.IntegrationCommands.CommandHandlers
+namespace Microsoft.eShopOnContainers.Services.Catalog.API.IntegrationEvents.EventHandling
 {
     using BuildingBlocks.EventBus.Abstractions;
     using System.Threading.Tasks;
     using Infrastructure;
-    using Commands;
+    using Microsoft.eShopOnContainers.Services.Catalog.API.IntegrationEvents.Events;
 
-    public class DecrementOrderStockCommandHandler : IIntegrationEventHandler<DecrementOrderStockCommand>
+    public class OrderStatusChangedToPaidIntegrationEventHandler : 
+        IIntegrationEventHandler<OrderStatusChangedToPaidIntegrationEvent>
     {
         private readonly CatalogContext _catalogContext;
 
-        public DecrementOrderStockCommandHandler(CatalogContext catalogContext)
+        public OrderStatusChangedToPaidIntegrationEventHandler(CatalogContext catalogContext)
         {
             _catalogContext = catalogContext;
         }
 
-        public async Task Handle(DecrementOrderStockCommand command)
+        public async Task Handle(OrderStatusChangedToPaidIntegrationEvent command)
         {
             //we're not blocking stock/inventory
             foreach (var orderStockItem in command.OrderStockItems)

src/Services/Catalog/Catalog.API/IntegrationEvents/Events/OrderStatusChangedToAwaitingValidationIntegrationEvent.cs

@@ -1,14 +1,14 @@
-namespace Microsoft.eShopOnContainers.Services.Catalog.API.IntegrationCommands.Commands
+namespace Microsoft.eShopOnContainers.Services.Catalog.API.IntegrationEvents.Events
 {
     using BuildingBlocks.EventBus.Events;
     using System.Collections.Generic;
 
-    public class ConfirmOrderStockCommand : IntegrationEvent
+    public class OrderStatusChangedToAwaitingValidationIntegrationEvent : IntegrationEvent
     {
         public int OrderId { get; }
         public IEnumerable<OrderStockItem> OrderStockItems { get; }
 
-        public ConfirmOrderStockCommand(int orderId,
+        public OrderStatusChangedToAwaitingValidationIntegrationEvent(int orderId,
             IEnumerable<OrderStockItem> orderStockItems)
         {
             OrderId = orderId;

src/Services/Catalog/Catalog.API/IntegrationEvents/Events/OrderStatusChangedToPaidIntegrationEvent.cs

@@ -1,14 +1,14 @@
-namespace Microsoft.eShopOnContainers.Services.Catalog.API.IntegrationCommands.Commands
+namespace Microsoft.eShopOnContainers.Services.Catalog.API.IntegrationEvents.Events
 {
     using System.Collections.Generic;
     using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
 
-    public class DecrementOrderStockCommand : IntegrationEvent
+    public class OrderStatusChangedToPaidIntegrationEvent : IntegrationEvent
     {
         public int OrderId { get; }
         public IEnumerable<OrderStockItem> OrderStockItems { get; }
 
-        public DecrementOrderStockCommand(int orderId,
+        public OrderStatusChangedToPaidIntegrationEvent(int orderId,
             IEnumerable<OrderStockItem> orderStockItems)
         {
             OrderId = orderId;

src/Services/Catalog/Catalog.API/IntegrationEvents/Events/OrderStockRejectedIntegrationEvent.cs

@@ -3,13 +3,13 @@
     using BuildingBlocks.EventBus.Events;
     using System.Collections.Generic;
 
-    public class OrderStockNotConfirmedIntegrationEvent : IntegrationEvent
+    public class OrderStockRejectedIntegrationEvent : IntegrationEvent
     {
         public int OrderId { get; }
 
         public List<ConfirmedOrderStockItem> OrderStockItems { get; }
 
-        public OrderStockNotConfirmedIntegrationEvent(int orderId,
+        public OrderStockRejectedIntegrationEvent(int orderId,
             List<ConfirmedOrderStockItem> orderStockItems)
         {
             OrderId = orderId;

src/Services/Catalog/Catalog.API/Startup.cs

@@ -14,9 +14,8 @@
     using Microsoft.eShopOnContainers.BuildingBlocks.IntegrationEventLogEF;
     using Microsoft.eShopOnContainers.BuildingBlocks.IntegrationEventLogEF.Services;
     using Microsoft.eShopOnContainers.Services.Catalog.API.Infrastructure;
-    using Microsoft.eShopOnContainers.Services.Catalog.API.IntegrationCommands.Commands;
-    using Microsoft.eShopOnContainers.Services.Catalog.API.IntegrationEvents;
-    using Microsoft.eShopOnContainers.Services.Catalog.API.IntegrationCommands.CommandHandlers;
+    using Microsoft.eShopOnContainers.Services.Catalog.API.IntegrationEvents.EventHandling;
+    using Microsoft.eShopOnContainers.Services.Catalog.API.IntegrationEvents.Events;
     using Microsoft.Extensions.Configuration;
     using Microsoft.Extensions.DependencyInjection;
     using Microsoft.Extensions.HealthChecks;
@@ -27,7 +26,7 @@
     using System.Data.Common;
     using System.Data.SqlClient;
     using System.Reflection;
-    
+
     public class Startup
     {
         public IConfigurationRoot Configuration { get; }
@@ -190,19 +189,20 @@
             services.AddSingleton<IEventBusSubscriptionsManager, InMemoryEventBusSubscriptionsManager>();
             services.AddSingleton<IEventBus, EventBusRabbitMQ>();
 
-            services.AddTransient<IIntegrationEventHandler<ConfirmOrderStockCommand>,
-                ConfirmOrderStockCommandHandler>();
-            services.AddTransient<IIntegrationEventHandler<DecrementOrderStockCommand>,
-                DecrementOrderStockCommandHandler>();
-
+            services.AddTransient<IIntegrationEventHandler<OrderStatusChangedToAwaitingValidationIntegrationEvent>,
+                OrderStatusChangedToAwaitingValidationIntegrationEventHandler>();
+            services.AddTransient<IIntegrationEventHandler<OrderStatusChangedToPaidIntegrationEvent>,
+                OrderStatusChangedToPaidIntegrationEventHandler>();
         }
 
         private void ConfigureEventBus(IApplicationBuilder app)
         {
             var eventBus = app.ApplicationServices.GetRequiredService<IEventBus>();
 
-            eventBus.Subscribe<ConfirmOrderStockCommand, IIntegrationEventHandler<ConfirmOrderStockCommand>>();
-            eventBus.Subscribe<DecrementOrderStockCommand, IIntegrationEventHandler<DecrementOrderStockCommand>>();
+            eventBus.Subscribe<OrderStatusChangedToAwaitingValidationIntegrationEvent, 
+                IIntegrationEventHandler<OrderStatusChangedToAwaitingValidationIntegrationEvent>>();
+            eventBus.Subscribe<OrderStatusChangedToPaidIntegrationEvent, 
+                IIntegrationEventHandler<OrderStatusChangedToPaidIntegrationEvent>>();
         }
     }
 }

src/Services/Ordering/Ordering.API/Application/DomainEventHandlers/BuyerAndPaymentMethodVerified/UpdateOrderWhenBuyerAndPaymentMethodVerifiedDomainEventHandler.cs

@@ -36,11 +36,7 @@ namespace Ordering.API.Application.DomainEventHandlers.BuyerAndPaymentMethodVeri
                                     
             var orderStartedIntegrationEvent = new OrderStartedIntegrationEvent(buyerPaymentMethodVerifiedEvent.Buyer.IdentityGuid);
 
-            await _orderingIntegrationEventService
-                .SaveEventAndOrderingContextChangesAsync(orderStartedIntegrationEvent);
-
-            await _orderingIntegrationEventService
-                .PublishThroughEventBusAsync(orderStartedIntegrationEvent);
+            await _orderingIntegrationEventService.PublishThroughEventBusAsync(orderStartedIntegrationEvent);
 
             _logger.CreateLogger(nameof(UpdateOrderWhenBuyerAndPaymentMethodVerifiedDomainEventHandler))
                 .LogTrace($"Order with Id: {buyerPaymentMethodVerifiedEvent.OrderId} has been successfully updated with a payment method id: { buyerPaymentMethodVerifiedEvent.Payment.Id }");                        

src/Services/Ordering/Ordering.API/Application/DomainEventHandlers/OrderGracePeriodConfirmed/OrderStatusChangedToAwaitingValidationDomainEventHandler.cs

@@ -6,9 +6,9 @@
     using Domain.Events;
     using System;
     using System.Threading.Tasks;
-    using Ordering.API.Application.IntegrationCommands.Commands;
     using Ordering.API.Application.IntegrationEvents;
     using System.Linq;
+    using Ordering.API.Application.IntegrationEvents.Events;
 
     public class OrderStatusChangedToAwaitingValidationDomainEventHandler
                    : IAsyncNotificationHandler<OrderStatusChangedToAwaitingValidationDomainEvent>
@@ -35,10 +35,9 @@
             var orderStockList = orderStatusChangedToAwaitingValidationDomainEvent.OrderItems
                 .Select(orderItem => new OrderStockItem(orderItem.ProductId, orderItem.GetUnits()));
 
-            var confirmOrderStockCommand = new ConfirmOrderStockCommand(orderStatusChangedToAwaitingValidationDomainEvent.OrderId, 
-                orderStockList);
-            await _orderingIntegrationEventService.SaveEventAndOrderingContextChangesAsync(confirmOrderStockCommand);
-            await _orderingIntegrationEventService.PublishThroughEventBusAsync(confirmOrderStockCommand);
+            var orderStatusChangedToAwaitingValidationIntegrationEvent = new OrderStatusChangedToAwaitingValidationIntegrationEvent(
+                orderStatusChangedToAwaitingValidationDomainEvent.OrderId, orderStockList);
+            await _orderingIntegrationEventService.PublishThroughEventBusAsync(orderStatusChangedToAwaitingValidationIntegrationEvent);
         }
     }  
 }

src/Services/Ordering/Ordering.API/Application/DomainEventHandlers/OrderPaid/OrderStatusChangedToPaidDomainEventHandler.cs

@@ -6,9 +6,9 @@
     using Domain.Events;
     using System;
     using System.Threading.Tasks;
-    using Ordering.API.Application.IntegrationCommands.Commands;
     using Ordering.API.Application.IntegrationEvents;
     using System.Linq;
+    using Ordering.API.Application.IntegrationEvents.Events;
 
     public class OrderStatusChangedToPaidDomainEventHandler
                    : IAsyncNotificationHandler<OrderStatusChangedToPaidDomainEvent>
@@ -35,10 +35,9 @@
             var orderStockList = orderStatusChangedToPaidDomainEvent.OrderItems
                 .Select(orderItem => new OrderStockItem(orderItem.ProductId, orderItem.GetUnits()));
 
-            var decrementOrderStockCommand = new DecrementOrderStockCommand(orderStatusChangedToPaidDomainEvent.OrderId,
+            var orderStatusChangedToPaidIntegrationEvent = new OrderStatusChangedToPaidIntegrationEvent(orderStatusChangedToPaidDomainEvent.OrderId,
                 orderStockList);
-            await _orderingIntegrationEventService.SaveEventAndOrderingContextChangesAsync(decrementOrderStockCommand);
-            await _orderingIntegrationEventService.PublishThroughEventBusAsync(decrementOrderStockCommand);
+            await _orderingIntegrationEventService.PublishThroughEventBusAsync(orderStatusChangedToPaidIntegrationEvent);
         }
     }  
 }

src/Services/Ordering/Ordering.API/Application/DomainEventHandlers/OrderStockConfirmed/OrderStatusChangedToStockConfirmedDomainEventHandler.cs

@@ -6,8 +6,8 @@
     using Domain.Events;
     using System;
     using System.Threading.Tasks;
-    using Ordering.API.Application.IntegrationCommands.Commands;
     using Ordering.API.Application.IntegrationEvents;
+    using Ordering.API.Application.IntegrationEvents.Events;
 
     public class OrderStatusChangedToStockConfirmedDomainEventHandler
                    : IAsyncNotificationHandler<OrderStatusChangedToStockConfirmedDomainEvent>
@@ -31,9 +31,8 @@
                 .LogTrace($"Order with Id: {orderStatusChangedToStockConfirmedDomainEvent.OrderId} has been successfully updated with " +
                           $"a status order id: {OrderStatus.StockConfirmed.Id}");
 
-            var payOrderCommand = new PayOrderCommand(orderStatusChangedToStockConfirmedDomainEvent.OrderId);
-            await _orderingIntegrationEventService.SaveEventAndOrderingContextChangesAsync(payOrderCommand);
-            await _orderingIntegrationEventService.PublishThroughEventBusAsync(payOrderCommand);
+            var orderStatusChangedToStockConfirmedIntegrationEvent = new OrderStatusChangedToStockConfirmedIntegrationEvent(orderStatusChangedToStockConfirmedDomainEvent.OrderId);
+            await _orderingIntegrationEventService.PublishThroughEventBusAsync(orderStatusChangedToStockConfirmedIntegrationEvent);
         }
     }  
 }

src/Services/Ordering/Ordering.API/Application/IntegrationCommands/Commands/ConfirmGracePeriodCommand.cs

@@ -1,12 +0,0 @@
-using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
-
-namespace Ordering.API.Application.IntegrationCommands.Commands
-{
-    public class ConfirmGracePeriodCommand : IntegrationEvent
-    {
-        public int OrderId { get; }
-
-        public ConfirmGracePeriodCommand(int orderId) =>
-            OrderId = orderId;
-    }
-}

src/Services/Ordering/Ordering.API/Application/IntegrationCommands/Commands/PayOrderCommand.cs

@@ -1,14 +0,0 @@
-namespace Ordering.API.Application.IntegrationCommands.Commands
-{
-    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
-
-    public class PayOrderCommand : IntegrationEvent
-    {
-        public int OrderId { get; }
-
-        public PayOrderCommand(int orderId)
-        {
-            OrderId = orderId;
-        }
-    }
-}

src/Services/Ordering/Ordering.API/Application/IntegrationEvents/EventHandling/OrderPaymentFailedIntegrationEventHandler.cs

@@ -17,7 +17,7 @@
 
         public async Task Handle(OrderPaymentFailedIntegrationEvent @event)
         {
-            var orderToUpdate = await _orderRepository.GetWithDependenciesAsync(@event.OrderId);
+            var orderToUpdate = await _orderRepository.GetAsync(@event.OrderId);
 
             orderToUpdate.SetCancelledStatus();
 

src/Services/Ordering/Ordering.API/Application/IntegrationEvents/EventHandling/OrderPaymentSuccededIntegrationEventHandler.cs

@@ -17,7 +17,7 @@
 
         public async Task Handle(OrderPaymentSuccededIntegrationEvent @event)
         {
-            var orderToUpdate = await _orderRepository.GetWithDependenciesAsync(@event.OrderId);
+            var orderToUpdate = await _orderRepository.GetAsync(@event.OrderId);
 
             orderToUpdate.SetPaidStatus();
 

src/Services/Ordering/Ordering.API/Application/IntegrationEvents/EventHandling/OrderStockConfirmedIntegrationEventHandler.cs

@@ -17,7 +17,7 @@
 
         public async Task Handle(OrderStockConfirmedIntegrationEvent @event)
         {
-            var orderToUpdate = await _orderRepository.GetWithDependenciesAsync(@event.OrderId);
+            var orderToUpdate = await _orderRepository.GetAsync(@event.OrderId);
 
             orderToUpdate.SetStockConfirmedStatus();
 

src/Services/Ordering/Ordering.API/Application/IntegrationEvents/EventHandling/OrderStockNotConfirmedIntegrationEventHandler.cs

@@ -1,33 +0,0 @@
-using System.Linq;
-using Ordering.API.Application.IntegrationCommands.Commands;
-
-namespace Ordering.API.Application.IntegrationEvents.EventHandling
-{
-    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Abstractions;
-    using System.Threading.Tasks;
-    using Events;
-    using Microsoft.eShopOnContainers.Services.Ordering.Domain.AggregatesModel.OrderAggregate;
-
-    public class OrderStockNotConfirmedIntegrationEventHandler : IIntegrationEventHandler<OrderStockNotConfirmedIntegrationEvent>
-    {
-        private readonly IOrderRepository _orderRepository;
-
-        public OrderStockNotConfirmedIntegrationEventHandler(IOrderRepository orderRepository)
-        {
-            _orderRepository = orderRepository;
-        }
-
-        public async Task Handle(OrderStockNotConfirmedIntegrationEvent @event)
-        {
-            var orderToUpdate = await _orderRepository.GetWithDependenciesAsync(@event.OrderId);
-
-            var orderStockNotConfirmedItems = @event.OrderStockItems
-                .FindAll(c => !c.HasStock)
-                .Select(c => c.ProductId);
-
-            orderToUpdate.SetStockConfirmedStatus(orderStockNotConfirmedItems);
-
-            await _orderRepository.UnitOfWork.SaveEntitiesAsync();
-        }
-    }
-}

src/Services/Ordering/Ordering.API/Application/IntegrationEvents/EventHandling/OrderStockRejectedIntegrationEventHandler.cs

@@ -0,0 +1,31 @@
+namespace Ordering.API.Application.IntegrationEvents.EventHandling
+{
+    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Abstractions;
+    using System.Threading.Tasks;
+    using Events;
+    using System.Linq;
+    using Microsoft.eShopOnContainers.Services.Ordering.Domain.AggregatesModel.OrderAggregate;
+
+    public class OrderStockRejectedIntegrationEventHandler : IIntegrationEventHandler<OrderStockRejectedIntegrationEvent>
+    {
+        private readonly IOrderRepository _orderRepository;
+
+        public OrderStockRejectedIntegrationEventHandler(IOrderRepository orderRepository)
+        {
+            _orderRepository = orderRepository;
+        }
+
+        public async Task Handle(OrderStockRejectedIntegrationEvent @event)
+        {
+            var orderToUpdate = await _orderRepository.GetAsync(@event.OrderId);
+
+            var orderStockRejectedItems = @event.OrderStockItems
+                .FindAll(c => !c.HasStock)
+                .Select(c => c.ProductId);
+
+            orderToUpdate.SetCancelledStatusWhenStockIsRejected(orderStockRejectedItems);
+
+            await _orderRepository.UnitOfWork.SaveEntitiesAsync();
+        }
+    }
+}

src/Services/Ordering/Ordering.API/Application/IntegrationEvents/Events/GracePeriodConfirmedIntegrationEvent.cs

@@ -0,0 +1,12 @@
+namespace Ordering.API.Application.IntegrationEvents.Events
+{
+    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
+
+    public class GracePeriodConfirmedIntegrationEvent : IntegrationEvent
+    {
+        public int OrderId { get; }
+
+        public GracePeriodConfirmedIntegrationEvent(int orderId) =>
+            OrderId = orderId;
+    }
+}

src/Services/Ordering/Ordering.API/Application/IntegrationEvents/Events/OrderPaymentFailedIntegrationEvent .cs

@@ -1,11 +1,11 @@
-using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
-
-namespace Ordering.API.Application.IntegrationEvents.Events
+namespace Ordering.API.Application.IntegrationEvents.Events
 {
+    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
+
     public class OrderPaymentFailedIntegrationEvent : IntegrationEvent
     {
         public int OrderId { get; }
 
         public OrderPaymentFailedIntegrationEvent(int orderId) => OrderId = orderId;
     }
-}
+}

src/Services/Ordering/Ordering.API/Application/IntegrationEvents/Events/OrderPaymentSuccededIntegrationEvent.cs

@@ -1,11 +1,11 @@
-using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
-
-namespace Ordering.API.Application.IntegrationEvents.Events
+namespace Ordering.API.Application.IntegrationEvents.Events
 {
+    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
+
     public class OrderPaymentSuccededIntegrationEvent : IntegrationEvent
     {
         public int OrderId { get; }
 
         public OrderPaymentSuccededIntegrationEvent(int orderId) => OrderId = orderId;
     }
-}
+}

src/Services/Ordering/Ordering.API/Application/IntegrationEvents/Events/OrderStatusChangedToAwaitingValidationIntegrationEvent.cs

@@ -1,14 +1,14 @@
-namespace Ordering.API.Application.IntegrationCommands.Commands
+namespace Ordering.API.Application.IntegrationEvents.Events
 {
     using System.Collections.Generic;
     using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
 
-    public class ConfirmOrderStockCommand : IntegrationEvent
+    public class OrderStatusChangedToAwaitingValidationIntegrationEvent : IntegrationEvent
     {
         public int OrderId { get; }
         public IEnumerable<OrderStockItem> OrderStockItems { get; }
 
-        public ConfirmOrderStockCommand(int orderId,
+        public OrderStatusChangedToAwaitingValidationIntegrationEvent(int orderId,
             IEnumerable<OrderStockItem> orderStockItems)
         {
             OrderId = orderId;

src/Services/Ordering/Ordering.API/Application/IntegrationEvents/Events/OrderStatusChangedToPaidIntegrationEvent.cs

@@ -1,14 +1,14 @@
-namespace Ordering.API.Application.IntegrationCommands.Commands
+namespace Ordering.API.Application.IntegrationEvents.Events
 {
     using System.Collections.Generic;
     using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
 
-    public class DecrementOrderStockCommand : IntegrationEvent
+    public class OrderStatusChangedToPaidIntegrationEvent : IntegrationEvent
     {
         public int OrderId { get; }
         public IEnumerable<OrderStockItem> OrderStockItems { get; }
 
-        public DecrementOrderStockCommand(int orderId,
+        public OrderStatusChangedToPaidIntegrationEvent(int orderId,
             IEnumerable<OrderStockItem> orderStockItems)
         {
             OrderId = orderId;

src/Services/Ordering/Ordering.API/Application/IntegrationEvents/Events/OrderStatusChangedToStockConfirmedIntegrationEvent.cs

@@ -0,0 +1,12 @@
+namespace Ordering.API.Application.IntegrationEvents.Events
+{
+    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
+
+    public class OrderStatusChangedToStockConfirmedIntegrationEvent : IntegrationEvent
+    {
+        public int OrderId { get; }
+
+        public OrderStatusChangedToStockConfirmedIntegrationEvent(int orderId)
+            => OrderId = orderId;
+    }
+}

src/Services/Ordering/Ordering.API/Application/IntegrationEvents/Events/OrderStockRejectedIntegrationEvent.cs

@@ -1,16 +1,15 @@
-using System.Collections.Generic;
-
-namespace Ordering.API.Application.IntegrationEvents.Events
+namespace Ordering.API.Application.IntegrationEvents.Events
 {
     using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
+    using System.Collections.Generic;
 
-    public class OrderStockNotConfirmedIntegrationEvent : IntegrationEvent
+    public class OrderStockRejectedIntegrationEvent : IntegrationEvent
     {
         public int OrderId { get; }
 
         public List<ConfirmedOrderStockItem> OrderStockItems { get; }
 
-        public OrderStockNotConfirmedIntegrationEvent(int orderId,
+        public OrderStockRejectedIntegrationEvent(int orderId,
             List<ConfirmedOrderStockItem> orderStockItems)
         {
             OrderId = orderId;

src/Services/Ordering/Ordering.API/Application/IntegrationEvents/IOrderingIntegrationEventService.cs

@@ -5,7 +5,6 @@ namespace Ordering.API.Application.IntegrationEvents
 {
     public interface IOrderingIntegrationEventService
     {
-        Task SaveEventAndOrderingContextChangesAsync(IntegrationEvent evt);
         Task PublishThroughEventBusAsync(IntegrationEvent evt);
     }
 }

src/Services/Ordering/Ordering.API/Application/IntegrationEvents/OrderingIntegrationEventService.cs

@@ -30,11 +30,12 @@ namespace Ordering.API.Application.IntegrationEvents
 
         public async Task PublishThroughEventBusAsync(IntegrationEvent evt)
         {
+            await SaveEventAndOrderingContextChangesAsync(evt);
             _eventBus.Publish(evt);
             await _eventLogService.MarkEventAsPublishedAsync(evt);
         }
 
-        public async Task SaveEventAndOrderingContextChangesAsync(IntegrationEvent evt)
+        private async Task SaveEventAndOrderingContextChangesAsync(IntegrationEvent evt)
         {
             //Use of an EF Core resiliency strategy when using multiple DbContexts within an explicit BeginTransaction():
             //See: https://docs.microsoft.com/en-us/ef/core/miscellaneous/connection-resiliency            

src/Services/Ordering/Ordering.API/Application/Sagas/OrderProcessSaga.cs

@@ -5,8 +5,7 @@ using Microsoft.eShopOnContainers.Services.Ordering.Domain.AggregatesModel.Order
 using Microsoft.eShopOnContainers.Services.Ordering.Infrastructure;
 using Microsoft.eShopOnContainers.Services.Ordering.Infrastructure.Idempotency;
 using Ordering.API.Application.Commands;
-using Ordering.API.Application.IntegrationCommands.Commands;
-using Ordering.API.Application.IntegrationEvents;
+using Ordering.API.Application.IntegrationEvents.Events;
 using Ordering.Domain.Exceptions;
 using System.Threading.Tasks;
 
@@ -21,7 +20,7 @@ namespace Ordering.API.Application.Sagas
     /// with the validations.
     /// </summary>
     public class OrderProcessSaga : OrderSaga,
-        IIntegrationEventHandler<ConfirmGracePeriodCommand>,
+        IIntegrationEventHandler<GracePeriodConfirmedIntegrationEvent>,
         IAsyncRequestHandler<CancelOrderCommand, bool>,
         IAsyncRequestHandler<ShipOrderCommand, bool>
     {
@@ -43,9 +42,9 @@ namespace Ordering.API.Application.Sagas
         /// period has completed.
         /// </param>
         /// <returns></returns>
-        public async Task Handle(ConfirmGracePeriodCommand command)
+        public async Task Handle(GracePeriodConfirmedIntegrationEvent @event)
         {
-            var orderSaga = FindSagaById(command.OrderId);
+            var orderSaga = FindSagaById(@event.OrderId);
             CheckValidSagaId(orderSaga);
 
             orderSaga.SetAwaitingValidationStatus();
@@ -96,8 +95,6 @@ namespace Ordering.API.Application.Sagas
             }
         }
 
-        #region CommandHandlerIdentifiers
-
         public class CancelOrderCommandIdentifiedHandler : IdentifierCommandHandler<CancelOrderCommand, bool>
         {
             public CancelOrderCommandIdentifiedHandler(IMediator mediator, IRequestManager requestManager) : base(mediator, requestManager)
@@ -121,7 +118,5 @@ namespace Ordering.API.Application.Sagas
                 return true;                // Ignore duplicate requests for processing order.
             }
         }
-
-        #endregion
     }
 }

src/Services/Ordering/Ordering.API/Application/Sagas/OrderSaga.cs

@@ -17,12 +17,11 @@ namespace Ordering.API.Application.Sagas
 
         public override Order FindSagaById(int id)
         {
-            var order = _orderingContext.Orders
+            return _orderingContext.Orders
                 .Include(c => c.OrderStatus)
                 .Include(c => c.OrderItems)
+                .Include(c => c.Address)
                 .Single(c => c.Id == id);
-
-            return order;
         }
 
         public override async Task<bool> SaveChangesAsync()

src/Services/Ordering/Ordering.API/Ordering.API.csproj

@@ -79,7 +79,6 @@
   </ItemGroup>
 
   <ItemGroup>
-    <Folder Include="Application\IntegrationCommands\CommandHandlers\" />
     <Folder Include="Infrastructure\IntegrationEventMigrations\" />
   </ItemGroup>
 

src/Services/Ordering/Ordering.API/Startup.cs

@@ -3,11 +3,9 @@
     using AspNetCore.Http;
     using Autofac;
     using Autofac.Extensions.DependencyInjection;
-    using global::Ordering.API.Application.IntegrationCommands.Commands;
     using global::Ordering.API.Application.IntegrationEvents;
     using global::Ordering.API.Application.IntegrationEvents.EventHandling;
     using global::Ordering.API.Application.IntegrationEvents.Events;
-    using global::Ordering.API.Application.Sagas;
     using global::Ordering.API.Infrastructure.Middlewares;
     using Infrastructure;
     using Infrastructure.Auth;
@@ -169,24 +167,18 @@
         {
             services.AddSingleton<IEventBus, EventBusRabbitMQ>();
             services.AddSingleton<IEventBusSubscriptionsManager, InMemoryEventBusSubscriptionsManager>();
-            services.AddTransient<IIntegrationEventHandler<ConfirmGracePeriodCommand>, OrderProcessSaga>();
-            services.AddTransient<UserCheckoutAcceptedIntegrationEventHandler>();            
-            services.AddTransient<OrderStockConfirmedIntegrationEventHandler>();
-            services.AddTransient<OrderStockNotConfirmedIntegrationEventHandler>();
-            services.AddTransient<OrderPaymentFailedIntegrationEventHandler>();
-            services.AddTransient<OrderPaymentSuccededIntegrationEventHandler>();
         }
 
         private void ConfigureEventBus(IApplicationBuilder app)
         {
             var eventBus = app.ApplicationServices.GetRequiredService<IEventBus>();
 
-            eventBus.Subscribe<ConfirmGracePeriodCommand, IIntegrationEventHandler<ConfirmGracePeriodCommand>>();
-            eventBus.Subscribe<UserCheckoutAcceptedIntegrationEvent, UserCheckoutAcceptedIntegrationEventHandler>();            
-            eventBus.Subscribe<OrderStockConfirmedIntegrationEvent, OrderStockConfirmedIntegrationEventHandler>();
-            eventBus.Subscribe<OrderStockNotConfirmedIntegrationEvent, OrderStockNotConfirmedIntegrationEventHandler>();
-            eventBus.Subscribe<OrderPaymentFailedIntegrationEvent, OrderPaymentFailedIntegrationEventHandler>();
-            eventBus.Subscribe<OrderPaymentSuccededIntegrationEvent, OrderPaymentSuccededIntegrationEventHandler>();
+            eventBus.Subscribe<UserCheckoutAcceptedIntegrationEvent, IIntegrationEventHandler<UserCheckoutAcceptedIntegrationEvent>>();
+            eventBus.Subscribe<GracePeriodConfirmedIntegrationEvent, IIntegrationEventHandler<GracePeriodConfirmedIntegrationEvent>>();
+            eventBus.Subscribe<OrderStockConfirmedIntegrationEvent, IIntegrationEventHandler<OrderStockConfirmedIntegrationEvent>>();
+            eventBus.Subscribe<OrderStockRejectedIntegrationEvent, IIntegrationEventHandler<OrderStockRejectedIntegrationEvent>>();
+            eventBus.Subscribe<OrderPaymentFailedIntegrationEvent, IIntegrationEventHandler<OrderPaymentFailedIntegrationEvent>>();
+            eventBus.Subscribe<OrderPaymentSuccededIntegrationEvent, IIntegrationEventHandler<OrderPaymentSuccededIntegrationEvent>>();
         }
 
         protected virtual void ConfigureAuth(IApplicationBuilder app)

src/Services/Ordering/Ordering.Domain/AggregatesModel/OrderAggregate/Address.cs

@@ -17,6 +17,8 @@ namespace Microsoft.eShopOnContainers.Services.Ordering.Domain.AggregatesModel.O
 
         public String ZipCode { get; private set; }
 
+        private Address() { }
+
         public Address(string street, string city, string state, string country, string zipcode)
         {
             Street = street;

src/Services/Ordering/Ordering.Domain/AggregatesModel/OrderAggregate/IOrderRepository.cs

@@ -13,7 +13,5 @@ namespace Microsoft.eShopOnContainers.Services.Ordering.Domain.AggregatesModel.O
         void Update(Order order);
 
         Task<Order> GetAsync(int orderId);
-
-        Task<Order> GetWithDependenciesAsync(int orderId);
     }
 }

src/Services/Ordering/Ordering.Domain/AggregatesModel/OrderAggregate/Order.cs

@@ -94,14 +94,12 @@ namespace Microsoft.eShopOnContainers.Services.Ordering.Domain.AggregatesModel.O
             _buyerId = id;
         }
 
-        #region Status Changes
-
         public void SetAwaitingValidationStatus()
         {
-            if (_orderStatusId != OrderStatus.Submited.Id &&
-                _orderStatusId != OrderStatus.Cancelled.Id)
+            if (_orderStatusId == OrderStatus.Cancelled.Id ||
+                _orderStatusId != OrderStatus.Submited.Id)
             {
-                StatusChangeException();
+                StatusChangeException(OrderStatus.AwaitingValidation);
             }  
 
             AddDomainEvent(new OrderStatusChangedToAwaitingValidationDomainEvent(Id, _orderItems));
@@ -109,38 +107,24 @@ namespace Microsoft.eShopOnContainers.Services.Ordering.Domain.AggregatesModel.O
             _orderStatusId = OrderStatus.AwaitingValidation.Id;
         }
 
-        public void SetStockConfirmedStatus(IEnumerable<int> orderStockNotConfirmedItems = null)
+        public void SetStockConfirmedStatus()
         {
             if (_orderStatusId != OrderStatus.AwaitingValidation.Id)
             {
-                StatusChangeException();
+                StatusChangeException(OrderStatus.StockConfirmed);
             }
 
-            if (orderStockNotConfirmedItems is null)
-            {
-                AddDomainEvent(new OrderStatusChangedToStockConfirmedDomainEvent(Id));
+            AddDomainEvent(new OrderStatusChangedToStockConfirmedDomainEvent(Id));
 
-                _orderStatusId = OrderStatus.StockConfirmed.Id;
-                _description = "All the items were confirmed with available stock.";
-            }
-            else
-            {
-                _orderStatusId = OrderStatus.Cancelled.Id;
-
-                var itemsStockNotConfirmedProductNames = OrderItems
-                    .Where(c => orderStockNotConfirmedItems.Contains(c.ProductId))
-                    .Select(c => c.GetOrderItemProductName());
-
-                var itemsStockNotConfirmedDescription = string.Join(", ", itemsStockNotConfirmedProductNames);
-                _description = $"The product items don't have stock: ({itemsStockNotConfirmedDescription}).";   
-            }
+            _orderStatusId = OrderStatus.StockConfirmed.Id;
+            _description = "All the items were confirmed with available stock.";
         }
 
         public void SetPaidStatus()
         {
             if (_orderStatusId != OrderStatus.StockConfirmed.Id)
             {
-                StatusChangeException();
+                StatusChangeException(OrderStatus.Paid);
             }
 
             AddDomainEvent(new OrderStatusChangedToPaidDomainEvent(Id, OrderItems));
@@ -153,40 +137,41 @@ namespace Microsoft.eShopOnContainers.Services.Ordering.Domain.AggregatesModel.O
         {
             if (_orderStatusId != OrderStatus.Paid.Id)
             {
-                StatusChangeException();
+                StatusChangeException(OrderStatus.Shipped);
             }
 
             _orderStatusId = OrderStatus.Shipped.Id;
-            _description = "";
+            _description = "The order was shipped.";
         }
 
         public void SetCancelledStatus()
         {
-            if (_orderStatusId == OrderStatus.Submited.Id)
+            if (_orderStatusId == OrderStatus.Paid.Id ||
+                _orderStatusId == OrderStatus.Shipped.Id)
             {
-                _description = "The order was cancelled before the grace period was confirmed.";
-            }
-            else if (_orderStatusId == OrderStatus.AwaitingValidation.Id)
-            {
-                _description = "The order was cancelled before to check the order stock items.";
-            }
-            else if (_orderStatusId == OrderStatus.StockConfirmed.Id)
-            {
-                _description = "The order was cancelled before to pay the order.";
-            }
-            else if (_orderStatusId == OrderStatus.Paid.Id)
-            {
-                _description = "The order was cancelled before to ship the order.";
-            }
-            else if(_orderStatusId == OrderStatus.Shipped.Id)
-            {
-                throw new OrderingDomainException("Not possible to change order status. Reason: cannot cancel order it is already shipped.");
+                StatusChangeException(OrderStatus.Cancelled);
             }
 
             _orderStatusId = OrderStatus.Cancelled.Id;
+            _description = $"The order was cancelled.";
         }
 
-        #endregion
+        public void SetCancelledStatusWhenStockIsRejected(IEnumerable<int> orderStockRejectedItems)
+        {
+            if (_orderStatusId != OrderStatus.AwaitingValidation.Id)
+            {
+                StatusChangeException(OrderStatus.Cancelled);
+            }
+
+            _orderStatusId = OrderStatus.Cancelled.Id;
+
+            var itemsStockRejectedProductNames = OrderItems
+                .Where(c => orderStockRejectedItems.Contains(c.ProductId))
+                .Select(c => c.GetOrderItemProductName());
+
+            var itemsStockRejectedDescription = string.Join(", ", itemsStockRejectedProductNames);
+            _description = $"The product items don't have stock: ({itemsStockRejectedDescription}).";
+        }
 
         private void AddOrderStartedDomainEvent(string userId, int cardTypeId, string cardNumber,
                 string cardSecurityNumber, string cardHolderName, DateTime cardExpiration)
@@ -198,9 +183,9 @@ namespace Microsoft.eShopOnContainers.Services.Ordering.Domain.AggregatesModel.O
             this.AddDomainEvent(orderStartedDomainEvent);
         }
 
-        private void StatusChangeException()
+        private void StatusChangeException(OrderStatus orderStatusToChange)
         {
-            throw new OrderingDomainException("Not able to process order event. Reason: no valid order status change");
+            throw new OrderingDomainException($"Not possible to change order status from {OrderStatus.Name} to {orderStatusToChange.Name}.");
         }
     }
 }

src/Services/Ordering/Ordering.Infrastructure/Repositories/OrderRepository.cs

@@ -33,15 +33,18 @@ namespace Microsoft.eShopOnContainers.Services.Ordering.Infrastructure.Repositor
 
         public async Task<Order> GetAsync(int orderId)
         {
-            return await _context.Orders.FindAsync(orderId);
-        }
+            var order = await _context.Orders.FindAsync(orderId);
+            if (order != null)
+            {
+                await _context.Entry(order)
+                    .Collection(i => i.OrderItems).LoadAsync();
+                await _context.Entry(order)
+                    .Reference(i => i.OrderStatus).LoadAsync();
+                await _context.Entry(order)
+                    .Reference(i => i.Address).LoadAsync();
+            }
 
-        public async Task<Order> GetWithDependenciesAsync(int orderId)
-        {
-            return await _context.Orders
-                .Include(c => c.OrderStatus)
-                .Include(c => c.OrderItems)
-                .SingleAsync(c => c.Id == orderId);
+            return order;
         }
 
         public void Update(Order order)

src/Services/Payment/Payment.API/IntegrationCommands/CommandHandlers/PayOrderCommandHandler.cs

@@ -1,27 +0,0 @@
-namespace Payment.API.IntegrationCommands.CommandHandlers
-{
-    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Abstractions;
-    using Payment.API.IntegrationCommands.Commands;
-    using System.Threading.Tasks;
-    using Payment.API.IntegrationEvents;
-    using Payment.API.IntegrationEvents.Events;
-
-    public class PayOrderCommandHandler : IIntegrationEventHandler<PayOrderCommand>
-    {
-        private readonly IPaymentIntegrationEventService _paymentIntegrationEventService;
-
-        public PayOrderCommandHandler(IPaymentIntegrationEventService paymentIntegrationEventService)
-            => _paymentIntegrationEventService = paymentIntegrationEventService;
-
-        public async Task Handle(PayOrderCommand @event)
-        {
-            //PAYMENT SUCCESSED
-            var orderPaymentSuccededIntegrationEvent = new OrderPaymentSuccededIntegrationEvent(@event.OrderId);
-            _paymentIntegrationEventService.PublishThroughEventBus(orderPaymentSuccededIntegrationEvent);
-
-            //PAYMENT FAILED
-            //var orderPaymentFailedIntegrationEvent = new OrderPaymentFailedIntegrationEvent(@event.OrderId);
-            //_paymentIntegrationEventService.PublishThroughEventBus(orderPaymentFailedIntegrationEvent);
-        }
-    }
-}

src/Services/Payment/Payment.API/IntegrationCommands/Commands/PayOrderCommand.cs

@@ -1,11 +0,0 @@
-namespace Payment.API.IntegrationCommands.Commands
-{
-    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
-
-    public class PayOrderCommand : IntegrationEvent
-    {
-        public int OrderId { get; }
-
-        public PayOrderCommand(int orderId) => OrderId = orderId;
-    }
-}

src/Services/Payment/Payment.API/IntegrationEvents/EventHandling/OrderStatusChangedToStockConfirmedIntegrationEventHandler.cs

@@ -0,0 +1,37 @@
+namespace Payment.API.IntegrationEvents.EventHandling
+{
+    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Abstractions;
+    using System.Threading.Tasks;
+    using Payment.API.IntegrationEvents.Events;
+    using Microsoft.Extensions.Options;
+    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
+
+    public class OrderStatusChangedToStockConfirmedIntegrationEventHandler : 
+        IIntegrationEventHandler<OrderStatusChangedToStockConfirmedIntegrationEvent>
+    {
+        private readonly IEventBus _eventBus;
+        private readonly PaymentSettings _settings;
+
+        public OrderStatusChangedToStockConfirmedIntegrationEventHandler(IEventBus eventBus, 
+            IOptionsSnapshot<PaymentSettings> settings)
+        {
+            _eventBus = eventBus;
+            _settings = settings.Value;
+        }         
+
+        public async Task Handle(OrderStatusChangedToStockConfirmedIntegrationEvent @event)
+        {
+            IntegrationEvent orderPaymentIntegrationEvent;
+            if(_settings.SuccessPayment)
+            {
+                orderPaymentIntegrationEvent = new OrderPaymentSuccededIntegrationEvent(@event.OrderId);
+            }
+            else
+            {
+                orderPaymentIntegrationEvent = new OrderPaymentFailedIntegrationEvent(@event.OrderId);
+            }
+
+            _eventBus.Publish(orderPaymentIntegrationEvent);
+        }
+    }
+}

src/Services/Payment/Payment.API/IntegrationEvents/Events/OrderStatusChangedToStockConfirmedIntegrationEvent.cs

@@ -0,0 +1,12 @@
+namespace Payment.API.IntegrationEvents.Events
+{
+    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
+
+    public class OrderStatusChangedToStockConfirmedIntegrationEvent : IntegrationEvent
+    {
+        public int OrderId { get; }
+
+        public OrderStatusChangedToStockConfirmedIntegrationEvent(int orderId)
+            => OrderId = orderId;
+    }
+}

src/Services/Payment/Payment.API/IntegrationEvents/IPaymentIntegrationEventService.cs

@@ -1,9 +0,0 @@
-namespace Payment.API.IntegrationEvents
-{
-    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
-
-    public interface IPaymentIntegrationEventService
-    {
-        void PublishThroughEventBus(IntegrationEvent evt);
-    }
-}

src/Services/Payment/Payment.API/IntegrationEvents/PaymentIntegrationEventService.cs

@@ -1,21 +0,0 @@
-namespace Payment.API.IntegrationEvents
-{ 
-    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Abstractions;
-    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
-    using System;
-
-    public class PaymentIntegrationEventService : IPaymentIntegrationEventService
-    {
-        private readonly IEventBus _eventBus;
-
-        public PaymentIntegrationEventService(IEventBus eventBus)
-        {
-            _eventBus = eventBus ?? throw new ArgumentNullException(nameof(eventBus));
-        }
-
-        public void PublishThroughEventBus(IntegrationEvent evt)
-        {
-            _eventBus.Publish(evt); ;
-        }
-    }
-}

src/Services/Payment/Payment.API/PaymentSettings.cs

@@ -0,0 +1,8 @@
+namespace Payment.API
+{
+    public class PaymentSettings
+    {
+        public bool SuccessPayment { get; set; }
+        public string EventBusConnection { get; set; }
+    }
+}

src/Services/Payment/Payment.API/Startup.cs

@@ -7,12 +7,11 @@ using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using System;
 using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Abstractions;
-using Payment.API.IntegrationCommands.Commands;
 using Microsoft.eShopOnContainers.BuildingBlocks.EventBusRabbitMQ;
 using RabbitMQ.Client;
 using Microsoft.eShopOnContainers.BuildingBlocks.EventBus;
-using Payment.API.IntegrationEvents;
-using Payment.API.IntegrationCommands.CommandHandlers;
+using Payment.API.IntegrationEvents.Events;
+using Payment.API.IntegrationEvents.EventHandling;
 
 namespace Payment.API
 {
@@ -35,8 +34,7 @@ namespace Payment.API
         {
             // Add framework services.
             services.AddMvc();
-
-            services.AddTransient<IPaymentIntegrationEventService, PaymentIntegrationEventService>();
+            services.Configure<PaymentSettings>(Configuration);
             services.AddSingleton<IRabbitMQPersistentConnection>(sp =>
             {
                 var logger = sp.GetRequiredService<ILogger<DefaultRabbitMQPersistentConnection>>();
@@ -88,13 +86,15 @@ namespace Payment.API
             services.AddSingleton<IEventBus, EventBusRabbitMQ>();
             services.AddSingleton<IEventBusSubscriptionsManager, InMemoryEventBusSubscriptionsManager>();
 
-            services.AddTransient<IIntegrationEventHandler<PayOrderCommand>, PayOrderCommandHandler>();
+            services.AddTransient<IIntegrationEventHandler<OrderStatusChangedToStockConfirmedIntegrationEvent>, 
+                OrderStatusChangedToStockConfirmedIntegrationEventHandler>();
         }
 
         private void ConfigureEventBus(IApplicationBuilder app)
         {
             var eventBus = app.ApplicationServices.GetRequiredService<IEventBus>();
-            eventBus.Subscribe<PayOrderCommand, IIntegrationEventHandler<PayOrderCommand>>();
+            eventBus.Subscribe<OrderStatusChangedToStockConfirmedIntegrationEvent, 
+                IIntegrationEventHandler<OrderStatusChangedToStockConfirmedIntegrationEvent>>();
         }
     }
-}
+}

src/Services/Payment/Payment.API/appsettings.json

@@ -4,5 +4,6 @@
     "LogLevel": {
       "Default": "Warning"
     }
-  }
+  },
+  "SuccessPayment": "true"
 }

src/Services/SagaManager/SagaManager/IntegrationEvents/Events/GracePeriodConfirmedIntegrationEvent.cs

@@ -2,10 +2,10 @@
 {
     using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
 
-    public class ConfirmGracePeriodCommand : IntegrationEvent
+    public class GracePeriodConfirmedIntegrationEvent : IntegrationEvent
     {
         public int OrderId { get;}
 
-        public ConfirmGracePeriodCommand(int orderId) => OrderId = orderId;
+        public GracePeriodConfirmedIntegrationEvent(int orderId) => OrderId = orderId;
     }
 }

src/Services/SagaManager/SagaManager/IntegrationEvents/ISagaManagerIntegrationEventService.cs

@@ -1,9 +0,0 @@
-namespace SagaManager.IntegrationEvents
-{
-    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
-
-    public interface ISagaManagerIntegrationEventService
-    {
-        void PublishThroughEventBus(IntegrationEvent evt);
-    }
-}

src/Services/SagaManager/SagaManager/IntegrationEvents/SagaManagerIntegrationEventService.cs

@@ -1,17 +0,0 @@
-namespace SagaManager.IntegrationEvents
-{
-    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Abstractions;
-    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
-    using System;
-
-    public class SagaManagerIntegrationEventService : ISagaManagerIntegrationEventService
-    {
-        private readonly IEventBus _eventBus;
-
-        public SagaManagerIntegrationEventService(IEventBus eventBus)
-            => _eventBus = eventBus ?? throw new ArgumentNullException(nameof(eventBus));
-
-
-        public void PublishThroughEventBus(IntegrationEvent evt) => _eventBus.Publish(evt);
-    }
-}

src/Services/SagaManager/SagaManager/Program.cs

@@ -14,7 +14,6 @@
     using Microsoft.Extensions.Options;
     using RabbitMQ.Client;
     using Services;
-    using IntegrationEvents;
 
     public class Program
     {
@@ -34,11 +33,13 @@
 
             var sagaManagerService = serviceProvider
                 .GetRequiredService<ISagaManagerService>();
+            var checkUpdateTime = serviceProvider
+                .GetRequiredService<IOptions<SagaManagerSettings>>().Value.CheckUpdateTime;
 
             while (true)
             {
                 sagaManagerService.CheckConfirmedGracePeriodOrders();
-                await Task.Delay(90000);
+                await Task.Delay(checkUpdateTime);
             }
         }
 
@@ -58,8 +59,6 @@
                 .AddOptions()
                 .Configure<SagaManagerSettings>(Configuration)
                 .AddSingleton<ISagaManagerService, SagaManagerService>()
-                .AddSingleton<ISagaManagerIntegrationEventService, SagaManagerIntegrationEventService>()
-
                 .AddSingleton<IRabbitMQPersistentConnection>(sp =>
                 {
                     var settings = sp.GetRequiredService<IOptions<SagaManagerSettings>>().Value;

src/Services/SagaManager/SagaManager/SagaManagerSettings.cs

@@ -6,6 +6,8 @@
 
         public string EventBusConnection { get; set; }
 
-        public int GracePeriod { get; set; }
+        public int GracePeriodTime { get; set; }
+
+        public int CheckUpdateTime { get; set; }
     }
 }

src/Services/SagaManager/SagaManager/Services/SagaManagerService.cs

@@ -5,21 +5,21 @@
     using Microsoft.Extensions.Options;
     using Microsoft.Extensions.Logging;
     using Dapper;
-    using IntegrationEvents;
     using IntegrationEvents.Events;
+    using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Abstractions;
 
     public class SagaManagerService : ISagaManagerService
     {
         private readonly SagaManagerSettings _settings;
-        private readonly ISagaManagerIntegrationEventService _sagaManagerIntegrationEventService;
+        private readonly IEventBus _eventBus;
         private readonly ILogger<SagaManagerService> _logger;
 
         public SagaManagerService(IOptions<SagaManagerSettings> settings,
-            ISagaManagerIntegrationEventService sagaManagerIntegrationEventService,
+            IEventBus eventBus,
             ILogger<SagaManagerService> logger)
         {
             _settings = settings.Value;
-            _sagaManagerIntegrationEventService = sagaManagerIntegrationEventService;
+            _eventBus = eventBus;
             _logger = logger;
         }
 
@@ -29,8 +29,8 @@
 
             foreach (var orderId in orderIds)
             {
-                var confirmGracePeriodEvent = new ConfirmGracePeriodCommand(orderId);
-                _sagaManagerIntegrationEventService.PublishThroughEventBus(confirmGracePeriodEvent);
+                var confirmGracePeriodEvent = new GracePeriodConfirmedIntegrationEvent(orderId);
+                _eventBus.Publish(confirmGracePeriodEvent);
             }
         }
 
@@ -45,9 +45,9 @@
                     conn.Open();
                     orderIds = conn.Query<int>(
                         @"SELECT Id FROM [Microsoft.eShopOnContainers.Services.OrderingDb].[ordering].[orders] 
-                            WHERE DATEDIFF(hour, [OrderDate], GETDATE()) >= @GracePeriod
+                            WHERE DATEDIFF(hour, [OrderDate], GETDATE()) >= @GracePeriodTime
                             AND [OrderStatusId] = 1",
-                        new { GracePeriod = _settings.GracePeriod });  
+                        new { GracePeriodTime = _settings.GracePeriodTime });  
                 }
                 catch (SqlException exception)
                 {

src/Services/SagaManager/SagaManager/appsettings.json

@@ -7,5 +7,7 @@
       "Microsoft": "Information"
     }
   },
-  "ConnectionString": "Server=tcp:127.0.0.1,5433;Database=Microsoft.eShopOnContainers.Services.OrderingDb;User Id=sa;Password=Pass@word;"
+  "ConnectionString": "Server=tcp:127.0.0.1,5433;Database=Microsoft.eShopOnContainers.Services.OrderingDb;User Id=sa;Password=Pass@word;",
+  "GracePeriodTime": "15",
+  "CheckUpdateTime": "30000"
 }

src/Web/WebMVC/Views/Order/Index.cshtml

@@ -31,9 +31,9 @@
                     <a class="esh-orders-link" asp-controller="Order" asp-action="Detail" asp-route-orderId="@item.OrderNumber">Detail</a>
                 </section>
                 <section class="esh-orders-item col-xs-1">
-                    @if ((item.Status.ToLower() != "shipped") && (item.Status.ToLower() != "cancelled"))
+                    @if (item.Status.ToLower() == "submited")
                     {
-                        <a class="esh-orders-link" asp-controller="Order" asp-action="Cancel" asp-route-orderId="@item.OrderNumber">Cancel</a>
+                        <a class="esh-orders-link" asp-controller="Order" asp-action="cancel" asp-route-orderId="@item.OrderNumber">Cancel</a>
                     }                    
                 </section>
             </article>