Add logging to CreateOrderCommandHandler

Author: mvelosop

src/Services/Ordering/Ordering.API/Application/Commands/CreateOrderCommandHandler.cs

@@ -6,6 +6,7 @@
     using MediatR;
     using Microsoft.eShopOnContainers.Services.Ordering.API.Infrastructure.Services;
     using Microsoft.eShopOnContainers.Services.Ordering.Infrastructure.Idempotency;
+    using Microsoft.Extensions.Logging;
     using System;
     using System.Threading;
     using System.Threading.Tasks;
@@ -18,17 +19,20 @@ public class CreateOrderCommandHandler
         private readonly IIdentityService _identityService;
         private readonly IMediator _mediator;
         private readonly IOrderingIntegrationEventService _orderingIntegrationEventService;
+        private readonly ILogger<CreateOrderCommandHandler> _logger;
 
         // Using DI to inject infrastructure persistence Repositories
         public CreateOrderCommandHandler(IMediator mediator,
             IOrderingIntegrationEventService orderingIntegrationEventService,
             IOrderRepository orderRepository, 
-            IIdentityService identityService)
+            IIdentityService identityService,
+            ILogger<CreateOrderCommandHandler> logger)
         {
             _orderRepository = orderRepository ?? throw new ArgumentNullException(nameof(orderRepository));
             _identityService = identityService ?? throw new ArgumentNullException(nameof(identityService));
             _mediator = mediator ?? throw new ArgumentNullException(nameof(mediator));
             _orderingIntegrationEventService = orderingIntegrationEventService ?? throw new ArgumentNullException(nameof(orderingIntegrationEventService));
+            _logger = logger ?? throw new ArgumentNullException(nameof(logger));
         }
 
         public async Task<bool> Handle(CreateOrderCommand message, CancellationToken cancellationToken)
@@ -49,6 +53,8 @@ public async Task<bool> Handle(CreateOrderCommand message, CancellationToken can
                 order.AddOrderItem(item.ProductId, item.ProductName, item.UnitPrice, item.Discount, item.PictureUrl, item.Units);
             }
 
+            _logger.LogInformation("----- Creating Order - Order: {@Order}", order);
+
              _orderRepository.Add(order);
 
             return await _orderRepository.UnitOfWork

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

@@ -6,6 +6,7 @@
 using Microsoft.eShopOnContainers.BuildingBlocks.IntegrationEventLogEF.Services;
 using Microsoft.eShopOnContainers.BuildingBlocks.IntegrationEventLogEF.Utilities;
 using Microsoft.eShopOnContainers.Services.Ordering.Infrastructure;
+using Microsoft.Extensions.Logging;
 using System;
 using System.Data.Common;
 using System.Diagnostics;
@@ -21,24 +22,30 @@ public class OrderingIntegrationEventService : IOrderingIntegrationEventService
         private readonly OrderingContext _orderingContext;
         private readonly IntegrationEventLogContext _eventLogContext;
         private readonly IIntegrationEventLogService _eventLogService;
+        private readonly ILogger<OrderingIntegrationEventService> _logger;
 
         public OrderingIntegrationEventService(IEventBus eventBus,
             OrderingContext orderingContext,
             IntegrationEventLogContext eventLogContext,
-            Func<DbConnection, IIntegrationEventLogService> integrationEventLogServiceFactory)
+            Func<DbConnection, IIntegrationEventLogService> integrationEventLogServiceFactory,
+            ILogger<OrderingIntegrationEventService> logger)
         {
             _orderingContext = orderingContext ?? throw new ArgumentNullException(nameof(orderingContext));
             _eventLogContext = eventLogContext ?? throw new ArgumentNullException(nameof(eventLogContext));
             _integrationEventLogServiceFactory = integrationEventLogServiceFactory ?? throw new ArgumentNullException(nameof(integrationEventLogServiceFactory));
             _eventBus = eventBus ?? throw new ArgumentNullException(nameof(eventBus));
             _eventLogService = _integrationEventLogServiceFactory(_orderingContext.Database.GetDbConnection());
+            _logger = logger ?? throw new ArgumentNullException(nameof(logger));
         }
 
         public async Task PublishEventsThroughEventBusAsync()
         {
             var pendindLogEvents = await _eventLogService.RetrieveEventLogsPendingToPublishAsync();
+
             foreach (var logEvt in pendindLogEvents)
             {
+                _logger.LogInformation("----- Publishing integration event {IntegrationEventId} ({@IntegrationEvent})", logEvt.EventId, logEvt);
+
                 try
                 {
                     await _eventLogService.MarkEventAsInProgressAsync(logEvt.EventId);
@@ -54,6 +61,8 @@ public async Task PublishEventsThroughEventBusAsync()
 
         public async Task AddAndSaveEventAsync(IntegrationEvent evt)
         {
+            _logger.LogInformation("----- Saving integration event {IntegrationEventId} to repository ({@IntegrationEvent})", evt.Id, evt);
+
             await _eventLogService.SaveEventAsync(evt, _orderingContext.GetCurrentTransaction.GetDbTransaction());
         }
     }

src/Services/Ordering/Ordering.API/Infrastructure/AutofacModules/MediatorModule.cs

@@ -7,7 +7,6 @@
 using Ordering.API.Application.Behaviors;
 using Ordering.API.Application.DomainEventHandlers.OrderStartedEvent;
 using Ordering.API.Application.Validations;
-using Ordering.API.Infrastructure.Behaviors;
 
 namespace Microsoft.eShopOnContainers.Services.Ordering.API.Infrastructure.AutofacModules
 {