Merge from Dev

_docker/rabbitmq/Dockerfile.nanowin

@@ -0,0 +1,29 @@
+#https://github.com/spring2/dockerfiles/tree/master/rabbitmq
+
+FROM microsoft/windowsservercore
+
+SHELL ["powershell", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPreference = 'SilentlyContinue';"]
+ 
+ENV chocolateyUseWindowsCompression false
+
+RUN iex ((new-object net.webclient).DownloadString('https://chocolatey.org/install.ps1')); \
+    choco install -y curl;
+
+RUN choco install -y erlang
+ENV ERLANG_SERVICE_MANAGER_PATH="C:\Program Files\erl8.2\erts-8.2\bin"
+RUN choco install -y rabbitmq
+ENV RABBITMQ_SERVER="C:\Program Files\RabbitMQ Server\rabbitmq_server-3.6.5"
+
+ENV RABBITMQ_CONFIG_FILE="c:\rabbitmq"
+COPY rabbitmq.config C:/
+COPY rabbitmq.config C:/Users/ContainerAdministrator/AppData/Roaming/RabbitMQ/
+COPY enabled_plugins C:/Users/ContainerAdministrator/AppData/Roaming/RabbitMQ/
+
+
+EXPOSE 4369
+EXPOSE 5672
+EXPOSE 5671
+EXPOSE 15672
+
+WORKDIR C:/Program\ Files/RabbitMQ\ Server/rabbitmq_server-3.6.5/sbin
+CMD .\rabbitmq-server.bat

_docker/rabbitmq/enabled_plugins

@@ -0,0 +1 @@
+[rabbitmq_amqp1_0,rabbitmq_management].

_docker/rabbitmq/rabbitmq.config

@@ -0,0 +1 @@
+[{rabbit, [{loopback_users, []}]}].

docker-compose-windows.override.yml

@@ -0,0 +1,79 @@
+version: '2.1'
+
+# The default docker-compose.override file can use the "localhost" as the external name for testing web apps within the same dev machine. 
+# The ESHOP_EXTERNAL_DNS_NAME_OR_IP environment variable is taken, by default, from the ".env" file defined like: 
+#     ESHOP_EXTERNAL_DNS_NAME_OR_IP=localhost
+# but values present in the environment vars at runtime will always override those defined inside the .env file
+# An external IP or DNS name has to be used (instead localhost and the 10.0.75.1 IP) when testing the Web apps and the Xamarin apps from remote machines/devices using the same WiFi, for instance.
+
+services:
+
+  basket.api:
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Development
+      - ASPNETCORE_URLS=http://0.0.0.0:5103
+      - ConnectionString=basket.data
+      - identityUrl=http://identity.api:5105              #Local: You need to open your local dev-machine firewall at range 5100-5105.  at range 5100-5105. 
+      - EventBusConnection=rabbitmq
+    ports:
+      - "5103:5103"
+
+  catalog.api:
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Development
+      - ASPNETCORE_URLS=http://0.0.0.0:5101
+      - ConnectionString=Server=sql.data;Database=Microsoft.eShopOnContainers.Services.CatalogDb;User Id=sa;Password=Pass@word
+      - ExternalCatalogBaseUrl=http://${ESHOP_EXTERNAL_DNS_NAME_OR_IP}:5101    #Local: You need to open your local dev-machine firewall at range 5100-5105.  at range 5100-5105.	  
+      - EventBusConnection=rabbitmq
+    ports:
+      - "5101:5101"
+
+  identity.api:
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Development
+      - ASPNETCORE_URLS=http://0.0.0.0:5105
+      - SpaClient=http://${ESHOP_EXTERNAL_DNS_NAME_OR_IP}:5104
+      - ConnectionStrings__DefaultConnection=Server=sql.data;Database=Microsoft.eShopOnContainers.Service.IdentityDb;User Id=sa;Password=Pass@word 
+      - MvcClient=http://${ESHOP_EXTERNAL_DNS_NAME_OR_IP}:5100              #Local: You need to open your local dev-machine firewall at range 5100-5105.  
+    ports:
+      - "5105:5105"
+
+  ordering.api:
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Development
+      - ASPNETCORE_URLS=http://0.0.0.0:5102
+      - ConnectionString=Server=sql.data;Database=Microsoft.eShopOnContainers.Services.OrderingDb;User Id=sa;Password=Pass@word
+      - identityUrl=http://identity.api:5105              #Local: You need to open your local dev-machine firewall at range 5100-5105.  at range 5100-5105. 
+      - EventBusConnection=rabbitmq
+    ports:
+      - "5102:5102"
+
+  webspa:
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Development
+      - ASPNETCORE_URLS=http://0.0.0.0:5104
+      - CatalogUrl=http://${ESHOP_EXTERNAL_DNS_NAME_OR_IP}:5101
+      - OrderingUrl=http://${ESHOP_EXTERNAL_DNS_NAME_OR_IP}:5102
+      - IdentityUrl=http://${ESHOP_EXTERNAL_DNS_NAME_OR_IP}:5105              #Local: You need to open your local dev-machine firewall at range 5100-5105.  at range 5100-5105. 
+      - BasketUrl=http://${ESHOP_EXTERNAL_DNS_NAME_OR_IP}:5103                
+    ports:
+      - "5104:5104"
+
+  webmvc:
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Development
+      - ASPNETCORE_URLS=http://0.0.0.0:5100
+      - CatalogUrl=http://catalog.api:5101
+      - OrderingUrl=http://ordering.api:5102
+      - BasketUrl=http://basket.api:5103
+      - IdentityUrl=http://10.0.75.1:5105        #Local:  Use 10.0.75.1 in a "Docker for Windows" environment, if using "localhost" from browser. 
+                                                 #Remote: Use ${ESHOP_EXTERNAL_DNS_NAME_OR_IP} if using external IP or DNS name from browser. 
+    ports:
+      - "5100:5100"
+
+  sql.data:
+    environment:
+      - SA_PASSWORD=Pass@word
+      - ACCEPT_EULA=Y
+    ports:
+      - "5433:1433"

docker-compose-windows.prod.yml

@@ -0,0 +1,80 @@
+version: '2.1'
+
+# The Production docker-compose file has to have the external/real IPs or DNS names for the services 
+# The ESHOP_PROD_EXTERNAL_DNS_NAME_OR_IP environment variable is taken, by default, from the ".env" file defined like: 
+#     ESHOP_PROD_EXTERNAL_DNS_NAME_OR_IP=192.168.88.248
+# but values present in the environment vars at runtime will always override those defined inside the .env file
+# An external IP or DNS name has to be used when testing the Web apps and the Xamarin apps from remote machines/devices using the same WiFi, for instance.
+#
+# Set ASPNETCORE_ENVIRONMENT=Development to get errors while testing. 
+#
+# You need to start it with the following CLI command:
+# docker-compose -f docker-compose-windows.yml -f docker-compose-windows.prod.yml up -d
+
+services:
+
+  basket.api:
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Production
+      - ASPNETCORE_URLS=http://0.0.0.0:5103
+      - ConnectionString=basket.data
+      - identityUrl=http://identity.api:5105              #Local: You need to open your host's firewall at range 5100-5105.  at range 5100-5105. 
+    ports:
+      - "5103:5103"
+
+  catalog.api:
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Production
+      - ASPNETCORE_URLS=http://0.0.0.0:5101
+      - ConnectionString=Server=sql.data;Database=Microsoft.eShopOnContainers.Services.CatalogDb;User Id=sa;Password=Pass@word
+      - ExternalCatalogBaseUrl=http://${ESHOP_PROD_EXTERNAL_DNS_NAME_OR_IP}:5101    #Local: You need to open your host's firewall at range 5100-5105.  at range 5100-5105.
+    ports:
+      - "5101:5101"
+
+  identity.api:
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Production
+      - ASPNETCORE_URLS=http://0.0.0.0:5105
+      - SpaClient=http://${ESHOP_PROD_EXTERNAL_DNS_NAME_OR_IP}:5104
+      - ConnectionStrings__DefaultConnection=Server=sql.data;Database=Microsoft.eShopOnContainers.Service.IdentityDb;User Id=sa;Password=Pass@word 
+      - MvcClient=http://${ESHOP_PROD_EXTERNAL_DNS_NAME_OR_IP}:5100              #Local: You need to open your host's firewall at range 5100-5105.  
+    ports:
+      - "5105:5105"
+
+  ordering.api:
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Production
+      - ASPNETCORE_URLS=http://0.0.0.0:5102
+      - ConnectionString=Server=sql.data;Database=Microsoft.eShopOnContainers.Services.OrderingDb;User Id=sa;Password=Pass@word
+      - identityUrl=http://identity.api:5105              #Local: You need to open your host's firewall at range 5100-5105.  at range 5100-5105. 
+    ports:
+      - "5102:5102"
+
+  webspa:
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Production
+      - ASPNETCORE_URLS=http://0.0.0.0:5104
+      - CatalogUrl=http://${ESHOP_PROD_EXTERNAL_DNS_NAME_OR_IP}:5101
+      - OrderingUrl=http://${ESHOP_PROD_EXTERNAL_DNS_NAME_OR_IP}:5102
+      - IdentityUrl=http://${ESHOP_PROD_EXTERNAL_DNS_NAME_OR_IP}:5105              #Local: You need to open your host's firewall at range 5100-5105.  at range 5100-5105. 
+      - BasketUrl=http://${ESHOP_PROD_EXTERNAL_DNS_NAME_OR_IP}:5103                
+    ports:
+      - "5104:5104"
+
+  webmvc:
+    environment:
+      - ASPNETCORE_ENVIRONMENT=Production
+      - ASPNETCORE_URLS=http://0.0.0.0:5100
+      - CatalogUrl=http://catalog.api:5101
+      - OrderingUrl=http://ordering.api:5102
+      - IdentityUrl=http://${ESHOP_PROD_EXTERNAL_DNS_NAME_OR_IP}:5105     #Local: Use ${ESHOP_PROD_EXTERNAL_DNS_NAME_OR_IP}, if using external IP or DNS name from browser.          
+      - BasketUrl=http://basket.api:5103
+    ports:
+      - "5100:5100"
+
+  sql.data:
+    environment:
+      - SA_PASSWORD=Pass@word
+      - ACCEPT_EULA=Y
+    ports:
+      - "5433:1433"

docker-compose-windows.yml

@@ -0,0 +1,80 @@
+version: '2.1'
+
+services:
+  basket.api:
+    image: eshop/basket.api
+    build:
+      context: ./src/Services/Basket/Basket.API
+      dockerfile: Dockerfile.nanowin
+    depends_on:
+      - basket.data
+      - identity.api
+
+  catalog.api:
+    image: eshop/catalog.api
+    build:
+      context: ./src/Services/Catalog/Catalog.API
+      dockerfile: Dockerfile.nanowin
+    depends_on:
+      - sql.data
+
+  identity.api:
+    image: eshop/identity.api
+    build:
+      context: ./src/Services/Identity/Identity.API
+      dockerfile: Dockerfile.nanowin
+    depends_on:
+      - sql.data
+
+  ordering.api:
+    image: eshop/ordering.api
+    build:
+      context: ./src/Services/Ordering/Ordering.API
+      dockerfile: Dockerfile.nanowin
+    depends_on:
+      - sql.data
+
+  webspa:
+    image: eshop/webspa
+    build:
+      context: ./src/Web/WebSPA
+      dockerfile: Dockerfile.nanowin
+    depends_on:
+      - identity.api
+      - basket.api
+
+  webmvc:
+    image: eshop/webmvc
+    build:
+      context: ./src/Web/WebMVC
+      dockerfile: Dockerfile.nanowin
+    depends_on:
+      - catalog.api
+      - ordering.api
+      - identity.api
+      - basket.api
+
+  sql.data:
+    image: microsoft/mssql-server-windows
+
+  basket.data:
+    image: redis
+    build:
+      context: ./_docker/redis
+      dockerfile: Dockerfile.nanowin
+    ports:
+        - "6379:6379"
+
+  rabbitmq:
+    image: rabbitmq
+    build:
+      context: ./_docker/rabbitmq
+      dockerfile: Dockerfile.nanowin  
+    ports:
+        - "5672:5672"
+  
+networks:
+  default:
+    external:
+      name: nat
+

docker-compose.prod.yml

@@ -8,7 +8,7 @@ version: '2'
 #
 # Set ASPNETCORE_ENVIRONMENT=Development to get errors while testing. 
 #
-# You need to start it with the following CLI command: 
+# You need to start it with the following CLI command:
 # docker-compose -f docker-compose.yml -f docker-compose.prod.yml up -d
 
 services:

src/BuildingBlocks/EventBus/IntegrationEventLogEF/Services/IIntegrationEventLogService.cs

@@ -1,14 +1,15 @@
 using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
 using System;
 using System.Collections.Generic;
+using System.Data.Common;
 using System.Linq;
 using System.Threading.Tasks;
 
-namespace Catalog.API.IntegrationEvents
+namespace Microsoft.eShopOnContainers.BuildingBlocks.IntegrationEventLogEF.Services
 {
     public interface IIntegrationEventLogService
     {
-        Task SaveEventAsync(IntegrationEvent @event);
+        Task SaveEventAsync(IntegrationEvent @event, DbTransaction transaction);
         Task MarkEventAsPublishedAsync(IntegrationEvent @event);
     }
 }

src/BuildingBlocks/EventBus/IntegrationEventLogEF/Services/IntegrationEventLogService.cs

@@ -1,37 +1,39 @@
-using System;
+using Microsoft.EntityFrameworkCore;
-using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage;
+using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
+using System.Data.Common;
 using System.Linq;
 using System.Threading.Tasks;
-using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
+using System;
-using Microsoft.eShopOnContainers.Services.Catalog.API.Infrastructure;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Storage;
-using Microsoft.eShopOnContainers.BuildingBlocks.IntegrationEventLogEF;
-using Microsoft.EntityFrameworkCore.Infrastructure;
 
-namespace Catalog.API.IntegrationEvents
+namespace Microsoft.eShopOnContainers.BuildingBlocks.IntegrationEventLogEF.Services
 {
     public class IntegrationEventLogService : IIntegrationEventLogService
     {
         private readonly IntegrationEventLogContext _integrationEventLogContext;
-        private readonly CatalogContext _catalogContext;
+        private readonly DbConnection _dbConnection;
 
-        public IntegrationEventLogService(CatalogContext catalogContext)
+        public IntegrationEventLogService(DbConnection dbConnection)
         {
-            _catalogContext = catalogContext;
+            _dbConnection = dbConnection?? throw new ArgumentNullException("dbConnection");
             _integrationEventLogContext = new IntegrationEventLogContext(
                 new DbContextOptionsBuilder<IntegrationEventLogContext>()
-                    .UseSqlServer(catalogContext.Database.GetDbConnection())
+                    .UseSqlServer(_dbConnection)
                     .ConfigureWarnings(warnings => warnings.Throw(RelationalEventId.QueryClientEvaluationWarning))
                     .Options);
         }
 
-        public Task SaveEventAsync(IntegrationEvent @event)
+        public Task SaveEventAsync(IntegrationEvent @event, DbTransaction transaction)
         {
+            if(transaction == null)
+            {
+                throw new ArgumentNullException("transaction", $"A {typeof(DbTransaction).FullName} is required as a pre-requisite to save the event.");
+            }
+            
             var eventLogEntry = new IntegrationEventLogEntry(@event);
             
-            // as a constraint this transaction has to be done together with a catalogContext transaction
+            _integrationEventLogContext.Database.UseTransaction(transaction);
-            _integrationEventLogContext.Database.UseTransaction(_catalogContext.Database.CurrentTransaction.GetDbTransaction());
             _integrationEventLogContext.IntegrationEventLogs.Add(eventLogEntry);
 
             return _integrationEventLogContext.SaveChangesAsync();

src/Services/Basket/Basket.API/Dockerfile.nanowin

@@ -1,4 +1,5 @@
 FROM microsoft/dotnet:1.1-runtime-nanoserver
+SHELL ["powershell"]
 ARG source
 WORKDIR /app
 RUN set-itemproperty -path 'HKLM:\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters' -Name ServerPriorityTimeLimit -Value 0 -Type DWord

src/Services/Basket/Basket.API/IntegrationEvents/EventHandling/ProductPriceChangedIntegrationEventHandler.cs

@@ -20,11 +20,11 @@ namespace Microsoft.eShopOnContainers.Services.Basket.API.IntegrationEvents.Even
             foreach (var id in userIds)
             {
                 var basket = await _repository.GetBasket(id);
-                await UpdateBasket(@event.ProductId, @event.NewPrice, basket);                      
+                await UpdatePriceInBasketItems(@event.ProductId, @event.NewPrice, basket);                      
             }
         }
 
-        private async Task UpdateBasket(int productId, decimal newPrice, CustomerBasket basket)
+        private async Task UpdatePriceInBasketItems(int productId, decimal newPrice, CustomerBasket basket)
         {
             var itemsToUpdate = basket?.Items?.Where(x => int.Parse(x.ProductId) == productId).ToList();
             if (itemsToUpdate != null)

src/Services/Catalog/Catalog.API/Controllers/CatalogController.cs

@@ -1,17 +1,20 @@
-using Catalog.API.IntegrationEvents;
+using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Storage;
+using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Abstractions;
-using Microsoft.eShopOnContainers.BuildingBlocks.IntegrationEventLogEF;
+using Microsoft.eShopOnContainers.BuildingBlocks.IntegrationEventLogEF.Services;
 using Microsoft.eShopOnContainers.Services.Catalog.API.Infrastructure;
 using Microsoft.eShopOnContainers.Services.Catalog.API.IntegrationEvents.Events;
 using Microsoft.eShopOnContainers.Services.Catalog.API.Model;
 using Microsoft.eShopOnContainers.Services.Catalog.API.ViewModel;
 using Microsoft.Extensions.Options;
+using System;
 using System.Collections.Generic;
+using System.Data.Common;
 using System.Linq;
 using System.Threading.Tasks;
+using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Events;
 
 namespace Microsoft.eShopOnContainers.Services.Catalog.API.Controllers
 {
@@ -21,14 +24,14 @@ namespace Microsoft.eShopOnContainers.Services.Catalog.API.Controllers
         private readonly CatalogContext _catalogContext;
         private readonly IOptionsSnapshot<Settings> _settings;
         private readonly IEventBus _eventBus;
-        private readonly IIntegrationEventLogService _integrationEventLogService;
+        private readonly Func<DbConnection, IIntegrationEventLogService> _integrationEventLogServiceFactory;
 
-        public CatalogController(CatalogContext Context, IOptionsSnapshot<Settings> settings, IEventBus eventBus, IIntegrationEventLogService integrationEventLogService)
+        public CatalogController(CatalogContext Context, IOptionsSnapshot<Settings> settings, IEventBus eventBus, Func<DbConnection, IIntegrationEventLogService> integrationEventLogServiceFactory)
         {
             _catalogContext = Context;
             _settings = settings;
             _eventBus = eventBus;
-            _integrationEventLogService = integrationEventLogService;
+            _integrationEventLogServiceFactory = integrationEventLogServiceFactory;
 
             ((DbContext)Context).ChangeTracker.QueryTrackingBehavior = QueryTrackingBehavior.NoTracking;
         }
@@ -135,38 +138,58 @@ namespace Microsoft.eShopOnContainers.Services.Catalog.API.Controllers
             return Ok(items);
         }
 
-        //POST api/v1/[controller]/edit
+        //POST api/v1/[controller]/update
-        [Route("edit")]
+        [Route("update")]
         [HttpPost]
-        public async Task<IActionResult> EditProduct([FromBody]CatalogItem product)
+        public async Task<IActionResult> UpdateProduct([FromBody]CatalogItem productToUpdate)
         {
-            var item = await _catalogContext.CatalogItems.SingleOrDefaultAsync(i => i.Id == product.Id);
+            var catalogItem = await _catalogContext.CatalogItems.SingleOrDefaultAsync(i => i.Id == productToUpdate.Id);
+            if (catalogItem == null) return NotFound();
 
-            if (item == null)
+            bool raiseProductPriceChangedEvent = false;
+            IntegrationEvent priceChangedEvent = null;
+
+            if (catalogItem.Price != productToUpdate.Price) raiseProductPriceChangedEvent = true;
+           
+            if (raiseProductPriceChangedEvent) // Create event if price has changed
             {
-                return NotFound();
+                var oldPrice = catalogItem.Price;                
+                priceChangedEvent = new ProductPriceChangedIntegrationEvent(catalogItem.Id, productToUpdate.Price, oldPrice);
             }
 
-            if (item.Price != product.Price)
+            //Update current product
-            {
+            catalogItem = productToUpdate;
-                var oldPrice = item.Price;
-                item.Price = product.Price;
-                var @event = new ProductPriceChangedIntegrationEvent(item.Id, item.Price, oldPrice);
 
+            //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
+            var strategy = _catalogContext.Database.CreateExecutionStrategy();
+            var eventLogService = _integrationEventLogServiceFactory(_catalogContext.Database.GetDbConnection());
+            await strategy.ExecuteAsync(async () =>
+            {
+                // Achieving atomicity between original Catalog database operation and the IntegrationEventLog thanks to a local transaction
                 using (var transaction = _catalogContext.Database.BeginTransaction())
                 {
-                    _catalogContext.CatalogItems.Update(item);
+                    _catalogContext.CatalogItems.Update(catalogItem);
                     await _catalogContext.SaveChangesAsync();
 
-                    await _integrationEventLogService.SaveEventAsync(@event);
+                    //Save to EventLog only if product price changed
+                    if (raiseProductPriceChangedEvent)
+                    {
+
+                        await eventLogService.SaveEventAsync(priceChangedEvent, _catalogContext.Database.CurrentTransaction.GetDbTransaction());
+                    }
 
                     transaction.Commit();
                 }
+            });
 
-                _eventBus.Publish(@event);
 
-                await _integrationEventLogService.MarkEventAsPublishedAsync(@event);               
+            //Publish to Event Bus only if product price changed
-            }         
+            if (raiseProductPriceChangedEvent)
+            {
+                _eventBus.Publish(priceChangedEvent);                                             
+                await eventLogService.MarkEventAsPublishedAsync(priceChangedEvent);                
+            }
 
             return Ok();
         }

src/Services/Catalog/Catalog.API/Dockerfile.nanowin

@@ -1,4 +1,5 @@
 FROM microsoft/dotnet:1.1-runtime-nanoserver 
+SHELL ["powershell"]
 ARG source
 WORKDIR /app
 RUN set-itemproperty -path 'HKLM:\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters' -Name ServerPriorityTimeLimit -Value 0 -Type DWord

src/Services/Catalog/Catalog.API/Infrastructure/CatalogContextSeed.cs

@@ -84,14 +84,14 @@
         {
             return new List<CatalogItem>()
             {
-                new CatalogItem() { CatalogTypeId=2,CatalogBrandId=2, Description = ".NET Bot Black Sweatshirt", Name = ".NET Bot Black Sweatshirt", Price = 19.5M, PictureUri = "http://externalcatalogbaseurltobereplaced/api/v1/pic/1" },
+                new CatalogItem() { CatalogTypeId=2,CatalogBrandId=2, Description = ".NET Bot Black Hoodie", Name = ".NET Bot Black Hoodie", Price = 19.5M, PictureUri = "http://externalcatalogbaseurltobereplaced/api/v1/pic/1" },
                 new CatalogItem() { CatalogTypeId=1,CatalogBrandId=2, Description = ".NET Black & White Mug", Name = ".NET Black & White Mug", Price= 8.50M, PictureUri = "http://externalcatalogbaseurltobereplaced/api/v1/pic/2" },
                 new CatalogItem() { CatalogTypeId=2,CatalogBrandId=5, Description = "Prism White T-Shirt", Name = "Prism White T-Shirt", Price = 12, PictureUri = "http://externalcatalogbaseurltobereplaced/api/v1/pic/3" },
-                new CatalogItem() { CatalogTypeId=2,CatalogBrandId=2, Description = ".NET Foundation Sweatshirt", Name = ".NET Foundation Sweatshirt", Price = 12, PictureUri = "http://externalcatalogbaseurltobereplaced/api/v1/pic/4" },
+                new CatalogItem() { CatalogTypeId=2,CatalogBrandId=2, Description = ".NET Foundation T-shirt", Name = ".NET Foundation T-shirt", Price = 12, PictureUri = "http://externalcatalogbaseurltobereplaced/api/v1/pic/4" },
                 new CatalogItem() { CatalogTypeId=3,CatalogBrandId=5, Description = "Roslyn Red Sheet", Name = "Roslyn Red Sheet", Price = 8.5M, PictureUri = "http://externalcatalogbaseurltobereplaced/api/v1/pic/5" },
-                new CatalogItem() { CatalogTypeId=2,CatalogBrandId=2, Description = ".NET Blue Sweatshirt", Name = ".NET Blue Sweatshirt", Price = 12, PictureUri = "http://externalcatalogbaseurltobereplaced/api/v1/pic/6" },
+                new CatalogItem() { CatalogTypeId=2,CatalogBrandId=2, Description = ".NET Blue Hoodie", Name = ".NET Blue Hoodie", Price = 12, PictureUri = "http://externalcatalogbaseurltobereplaced/api/v1/pic/6" },
                 new CatalogItem() { CatalogTypeId=2,CatalogBrandId=5, Description = "Roslyn Red T-Shirt", Name = "Roslyn Red T-Shirt", Price = 12, PictureUri = "http://externalcatalogbaseurltobereplaced/api/v1/pic/7"  },
-                new CatalogItem() { CatalogTypeId=2,CatalogBrandId=5, Description = "Kudu Purple Sweatshirt", Name = "Kudu Purple Sweatshirt", Price = 8.5M, PictureUri = "http://externalcatalogbaseurltobereplaced/api/v1/pic/8" },
+                new CatalogItem() { CatalogTypeId=2,CatalogBrandId=5, Description = "Kudu Purple Hoodie", Name = "Kudu Purple Hoodie", Price = 8.5M, PictureUri = "http://externalcatalogbaseurltobereplaced/api/v1/pic/8" },
                 new CatalogItem() { CatalogTypeId=1,CatalogBrandId=5, Description = "Cup<T> White Mug", Name = "Cup<T> White Mug", Price = 12, PictureUri = "http://externalcatalogbaseurltobereplaced/api/v1/pic/9" },
                 new CatalogItem() { CatalogTypeId=3,CatalogBrandId=2, Description = ".NET Foundation Sheet", Name = ".NET Foundation Sheet", Price = 12, PictureUri = "http://externalcatalogbaseurltobereplaced/api/v1/pic/10" },
                 new CatalogItem() { CatalogTypeId=3,CatalogBrandId=2, Description = "Cup<T> Sheet", Name = "Cup<T> Sheet", Price = 8.5M, PictureUri = "http://externalcatalogbaseurltobereplaced/api/v1/pic/11" },

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

@@ -9,11 +9,14 @@
     using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Abstractions;
     using Microsoft.eShopOnContainers.BuildingBlocks.EventBusRabbitMQ;
     using Microsoft.eShopOnContainers.BuildingBlocks.IntegrationEventLogEF;
+    using Microsoft.eShopOnContainers.BuildingBlocks.IntegrationEventLogEF.Services;
     using Microsoft.eShopOnContainers.Services.Catalog.API.Infrastructure;
     using Microsoft.Extensions.Configuration;
     using Microsoft.Extensions.DependencyInjection;
     using Microsoft.Extensions.Logging;
     using Microsoft.Extensions.Options;
+    using System;
+    using System.Data.Common;
     using System.Data.SqlClient;
     using System.Reflection;
 
@@ -40,7 +43,6 @@
 
         public void ConfigureServices(IServiceCollection services)
         {
-            var sqlConnection = new SqlConnection(Configuration["ConnectionString"]);
 
             // Add framework services.
             services.AddMvc(options =>
@@ -50,19 +52,19 @@
 
             services.AddDbContext<CatalogContext>(c =>
             {
-                c.UseSqlServer(sqlConnection);
+                options.UseSqlServer(Configuration["ConnectionString"],
+                                     sqlServerOptionsAction: sqlOptions =>
+                                     {                                         
+                                         sqlOptions.MigrationsAssembly(typeof(Startup).GetTypeInfo().Assembly.GetName().Name);
+                                         //Configuring Connection Resiliency: https://docs.microsoft.com/en-us/ef/core/miscellaneous/connection-resiliency 
+                                         sqlOptions.EnableRetryOnFailure(maxRetryCount: 5, maxRetryDelay: TimeSpan.FromSeconds(30), errorNumbersToAdd: null);
+                                     });
                 // Changing default behavior when client evaluation occurs to throw. 
                 // Default in EF Core would be to log a warning when client evaluation is performed.
-                c.ConfigureWarnings(warnings => warnings.Throw(RelationalEventId.QueryClientEvaluationWarning));
+                options.ConfigureWarnings(warnings => warnings.Throw(RelationalEventId.QueryClientEvaluationWarning));
                 //Check Client vs. Server evaluation: https://docs.microsoft.com/en-us/ef/core/querying/client-eval
             });
 
-            services.AddDbContext<IntegrationEventLogContext>(c =>
-            {
-                c.UseSqlServer(sqlConnection, b => b.MigrationsAssembly("Catalog.API"));               
-                c.ConfigureWarnings(warnings => warnings.Throw(RelationalEventId.QueryClientEvaluationWarning));                
-            });
-
             services.Configure<Settings>(Configuration);
 
             // Add framework services.
@@ -88,14 +90,15 @@
                     .AllowCredentials());
             });
 
-            services.AddTransient<IIntegrationEventLogService, IntegrationEventLogService>();
+            services.AddTransient<Func<DbConnection, IIntegrationEventLogService>>(
-            
+                sp => (DbConnection c) => new IntegrationEventLogService(c));
+
             var serviceProvider = services.BuildServiceProvider();
             var configuration = serviceProvider.GetRequiredService<IOptionsSnapshot<Settings>>().Value;
             services.AddSingleton<IEventBus>(new EventBusRabbitMQ(configuration.EventBusConnection));            
         }
 
-        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory, IntegrationEventLogContext integrationEventLogContext)
+        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
         {
             //Configure logs
 
@@ -112,7 +115,11 @@
             //Seed Data
             CatalogContextSeed.SeedAsync(app, loggerFactory)
                 .Wait();
-            
+
+            var integrationEventLogContext = new IntegrationEventLogContext(
+                new DbContextOptionsBuilder<IntegrationEventLogContext>()
+                .UseSqlServer(Configuration["ConnectionString"], b => b.MigrationsAssembly("Catalog.API"))                
+                .Options);
             integrationEventLogContext.Database.Migrate();
 
         }

src/Services/Identity/Identity.API/Dockerfile.nanowin

@@ -1,4 +1,5 @@
 FROM microsoft/dotnet:1.1-runtime-nanoserver 
+SHELL ["powershell"]
 ARG source
 WORKDIR /app
 RUN set-itemproperty -path 'HKLM:\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters' -Name ServerPriorityTimeLimit -Value 0 -Type DWord

src/Services/Identity/Identity.API/Views/Account/Login.cshtml

@@ -45,6 +45,15 @@
                     <p>
                         <a asp-action="Register" asp-route-returnurl="@ViewData["ReturnUrl"]" class="text">Register as a new user?</a>
                     </p>
+                    <p>
+                        Note that for demo purposes you don't need to register and can login with these credentials:
+                    </p>
+                    <p>
+                        User:     <b>demouser@microsoft.com</b>
+                    </p>
+                    <p>
+                        Password: <b>Pass@word1</b>
+                    </p>
                 </form>
             </section>
         </div>

src/Services/Ordering/Ordering.API/Application/Decorators/ValidatorDecorator.cs

@@ -0,0 +1,45 @@
+using FluentValidation;
+using MediatR;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace Ordering.API.Application.Decorators
+{
+    public class ValidatorDecorator<TRequest, TResponse>
+        : IAsyncRequestHandler<TRequest, TResponse>
+         where TRequest : IAsyncRequest<TResponse>
+    {
+        private readonly IAsyncRequestHandler<TRequest, TResponse> _inner;
+        private readonly IValidator<TRequest>[] _validators;
+
+
+        public ValidatorDecorator(
+            IAsyncRequestHandler<TRequest, TResponse> inner,
+            IValidator<TRequest>[] validators)
+        {
+            _inner = inner;
+            _validators = validators;
+        }
+
+        public async Task<TResponse> Handle(TRequest message)
+        {
+            var failures = _validators
+                .Select(v => v.Validate(message))
+                .SelectMany(result => result.Errors)
+                .Where(error => error != null)
+                .ToList();
+
+            if (failures.Any())
+            {
+                throw new ValidationException(
+                    $"Command Validation Errors for type {typeof(TRequest).Name}", failures);
+            }
+            
+            var response = await _inner.Handle(message);
+
+            return response;
+        }
+    }
+}

src/Services/Ordering/Ordering.API/Application/Validations/CreateOrderCommandValidator.cs

@@ -0,0 +1,39 @@
+using FluentValidation;
+using MediatR;
+using Microsoft.eShopOnContainers.Services.Ordering.API.Application.Commands;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using static Microsoft.eShopOnContainers.Services.Ordering.API.Application.Commands.CreateOrderCommand;
+
+namespace Ordering.API.Application.Validations
+{
+    public class CreateOrderCommandValidator : AbstractValidator<CreateOrderCommand>
+    {
+        public CreateOrderCommandValidator()
+        {
+            RuleFor(order => order.City).NotEmpty();
+            RuleFor(order => order.Street).NotEmpty();
+            RuleFor(order => order.State).NotEmpty();
+            RuleFor(order => order.Country).NotEmpty();
+            RuleFor(order => order.ZipCode).NotEmpty();
+            RuleFor(order => order.CardNumber).NotEmpty().Length(12, 19); 
+            RuleFor(order => order.CardHolderName).NotEmpty();
+            RuleFor(order => order.CardExpiration).NotEmpty().Must(BeValidExpirationDate).WithMessage("Please specify a valid card expiration date"); 
+            RuleFor(order => order.CardSecurityNumber).NotEmpty().Length(3); 
+            RuleFor(order => order.CardTypeId).NotEmpty();
+            RuleFor(order => order.OrderItems).Must(ContainOrderItems).WithMessage("No order items found"); 
+        }
+
+        private bool BeValidExpirationDate(DateTime dateTime)
+        {
+            return dateTime >= DateTime.UtcNow;
+        }
+
+        private bool ContainOrderItems(IEnumerable<OrderItemDTO> orderItems)
+        {
+            return orderItems.Any();
+        }
+    }
+}

src/Services/Ordering/Ordering.API/Application/Validations/IdentifierCommandValidator.cs

@@ -0,0 +1,17 @@
+using FluentValidation;
+using Microsoft.eShopOnContainers.Services.Ordering.API.Application.Commands;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace Ordering.API.Application.Validations
+{
+    public class IdentifierCommandValidator : AbstractValidator<IdentifiedCommand<CreateOrderCommand,bool>>
+    {
+        public IdentifierCommandValidator()
+        {
+            RuleFor(customer => customer.Id).NotEmpty();           
+        }
+    }
+}

src/Services/Ordering/Ordering.API/Dockerfile.nanowin

@@ -1,4 +1,5 @@
 FROM microsoft/dotnet:1.1-runtime-nanoserver
+SHELL ["powershell"]
 ARG source
 WORKDIR /app
 RUN set-itemproperty -path 'HKLM:\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters' -Name ServerPriorityTimeLimit -Value 0 -Type DWord

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

@@ -1,9 +1,12 @@
 using Autofac;
 using Autofac.Core;
+using FluentValidation;
 using MediatR;
 using Microsoft.eShopOnContainers.Services.Ordering.API.Application.Commands;
 using Microsoft.eShopOnContainers.Services.Ordering.API.Application.Decorators;
+using Ordering.API.Application.Decorators;
 using Ordering.API.Application.DomainEventHandlers.OrderStartedEvent;
+using Ordering.API.Application.Validations;
 using Ordering.Domain.Events;
 using System.Collections.Generic;
 using System.Linq;
@@ -24,11 +27,17 @@ namespace Microsoft.eShopOnContainers.Services.Ordering.API.Infrastructure.Autof
                     .Where(i => i.IsClosedTypeOf(typeof(IAsyncRequestHandler<,>)))
                     .Select(i => new KeyedService("IAsyncRequestHandler", i)));
 
-            // Register all the Domain Event Handler classes (they implement IAsyncNotificationHandler<>) in assembly holding the Domain Events
+            // Register all the event classes (they implement IAsyncNotificationHandler) in assembly holding the Commands
+            builder.RegisterAssemblyTypes(typeof(ValidateOrAddBuyerAggregateWhenOrderStartedDomainEventHandler).GetTypeInfo().Assembly)
+                .As(o => o.GetInterfaces()
+                    .Where(i => i.IsClosedTypeOf(typeof(IAsyncNotificationHandler<>)))
+                    .Select(i => new KeyedService("IAsyncNotificationHandler", i)));
+
             builder
-                .RegisterAssemblyTypes(typeof(ValidateOrAddBuyerAggregateWhenOrderStartedDomainEventHandler).GetTypeInfo().Assembly)
+                .RegisterAssemblyTypes(typeof(CreateOrderCommandValidator).GetTypeInfo().Assembly)
-                .Where(t => t.IsClosedTypeOf(typeof(IAsyncNotificationHandler<>)))
+                .Where(t => t.IsClosedTypeOf(typeof(IValidator<>)))
-                .AsImplementedInterfaces();           
+                .AsImplementedInterfaces();
+
 
             builder.Register<SingleInstanceFactory>(context =>
             {
@@ -44,9 +53,16 @@ namespace Microsoft.eShopOnContainers.Services.Ordering.API.Infrastructure.Autof
                 return t => (IEnumerable<object>)componentContext.Resolve(typeof(IEnumerable<>).MakeGenericType(t));
             });
 
+            
+
             builder.RegisterGenericDecorator(typeof(LogDecorator<,>),
                     typeof(IAsyncRequestHandler<,>),
-                    "IAsyncRequestHandler");            
+                    "IAsyncRequestHandler")
+                    .Keyed("handlerDecorator", typeof(IAsyncRequestHandler<,>));
+
+            builder.RegisterGenericDecorator(typeof(ValidatorDecorator<,>),
+                    typeof(IAsyncRequestHandler<,>),
+                    fromKey: "handlerDecorator");
         }
     }
 }

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

@@ -28,6 +28,8 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="FluentValidation.AspNetCore" Version="6.4.0" />
+    <PackageReference Include="FluentValidation.MVC6" Version="6.4.0" />
     <PackageReference Include="MediatR.Extensions.Microsoft.DependencyInjection" Version="1.1.0" />
     <PackageReference Include="Autofac.Extensions.DependencyInjection" Version="4.0.0" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="1.1.0" />

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

@@ -52,10 +52,14 @@
             services.AddEntityFrameworkSqlServer()
                     .AddDbContext<OrderingContext>(options =>
                     {
-                        options.UseSqlServer(Configuration["ConnectionString"],
+                    options.UseSqlServer(Configuration["ConnectionString"],
-                            sqlop => sqlop.MigrationsAssembly(typeof(Startup).GetTypeInfo().Assembly.GetName().Name));
+                        sqlServerOptionsAction: sqlOptions =>
+                        {
+                            sqlOptions.MigrationsAssembly(typeof(Startup).GetTypeInfo().Assembly.GetName().Name);
+                            sqlOptions.EnableRetryOnFailure(maxRetryCount: 5, maxRetryDelay: TimeSpan.FromSeconds(30), errorNumbersToAdd: null);
+                        });                                       
                     },
-                    ServiceLifetime.Scoped  //DbContext is shared across the HTTP request scope (graph of objects started in the HTTP request)
+                    ServiceLifetime.Scoped  //Showing explicitly that the DbContext is shared across the HTTP request scope (graph of objects started in the HTTP request)
                     );
 
             services.AddSwaggerGen();

src/Services/Ordering/Ordering.Infrastructure/OrderingContext.cs

@@ -246,7 +246,8 @@ namespace Microsoft.eShopOnContainers.Services.Ordering.Infrastructure
             await _mediator.DispatchDomainEventsAsync(this);
 
 
-            // After executing this line all the changes performed thought the DbContext will be commited
+            // After executing this line all the changes (from the Command Handler and Domain Event Handlers) 
+            // performed thought the DbContext will be commited
             var result = await base.SaveChangesAsync();
 
             return true;

src/Web/WebMVC/Dockerfile.nanowin

@@ -1,4 +1,5 @@
 FROM microsoft/dotnet:1.1-runtime-nanoserver
+SHELL ["powershell"]
 ARG source
 WORKDIR /app
 RUN set-itemproperty -path 'HKLM:\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters' -Name ServerPriorityTimeLimit -Value 0 -Type DWord

src/Web/WebMVC/Views/Account/Login.cshtml

@@ -44,7 +44,16 @@
                     <p>
                         <a asp-action="Register" asp-route-returnurl="@ViewData["ReturnUrl"]" class="text">Register as a new user?</a>
                     </p>
-                </form>
+                    <p>
+                        Note that for demo purposes you don't need to register and can login with these credentials:
+                    </p>
+                    <p>
+                        User:     <b>demouser@microsoft.com</b>
+                    </p>
+                    <p>
+                        Password: <b>Pass@word1</b>
+                    </p>
+</form>
             </section>
         </div>
     </div>

src/Web/WebMVC/Views/Shared/Components/CartList/Default.cshtml

@@ -38,7 +38,7 @@
         <div class="esh-basket-items--border row">
             @if (item.OldUnitPrice != 0)
             {
-                <div class="alert alert-warning esh-basket-margin12" role="alert">&nbsp;The price of the item has changed.Old price was @item.OldUnitPrice $</div>
+                <div class="alert alert-warning esh-basket-margin12" role="alert">&nbsp;Note that the price of this article changed in our Catalog. The old price when you originally added it to the basket was @item.OldUnitPrice $</div>
             }
         </div>
         <br/>

src/Web/WebSPA/Client/modules/basket/basket.component.html

@@ -29,7 +29,7 @@
             </article>
             <br/>
             <div class="esh-basket-items-margin-left1 row">
-                <div class="alert alert-warning" role="alert" *ngIf="item.oldUnitPrice > 0">&nbsp;The price of the item has changed.Old price was {{item.oldUnitPrice}} $</div>
+                <div class="alert alert-warning" role="alert" *ngIf="item.oldUnitPrice > 0">&nbsp;Note that the price of this article changed in our Catalog. The old price when you originally added it to the basket was {{item.oldUnitPrice}} $</div>
             </div>
         </div>
     </div>

src/Web/WebSPA/Dockerfile.nanowin

@@ -1,4 +1,5 @@
 FROM microsoft/dotnet:1.1-runtime-nanoserver
+SHELL ["powershell"]
 ARG source
 WORKDIR /app
 RUN set-itemproperty -path 'HKLM:\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters' -Name ServerPriorityTimeLimit -Value 0 -Type DWord

test/Services/FunctionalTests/Extensions/HttpClientExtensions.cs

@@ -0,0 +1,18 @@
+using Microsoft.AspNetCore.TestHost;
+using System;
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Text;
+
+namespace FunctionalTests.Extensions
+{
+    static class HttpClientExtensions
+    {
+        public static HttpClient CreateIdempotentClient(this TestServer server)
+        {
+            var client = server.CreateClient();
+            client.DefaultRequestHeaders.Add("x-requestid", Guid.NewGuid().ToString());
+            return client;
+        }
+    }
+}

test/Services/FunctionalTests/Services/Catalog/CatalogScenariosBase.cs

@@ -34,7 +34,7 @@ namespace FunctionalTests.Services.Catalog
 
         public static class Post
         {
-            public static string UpdateCatalogProduct = "api/v1/catalog/edit";
+            public static string UpdateCatalogProduct = "api/v1/catalog/update";
         }
     }
 }

test/Services/FunctionalTests/Services/IntegrationEventsScenarios.cs

@@ -43,7 +43,7 @@ namespace FunctionalTests.Services
                 var itemToModify = basket.Items[2];
                 var oldPrice = itemToModify.UnitPrice;
                 var newPrice = oldPrice + priceModification;
-                var pRes = await catalogClient.PostAsync(CatalogScenariosBase.Post.UpdateCatalogProduct, new StringContent(ChangePrice(itemToModify, newPrice), UTF8Encoding.UTF8, "application/json"));
+                var pRes = await catalogClient.PostAsync(CatalogScenariosBase.Post.UpdateCatalogProduct, new StringContent(ChangePrice(itemToModify, newPrice, originalCatalogProducts), UTF8Encoding.UTF8, "application/json"));
                                 
                 var modifiedCatalogProducts = await GetCatalogAsync(catalogClient);               
 
@@ -100,14 +100,11 @@ namespace FunctionalTests.Services
             return JsonConvert.DeserializeObject<PaginatedItemsViewModel<CatalogItem>>(items);
         }
 
-        private string ChangePrice(BasketItem itemToModify, decimal newPrice)
+        private string ChangePrice(BasketItem itemToModify, decimal newPrice, PaginatedItemsViewModel<CatalogItem> catalogProducts)
         {
-            var item = new CatalogItem()
+            var catalogProduct = catalogProducts.Data.Single(pr => pr.Id == int.Parse(itemToModify.ProductId));
-            {
+            catalogProduct.Price = newPrice;
-                Id = int.Parse(itemToModify.ProductId),
+            return JsonConvert.SerializeObject(catalogProduct);
-                Price = newPrice
-            };
-            return JsonConvert.SerializeObject(item);
         }
 
         private CustomerBasket ComposeBasket(string customerId, IEnumerable<CatalogItem> items)

test/Services/FunctionalTests/Services/Ordering/OrderingScenarios.cs

@@ -1,4 +1,5 @@
-using Microsoft.eShopOnContainers.Services.Ordering.API.Application.Commands;
+using FunctionalTests.Extensions;
+using Microsoft.eShopOnContainers.Services.Ordering.API.Application.Commands;
 using Microsoft.eShopOnContainers.WebMVC.ViewModels;
 using Newtonsoft.Json;
 using System;
@@ -19,7 +20,7 @@ namespace FunctionalTests.Services.Ordering
         {
             using (var server = CreateServer())
             {
-                var client = server.CreateClient();
+                var client = server.CreateIdempotentClient();
 
                 // GIVEN an order is created              
                 await client.PostAsync(Post.AddNewOrder, new StringContent(BuildOrder(), UTF8Encoding.UTF8, "application/json"));
@@ -62,7 +63,7 @@ namespace FunctionalTests.Services.Ordering
             order.AddOrderItem(new OrderItemDTO()
             {
                 ProductId = 1,
-                Discount = 12M,
+                Discount = 8M,
                 UnitPrice = 10,
                 Units = 1,
                 ProductName = "Some name"

test/Services/IntegrationTests/Services/Extensions/HttpClientExtensions.cs

@@ -0,0 +1,18 @@
+using Microsoft.AspNetCore.TestHost;
+using System;
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Text;
+
+namespace IntegrationTests.Services.Extensions
+{
+    static class HttpClientExtensions
+    {
+        public static HttpClient CreateIdempotentClient(this TestServer server)
+        {
+            var client = server.CreateClient();
+            client.DefaultRequestHeaders.Add("x-requestid", Guid.NewGuid().ToString());
+            return client;
+        }
+    }
+}

test/Services/IntegrationTests/Services/Ordering/OrderingScenarios.cs

@@ -1,5 +1,7 @@
 namespace IntegrationTests.Services.Ordering
 {
+    using IntegrationTests.Services.Extensions;
+    using Microsoft.AspNetCore.TestHost;
     using Microsoft.eShopOnContainers.Services.Ordering.API.Application.Commands;
     using Newtonsoft.Json;
     using System;
@@ -28,9 +30,9 @@
         public async Task AddNewOrder_add_new_order_and_response_ok_status_code()
         {
             using (var server = CreateServer())
-            {
+            {                
                 var content = new StringContent(BuildOrder(), UTF8Encoding.UTF8, "application/json");
-                var response = await server.CreateClient()
+                var response = await server.CreateIdempotentClient()
                     .PostAsync(Post.AddNewOrder, content);
 
                 response.EnsureSuccessStatusCode();
@@ -44,7 +46,7 @@
             {
                 var content = new StringContent(BuildOrderWithInvalidExperationTime(), UTF8Encoding.UTF8, "application/json");
 
-                var response = await server.CreateClient()
+                var response = await server.CreateIdempotentClient()
                     .PostAsync(Post.AddNewOrder, content);
 
                 Assert.True(response.StatusCode == System.Net.HttpStatusCode.BadRequest);
@@ -102,5 +104,5 @@
 
             return JsonConvert.SerializeObject(order);
         }
-    }
+    }        
 }