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using Autofac;
using Autofac.Extensions.DependencyInjection;
using Microsoft.AspNetCore.Builder;
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using Microsoft.AspNetCore.Hosting;
using Microsoft.Azure.ServiceBus;
using Microsoft.eShopOnContainers.BuildingBlocks.EventBus;
using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Abstractions;
using Microsoft.eShopOnContainers.BuildingBlocks.EventBusRabbitMQ;
using Microsoft.eShopOnContainers.BuildingBlocks.EventBusServiceBus;
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using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.HealthChecks;
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using Microsoft.Extensions.Logging;
using Payment.API.IntegrationEvents.EventHandling;
using Payment.API.IntegrationEvents.Events;
using RabbitMQ.Client;
using System;
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using System.Threading.Tasks;
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using Swashbuckle.AspNetCore.Swagger;
using Microsoft.ApplicationInsights.Extensibility;
using Microsoft.ApplicationInsights.ServiceFabric;
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namespace Payment.API
{
public class Startup
{
public Startup(IConfiguration configuration)
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{
Configuration = configuration;
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}
public IConfiguration Configuration { get; }
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// This method gets called by the runtime. Use this method to add services to the container.
public IServiceProvider ConfigureServices(IServiceCollection services)
{
services.Configure<PaymentSettings>(Configuration);
RegisterAppInsights(services);
if (Configuration.GetValue<bool>("AzureServiceBusEnabled"))
{
services.AddSingleton<IServiceBusPersisterConnection>(sp =>
{
var logger = sp.GetRequiredService<ILogger<DefaultServiceBusPersisterConnection>>();
var serviceBusConnectionString = Configuration["EventBusConnection"];
var serviceBusConnection = new ServiceBusConnectionStringBuilder(serviceBusConnectionString);
return new DefaultServiceBusPersisterConnection(serviceBusConnection, logger);
});
}
else
{
services.AddSingleton<IRabbitMQPersistentConnection>(sp =>
{
var logger = sp.GetRequiredService<ILogger<DefaultRabbitMQPersistentConnection>>();
var factory = new ConnectionFactory()
{
HostName = Configuration["EventBusConnection"]
};
if (!string.IsNullOrEmpty(Configuration["EventBusUserName"]))
{
factory.UserName = Configuration["EventBusUserName"];
}
if (!string.IsNullOrEmpty(Configuration["EventBusPassword"]))
{
factory.Password = Configuration["EventBusPassword"];
}
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var retryCount = 5;
if (!string.IsNullOrEmpty(Configuration["EventBusRetryCount"]))
{
retryCount = int.Parse(Configuration["EventBusRetryCount"]);
}
return new DefaultRabbitMQPersistentConnection(factory, logger, retryCount);
});
}
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services.AddHealthChecks(checks =>
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{
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checks.AddValueTaskCheck("HTTP Endpoint", () => new ValueTask<IHealthCheckResult>(HealthCheckResult.Healthy("Ok")));
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});
RegisterEventBus(services);
var container = new ContainerBuilder();
container.Populate(services);
return new AutofacServiceProvider(container.Build());
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}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{
loggerFactory.AddAzureWebAppDiagnostics();
loggerFactory.AddApplicationInsights(app.ApplicationServices, LogLevel.Trace);
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var pathBase = Configuration["PATH_BASE"];
if (!string.IsNullOrEmpty(pathBase))
{
app.UsePathBase(pathBase);
}
ConfigureEventBus(app);
}
private void RegisterAppInsights(IServiceCollection services)
{
services.AddApplicationInsightsTelemetry(Configuration);
if (Configuration.GetValue<string>("OrchestratorType").Equals("K8S"))
{
// Enable K8s telemetry initializer
services.EnableKubernetes();
}
if (Configuration.GetValue<string>("OrchestratorType").Equals("SF"))
{
// Enable SF telemetry initializer
services.AddSingleton<ITelemetryInitializer>((serviceProvider) =>
new FabricTelemetryInitializer());
}
}
private void RegisterEventBus(IServiceCollection services)
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{
if (Configuration.GetValue<bool>("AzureServiceBusEnabled"))
{
services.AddSingleton<IEventBus, EventBusServiceBus>(sp =>
{
var serviceBusPersisterConnection = sp.GetRequiredService<IServiceBusPersisterConnection>();
var iLifetimeScope = sp.GetRequiredService<ILifetimeScope>();
var logger = sp.GetRequiredService<ILogger<EventBusServiceBus>>();
var eventBusSubcriptionsManager = sp.GetRequiredService<IEventBusSubscriptionsManager>();
var subscriptionClientName = Configuration["SubscriptionClientName"];
return new EventBusServiceBus(serviceBusPersisterConnection, logger,
eventBusSubcriptionsManager, subscriptionClientName, iLifetimeScope);
});
}
else
{
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services.AddSingleton<IEventBus, EventBusRabbitMQ>(sp =>
{
var rabbitMQPersistentConnection = sp.GetRequiredService<IRabbitMQPersistentConnection>();
var iLifetimeScope = sp.GetRequiredService<ILifetimeScope>();
var logger = sp.GetRequiredService<ILogger<EventBusRabbitMQ>>();
var eventBusSubcriptionsManager = sp.GetRequiredService<IEventBusSubscriptionsManager>();
var retryCount = 5;
if (!string.IsNullOrEmpty(Configuration["EventBusRetryCount"]))
{
retryCount = int.Parse(Configuration["EventBusRetryCount"]);
}
return new EventBusRabbitMQ(rabbitMQPersistentConnection, logger, iLifetimeScope, eventBusSubcriptionsManager, retryCount);
});
}
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services.AddTransient<OrderStatusChangedToStockConfirmedIntegrationEventHandler>();
services.AddSingleton<IEventBusSubscriptionsManager, InMemoryEventBusSubscriptionsManager>();
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}
private void ConfigureEventBus(IApplicationBuilder app)
{
var eventBus = app.ApplicationServices.GetRequiredService<IEventBus>();
eventBus.Subscribe<OrderStatusChangedToStockConfirmedIntegrationEvent, OrderStatusChangedToStockConfirmedIntegrationEventHandler>();
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}
}
}