329 lines
13 KiB
C#
329 lines
13 KiB
C#
namespace Webhooks.API;
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public class Startup
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{
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public IConfiguration Configuration { get; }
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public Startup(IConfiguration configuration)
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{
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Configuration = configuration;
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}
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public IServiceProvider ConfigureServices(IServiceCollection services)
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{
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services
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.AddAppInsight(Configuration)
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.AddCustomRouting(Configuration)
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.AddCustomDbContext(Configuration)
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.AddSwagger(Configuration)
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.AddCustomHealthCheck(Configuration)
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.AddDevspaces()
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.AddHttpClientServices(Configuration)
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.AddIntegrationServices(Configuration)
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.AddEventBus(Configuration)
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.AddCustomAuthentication(Configuration)
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.AddSingleton<IHttpContextAccessor, HttpContextAccessor>()
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.AddTransient<IIdentityService, IdentityService>()
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.AddTransient<IGrantUrlTesterService, GrantUrlTesterService>()
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.AddTransient<IWebhooksRetriever, WebhooksRetriever>()
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.AddTransient<IWebhooksSender, WebhooksSender>();
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var container = new ContainerBuilder();
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container.Populate(services);
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return new AutofacServiceProvider(container.Build());
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}
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public void Configure(IApplicationBuilder app, ILoggerFactory loggerFactory)
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{
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var pathBase = Configuration["PATH_BASE"];
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if (!string.IsNullOrEmpty(pathBase))
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{
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loggerFactory.CreateLogger("init").LogDebug("Using PATH BASE '{PathBase}'", pathBase);
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app.UsePathBase(pathBase);
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}
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app.UseRouting();
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app.UseCors("CorsPolicy");
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ConfigureAuth(app);
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app.UseEndpoints(endpoints =>
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{
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endpoints.MapDefaultControllerRoute();
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endpoints.MapControllers();
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endpoints.MapHealthChecks("/hc", new HealthCheckOptions()
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{
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Predicate = _ => true,
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ResponseWriter = UIResponseWriter.WriteHealthCheckUIResponse
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});
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endpoints.MapHealthChecks("/liveness", new HealthCheckOptions
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{
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Predicate = r => r.Name.Contains("self")
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});
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});
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app.UseSwagger()
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.UseSwaggerUI(c =>
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{
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c.SwaggerEndpoint($"{ (!string.IsNullOrEmpty(pathBase) ? pathBase : string.Empty) }/swagger/v1/swagger.json", "Webhooks.API V1");
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c.OAuthClientId("webhooksswaggerui");
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c.OAuthAppName("WebHooks Service Swagger UI");
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});
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ConfigureEventBus(app);
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}
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protected virtual void ConfigureAuth(IApplicationBuilder app)
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{
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app.UseAuthentication();
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app.UseAuthorization();
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}
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protected virtual void ConfigureEventBus(IApplicationBuilder app)
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{
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var eventBus = app.ApplicationServices.GetRequiredService<IEventBus>();
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eventBus.Subscribe<ProductPriceChangedIntegrationEvent, ProductPriceChangedIntegrationEventHandler>();
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eventBus.Subscribe<OrderStatusChangedToShippedIntegrationEvent, OrderStatusChangedToShippedIntegrationEventHandler>();
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eventBus.Subscribe<OrderStatusChangedToPaidIntegrationEvent, OrderStatusChangedToPaidIntegrationEventHandler>();
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}
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}
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static class CustomExtensionMethods
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{
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public static IServiceCollection AddAppInsight(this IServiceCollection services, IConfiguration configuration)
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{
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services.AddApplicationInsightsTelemetry(configuration);
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services.AddApplicationInsightsKubernetesEnricher();
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return services;
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}
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public static IServiceCollection AddCustomRouting(this IServiceCollection services, IConfiguration configuration)
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{
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services.AddControllers(options =>
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{
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options.Filters.Add(typeof(HttpGlobalExceptionFilter));
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});
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services.AddCors(options =>
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{
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options.AddPolicy("CorsPolicy",
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builder => builder
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.SetIsOriginAllowed((host) => true)
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.AllowAnyMethod()
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.AllowAnyHeader()
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.AllowCredentials());
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});
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return services;
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}
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public static IServiceCollection AddCustomDbContext(this IServiceCollection services, IConfiguration configuration)
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{
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services.AddEntityFrameworkSqlServer()
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.AddDbContext<WebhooksContext>(options =>
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{
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options.UseSqlServer(configuration["ConnectionString"],
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sqlServerOptionsAction: sqlOptions =>
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{
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sqlOptions.MigrationsAssembly(typeof(Startup).GetTypeInfo().Assembly.GetName().Name);
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//Configuring Connection Resiliency: https://docs.microsoft.com/en-us/ef/core/miscellaneous/connection-resiliency
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sqlOptions.EnableRetryOnFailure(maxRetryCount: 15, maxRetryDelay: TimeSpan.FromSeconds(30), errorNumbersToAdd: null);
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});
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});
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return services;
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}
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public static IServiceCollection AddSwagger(this IServiceCollection services, IConfiguration configuration)
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{
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services.AddSwaggerGen(options =>
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{
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var basePath = AppDomain.CurrentDomain.BaseDirectory;
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var fileName = typeof(Program).GetTypeInfo().Assembly.GetName().Name + ".xml";
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var xmlComments = Path.Combine(basePath, fileName);
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options.IncludeXmlComments(xmlComments);
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options.SwaggerDoc("v1", new OpenApiInfo
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{
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Title = "eShopOnContainers - Webhooks HTTP API",
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Version = "v1",
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Description = "The Webhooks Microservice HTTP API. This is a simple webhooks CRUD registration entrypoint",
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TermsOfService = new Uri("https://microsoft.com/"),
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Contact = new OpenApiContact
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{
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Name = "Microsoft Contact",
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Url = new Uri("https://microsoft.com/")
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},
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License = new OpenApiLicense
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{
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Name = "Microsoft License",
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Url = new Uri("https://microsoft.com/")
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}
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});
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options.AddSecurityDefinition("oauth2", new OpenApiSecurityScheme
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{
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Type = SecuritySchemeType.OAuth2,
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Flows = new OpenApiOAuthFlows()
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{
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Implicit = new OpenApiOAuthFlow()
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{
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AuthorizationUrl = new Uri($"{configuration.GetValue<string>("IdentityUrlExternal")}/connect/authorize"),
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TokenUrl = new Uri($"{configuration.GetValue<string>("IdentityUrlExternal")}/connect/token"),
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Scopes = new Dictionary<string, string>()
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{
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{ "webhooks", "Webhooks API" }
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}
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}
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}
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});
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options.OperationFilter<AuthorizeCheckOperationFilter>();
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});
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return services;
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}
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public static IServiceCollection AddEventBus(this IServiceCollection services, IConfiguration configuration)
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{
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if (configuration.GetValue<bool>("AzureServiceBusEnabled"))
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{
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services.AddSingleton<IEventBus, EventBusServiceBus>(sp =>
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{
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var serviceBusPersisterConnection = sp.GetRequiredService<IServiceBusPersisterConnection>();
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var iLifetimeScope = sp.GetRequiredService<ILifetimeScope>();
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var logger = sp.GetRequiredService<ILogger<EventBusServiceBus>>();
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var eventBusSubcriptionsManager = sp.GetRequiredService<IEventBusSubscriptionsManager>();
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string subscriptionName = configuration["SubscriptionClientName"];
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return new EventBusServiceBus(serviceBusPersisterConnection, logger,
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eventBusSubcriptionsManager, iLifetimeScope, subscriptionName);
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});
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}
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else
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{
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services.AddSingleton<IEventBus, EventBusRabbitMQ>(sp =>
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{
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var subscriptionClientName = configuration["SubscriptionClientName"];
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var rabbitMQPersistentConnection = sp.GetRequiredService<IRabbitMQPersistentConnection>();
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var iLifetimeScope = sp.GetRequiredService<ILifetimeScope>();
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var logger = sp.GetRequiredService<ILogger<EventBusRabbitMQ>>();
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var eventBusSubcriptionsManager = sp.GetRequiredService<IEventBusSubscriptionsManager>();
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var retryCount = 5;
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if (!string.IsNullOrEmpty(configuration["EventBusRetryCount"]))
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{
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retryCount = int.Parse(configuration["EventBusRetryCount"]);
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}
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return new EventBusRabbitMQ(rabbitMQPersistentConnection, logger, iLifetimeScope, eventBusSubcriptionsManager, subscriptionClientName, retryCount);
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});
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}
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services.AddSingleton<IEventBusSubscriptionsManager, InMemoryEventBusSubscriptionsManager>();
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services.AddTransient<ProductPriceChangedIntegrationEventHandler>();
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services.AddTransient<OrderStatusChangedToShippedIntegrationEventHandler>();
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services.AddTransient<OrderStatusChangedToPaidIntegrationEventHandler>();
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return services;
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}
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public static IServiceCollection AddCustomHealthCheck(this IServiceCollection services, IConfiguration configuration)
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{
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var accountName = configuration.GetValue<string>("AzureStorageAccountName");
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var accountKey = configuration.GetValue<string>("AzureStorageAccountKey");
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var hcBuilder = services.AddHealthChecks();
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hcBuilder
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.AddCheck("self", () => HealthCheckResult.Healthy())
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.AddSqlServer(
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configuration["ConnectionString"],
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name: "WebhooksApiDb-check",
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tags: new string[] { "webhooksdb" });
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return services;
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}
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public static IServiceCollection AddHttpClientServices(this IServiceCollection services, IConfiguration configuration)
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{
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services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();
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services.AddHttpClient("extendedhandlerlifetime").SetHandlerLifetime(Timeout.InfiniteTimeSpan);
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//add http client services
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services.AddHttpClient("GrantClient")
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.SetHandlerLifetime(TimeSpan.FromMinutes(5))
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.AddDevspacesSupport();
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return services;
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}
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public static IServiceCollection AddIntegrationServices(this IServiceCollection services, IConfiguration configuration)
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{
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services.AddTransient<Func<DbConnection, IIntegrationEventLogService>>(
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sp => (DbConnection c) => new IntegrationEventLogService(c));
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if (configuration.GetValue<bool>("AzureServiceBusEnabled"))
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{
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services.AddSingleton<IServiceBusPersisterConnection>(sp =>
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{
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var subscriptionClientName = configuration["SubscriptionClientName"];
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return new DefaultServiceBusPersisterConnection(configuration["EventBusConnection"]);
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});
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}
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else
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{
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services.AddSingleton<IRabbitMQPersistentConnection>(sp =>
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{
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var logger = sp.GetRequiredService<ILogger<DefaultRabbitMQPersistentConnection>>();
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var factory = new ConnectionFactory()
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{
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HostName = configuration["EventBusConnection"],
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DispatchConsumersAsync = true
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};
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if (!string.IsNullOrEmpty(configuration["EventBusUserName"]))
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{
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factory.UserName = configuration["EventBusUserName"];
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}
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if (!string.IsNullOrEmpty(configuration["EventBusPassword"]))
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{
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factory.Password = configuration["EventBusPassword"];
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}
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var retryCount = 5;
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if (!string.IsNullOrEmpty(configuration["EventBusRetryCount"]))
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{
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retryCount = int.Parse(configuration["EventBusRetryCount"]);
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}
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return new DefaultRabbitMQPersistentConnection(factory, logger, retryCount);
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});
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}
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return services;
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}
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public static IServiceCollection AddCustomAuthentication(this IServiceCollection services, IConfiguration configuration)
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{
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// prevent from mapping "sub" claim to nameidentifier.
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JwtSecurityTokenHandler.DefaultInboundClaimTypeMap.Remove("sub");
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var identityUrl = configuration.GetValue<string>("IdentityUrl");
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services.AddAuthentication(options =>
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{
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options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
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options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
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}).AddJwtBearer(options =>
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{
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options.Authority = identityUrl;
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options.RequireHttpsMetadata = false;
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options.Audience = "webhooks";
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});
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return services;
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}
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}
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