2022-03-21 15:44:40 +03:00

405 lines
16 KiB
C#

namespace Microsoft.eShopOnContainers.Services.Ordering.API;
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
public virtual IServiceProvider ConfigureServices(IServiceCollection services)
{
services
.AddGrpc(options =>
{
options.EnableDetailedErrors = true;
})
.Services
.AddApplicationInsights(Configuration)
.AddCustomMvc()
.AddHealthChecks(Configuration)
.AddCustomDbContext(Configuration)
.AddCustomSwagger(Configuration)
.AddCustomIntegrations(Configuration)
.AddCustomConfiguration(Configuration)
.AddEventBus(Configuration)
.AddCustomAuthentication(Configuration);
//configure autofac
var container = new ContainerBuilder();
container.Populate(services);
container.RegisterModule(new MediatorModule());
container.RegisterModule(new ApplicationModule(Configuration["ConnectionString"]));
return new AutofacServiceProvider(container.Build());
}
public void Configure(IApplicationBuilder app, IWebHostEnvironment env, ILoggerFactory loggerFactory)
{
//loggerFactory.AddAzureWebAppDiagnostics();
//loggerFactory.AddApplicationInsights(app.ApplicationServices, LogLevel.Trace);
var pathBase = Configuration["PATH_BASE"];
if (!string.IsNullOrEmpty(pathBase))
{
loggerFactory.CreateLogger<Startup>().LogDebug("Using PATH BASE '{pathBase}'", pathBase);
app.UsePathBase(pathBase);
}
app.UseSwagger()
.UseSwaggerUI(c =>
{
c.SwaggerEndpoint($"{ (!string.IsNullOrEmpty(pathBase) ? pathBase : string.Empty) }/swagger/v1/swagger.json", "Ordering.API V1");
c.OAuthClientId("orderingswaggerui");
c.OAuthAppName("Ordering Swagger UI");
});
app.UseRouting();
app.UseCors("CorsPolicy");
ConfigureAuth(app);
app.UseEndpoints(endpoints =>
{
endpoints.MapGrpcService<OrderingService>();
endpoints.MapDefaultControllerRoute();
endpoints.MapControllers();
endpoints.MapGet("/_proto/", async ctx =>
{
ctx.Response.ContentType = "text/plain";
using var fs = new FileStream(Path.Combine(env.ContentRootPath, "Proto", "basket.proto"), FileMode.Open, FileAccess.Read);
using var sr = new StreamReader(fs);
while (!sr.EndOfStream)
{
var line = await sr.ReadLineAsync();
if (line != "/* >>" || line != "<< */")
{
await ctx.Response.WriteAsync(line);
}
}
});
endpoints.MapHealthChecks("/hc", new HealthCheckOptions()
{
Predicate = _ => true,
ResponseWriter = UIResponseWriter.WriteHealthCheckUIResponse
});
endpoints.MapHealthChecks("/liveness", new HealthCheckOptions
{
Predicate = r => r.Name.Contains("self")
});
});
ConfigureEventBus(app);
}
private void ConfigureEventBus(IApplicationBuilder app)
{
var eventBus = app.ApplicationServices.GetRequiredService<BuildingBlocks.EventBus.Abstractions.IEventBus>();
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<OrderPaymentSucceededIntegrationEvent, IIntegrationEventHandler<OrderPaymentSucceededIntegrationEvent>>();
}
protected virtual void ConfigureAuth(IApplicationBuilder app)
{
app.UseAuthentication();
app.UseAuthorization();
}
}
static class CustomExtensionsMethods
{
public static IServiceCollection AddApplicationInsights(this IServiceCollection services, IConfiguration configuration)
{
services.AddApplicationInsightsTelemetry(configuration);
services.AddApplicationInsightsKubernetesEnricher();
return services;
}
public static IServiceCollection AddCustomMvc(this IServiceCollection services)
{
// Add framework services.
services.AddControllers(options =>
{
options.Filters.Add(typeof(HttpGlobalExceptionFilter));
})
// Added for functional tests
.AddApplicationPart(typeof(OrdersController).Assembly)
.AddJsonOptions(options => options.JsonSerializerOptions.WriteIndented = true)
.SetCompatibilityVersion(CompatibilityVersion.Version_3_0);
services.AddCors(options =>
{
options.AddPolicy("CorsPolicy",
builder => builder
.SetIsOriginAllowed((host) => true)
.AllowAnyMethod()
.AllowAnyHeader()
.AllowCredentials());
});
return services;
}
public static IServiceCollection AddHealthChecks(this IServiceCollection services, IConfiguration configuration)
{
var hcBuilder = services.AddHealthChecks();
hcBuilder.AddCheck("self", () => HealthCheckResult.Healthy());
hcBuilder
.AddSqlServer(
configuration["ConnectionString"],
name: "OrderingDB-check",
tags: new string[] { "orderingdb" });
if (configuration.GetValue<bool>("AzureServiceBusEnabled"))
{
hcBuilder
.AddAzureServiceBusTopic(
configuration["EventBusConnection"],
topicName: "eshop_event_bus",
name: "ordering-servicebus-check",
tags: new string[] { "servicebus" });
}
else
{
hcBuilder
.AddRabbitMQ(
$"amqp://{configuration["EventBusConnection"]}",
name: "ordering-rabbitmqbus-check",
tags: new string[] { "rabbitmqbus" });
}
return services;
}
public static IServiceCollection AddCustomDbContext(this IServiceCollection services, IConfiguration configuration)
{
services.AddDbContext<OrderingContext>(options =>
{
options.UseSqlServer(configuration["ConnectionString"],
sqlServerOptionsAction: sqlOptions =>
{
sqlOptions.MigrationsAssembly(typeof(Startup).GetTypeInfo().Assembly.GetName().Name);
sqlOptions.EnableRetryOnFailure(maxRetryCount: 15, maxRetryDelay: TimeSpan.FromSeconds(30), errorNumbersToAdd: null);
});
},
ServiceLifetime.Scoped //Showing explicitly that the DbContext is shared across the HTTP request scope (graph of objects started in the HTTP request)
);
services.AddDbContext<IntegrationEventLogContext>(options =>
{
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: 15, maxRetryDelay: TimeSpan.FromSeconds(30), errorNumbersToAdd: null);
});
});
return services;
}
public static IServiceCollection AddCustomSwagger(this IServiceCollection services, IConfiguration configuration)
{
services.AddSwaggerGen(options =>
{
var basePath = AppDomain.CurrentDomain.BaseDirectory;
var fileName = typeof(Startup).GetTypeInfo().Assembly.GetName().Name + ".xml";
var xmlComments = Path.Combine(basePath, fileName);
options.IncludeXmlComments(xmlComments);
options.SwaggerDoc("v1", new OpenApiInfo
{
Title = "eShopOnContainers - Ordering HTTP API",
Version = "v1",
Description = "The Ordering Service HTTP API",
TermsOfService = new Uri("https://microsoft.com/terms"),
Contact = new OpenApiContact
{
Name = "Microsoft Contact",
Url = new Uri("https://microsoft.com/")
},
License = new OpenApiLicense
{
Name = "Microsoft License",
Url = new Uri("https://microsoft.com/")
}
});
options.AddSecurityDefinition("oauth2", new OpenApiSecurityScheme
{
Type = SecuritySchemeType.OAuth2,
Flows = new OpenApiOAuthFlows()
{
Implicit = new OpenApiOAuthFlow()
{
AuthorizationUrl = new Uri($"{configuration.GetValue<string>("IdentityUrlExternal")}/connect/authorize"),
TokenUrl = new Uri($"{configuration.GetValue<string>("IdentityUrlExternal")}/connect/token"),
Scopes = new Dictionary<string, string>()
{
{ "orders", "Ordering API" }
}
}
}
});
options.OperationFilter<AuthorizeCheckOperationFilter>();
});
return services;
}
public static IServiceCollection AddCustomIntegrations(this IServiceCollection services, IConfiguration configuration)
{
services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();
services.AddTransient<IIdentityService, IdentityService>();
services.AddTransient<Func<DbConnection, IIntegrationEventLogService>>(
sp => (DbConnection c) => new IntegrationEventLogService(c));
services.AddTransient<IOrderingIntegrationEventService, OrderingIntegrationEventService>();
if (configuration.GetValue<bool>("AzureServiceBusEnabled"))
{
services.AddSingleton<IServiceBusPersisterConnection>(sp =>
{
var serviceBusConnectionString = configuration["EventBusConnection"];
var subscriptionClientName = configuration["SubscriptionClientName"];
return new DefaultServiceBusPersisterConnection(serviceBusConnectionString);
});
}
else
{
services.AddSingleton<IRabbitMQPersistentConnection>(sp =>
{
var logger = sp.GetRequiredService<ILogger<DefaultRabbitMQPersistentConnection>>();
var factory = new ConnectionFactory()
{
HostName = configuration["EventBusConnection"],
DispatchConsumersAsync = true
};
if (!string.IsNullOrEmpty(configuration["EventBusUserName"]))
{
factory.UserName = configuration["EventBusUserName"];
}
if (!string.IsNullOrEmpty(configuration["EventBusPassword"]))
{
factory.Password = configuration["EventBusPassword"];
}
var retryCount = 5;
if (!string.IsNullOrEmpty(configuration["EventBusRetryCount"]))
{
retryCount = int.Parse(configuration["EventBusRetryCount"]);
}
return new DefaultRabbitMQPersistentConnection(factory, logger, retryCount);
});
}
return services;
}
public static IServiceCollection AddCustomConfiguration(this IServiceCollection services, IConfiguration configuration)
{
services.AddOptions();
services.Configure<OrderingSettings>(configuration);
services.Configure<ApiBehaviorOptions>(options =>
{
options.InvalidModelStateResponseFactory = context =>
{
var problemDetails = new ValidationProblemDetails(context.ModelState)
{
Instance = context.HttpContext.Request.Path,
Status = StatusCodes.Status400BadRequest,
Detail = "Please refer to the errors property for additional details."
};
return new BadRequestObjectResult(problemDetails)
{
ContentTypes = { "application/problem+json", "application/problem+xml" }
};
};
});
return services;
}
public static IServiceCollection AddEventBus(this IServiceCollection services, IConfiguration configuration)
{
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>();
string subscriptionName = configuration["SubscriptionClientName"];
return new EventBusServiceBus(serviceBusPersisterConnection, logger,
eventBusSubcriptionsManager, iLifetimeScope, subscriptionName);
});
}
else
{
services.AddSingleton<IEventBus, EventBusRabbitMQ>(sp =>
{
var subscriptionClientName = configuration["SubscriptionClientName"];
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, subscriptionClientName, retryCount);
});
}
services.AddSingleton<IEventBusSubscriptionsManager, InMemoryEventBusSubscriptionsManager>();
return services;
}
public static IServiceCollection AddCustomAuthentication(this IServiceCollection services, IConfiguration configuration)
{
// prevent from mapping "sub" claim to nameidentifier.
JwtSecurityTokenHandler.DefaultInboundClaimTypeMap.Remove("sub");
var identityUrl = configuration.GetValue<string>("IdentityUrl");
services.AddAuthentication(options =>
{
options.DefaultAuthenticateScheme = AspNetCore.Authentication.JwtBearer.JwtBearerDefaults.AuthenticationScheme;
options.DefaultChallengeScheme = AspNetCore.Authentication.JwtBearer.JwtBearerDefaults.AuthenticationScheme;
}).AddJwtBearer(options =>
{
options.Authority = identityUrl;
options.RequireHttpsMetadata = false;
options.Audience = "orders";
});
return services;
}
}