457 lines
18 KiB
C#
457 lines
18 KiB
C#
using Autofac.Core;
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using Microsoft.Azure.Amqp.Framing;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.Logging;
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var appName = "Ordering.API";
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var builder = WebApplication.CreateBuilder(new WebApplicationOptions
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{
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Args = args,
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ApplicationName = typeof(Program).Assembly.FullName,
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ContentRootPath = Directory.GetCurrentDirectory()
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});
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if (builder.Configuration.GetValue<bool>("UseVault", false))
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{
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TokenCredential credential = new ClientSecretCredential(
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builder.Configuration["Vault:TenantId"],
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builder.Configuration["Vault:ClientId"],
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builder.Configuration["Vault:ClientSecret"]);
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builder.Configuration.AddAzureKeyVault(new Uri($"https://{builder.Configuration["Vault:Name"]}.vault.azure.net/"), credential);
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}
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builder.Configuration.SetBasePath(Directory.GetCurrentDirectory());
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builder.Configuration.AddJsonFile("appsettings.json", optional: false, reloadOnChange: true);
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builder.Configuration.AddEnvironmentVariables();
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builder.WebHost.ConfigureKestrel(options =>
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{
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var ports = GetDefinedPorts(builder.Configuration);
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options.Listen(IPAddress.Any, ports.httpPort, listenOptions =>
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{
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listenOptions.Protocols = HttpProtocols.Http1AndHttp2;
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});
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options.Listen(IPAddress.Any, ports.grpcPort, listenOptions =>
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{
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listenOptions.Protocols = HttpProtocols.Http2;
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});
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});
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builder.WebHost.CaptureStartupErrors(false);
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builder.Host.UseSerilog(CreateSerilogLogger(builder.Configuration));
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builder.Services
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.AddGrpc(options =>
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{
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options.EnableDetailedErrors = true;
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})
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.Services
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.AddApplicationInsights(builder.Configuration)
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.AddCustomMvc()
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.AddHealthChecks(builder.Configuration)
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.AddCustomDbContext(builder.Configuration)
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.AddCustomSwagger(builder.Configuration)
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.AddCustomAuthentication(builder.Configuration)
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.AddCustomAuthorization(builder.Configuration)
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.AddCustomIntegrations(builder.Configuration)
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.AddCustomConfiguration(builder.Configuration)
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.AddEventBus(builder.Configuration);
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builder.Host.UseServiceProviderFactory(new AutofacServiceProviderFactory());
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// Register your own things directly with Autofac here. Don't
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// call builder.Populate(), that happens in AutofacServiceProviderFactory
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// for you.
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builder.Host.ConfigureContainer<ContainerBuilder>(conbuilder => conbuilder.RegisterModule(new MediatorModule()));
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builder.Host.ConfigureContainer<ContainerBuilder>(conbuilder => conbuilder.RegisterModule(new ApplicationModule(builder.Configuration["ConnectionString"])));
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var app = builder.Build();
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if (app.Environment.IsDevelopment())
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{
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app.UseDeveloperExceptionPage();
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}
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else
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{
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app.UseExceptionHandler("/Home/Error");
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}
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var pathBase = app.Configuration["PATH_BASE"];
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if (!string.IsNullOrEmpty(pathBase))
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{
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app.UsePathBase(pathBase);
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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", "Ordering.API V1");
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c.OAuthClientId("orderingswaggerui");
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c.OAuthAppName("Ordering Swagger UI");
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});
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app.UseRouting();
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app.UseCors("CorsPolicy");
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app.UseAuthentication();
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app.UseAuthorization();
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app.MapGrpcService<OrderingService>();
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app.MapDefaultControllerRoute();
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app.MapControllers();
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app.MapGet("/_proto/", async ctx =>
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{
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ctx.Response.ContentType = "text/plain";
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using var fs = new FileStream(Path.Combine(app.Environment.ContentRootPath, "Proto", "basket.proto"), FileMode.Open, FileAccess.Read);
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using var sr = new StreamReader(fs);
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while (!sr.EndOfStream)
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{
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var line = await sr.ReadLineAsync();
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if (line != "/* >>" || line != "<< */")
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{
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await ctx.Response.WriteAsync(line);
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}
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}
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});
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app.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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app.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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ConfigureEventBus(app);
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try
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{
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Log.Information("Applying migrations ({ApplicationContext})...", Program.AppName);
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using var scope = app.Services.CreateScope();
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var context = scope.ServiceProvider.GetRequiredService<OrderingContext>();
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var env = app.Services.GetService<IWebHostEnvironment>();
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var settings = app.Services.GetService<IOptions<OrderingSettings>>();
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var logger = app.Services.GetService<ILogger<OrderingContextSeed>>();
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await context.Database.MigrateAsync();
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await new OrderingContextSeed().SeedAsync(context, env, settings, logger);
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var integEventContext = scope.ServiceProvider.GetRequiredService<IntegrationEventLogContext>();
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await integEventContext.Database.MigrateAsync();
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Log.Information("Starting web host ({ApplicationContext})...", Program.AppName);
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await app.RunAsync();
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return 0;
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}
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catch (Exception ex)
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{
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Log.Fatal(ex, "Program terminated unexpectedly ({ApplicationContext})!", Program.AppName);
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return 1;
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}
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finally
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{
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Log.CloseAndFlush();
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}
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void ConfigureEventBus(IApplicationBuilder app)
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{
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var eventBus = app.ApplicationServices.GetRequiredService<IEventBus>();
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eventBus.Subscribe<UserCheckoutAcceptedIntegrationEvent, IIntegrationEventHandler<UserCheckoutAcceptedIntegrationEvent>>();
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eventBus.Subscribe<GracePeriodConfirmedIntegrationEvent, IIntegrationEventHandler<GracePeriodConfirmedIntegrationEvent>>();
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eventBus.Subscribe<OrderStockConfirmedIntegrationEvent, IIntegrationEventHandler<OrderStockConfirmedIntegrationEvent>>();
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eventBus.Subscribe<OrderStockRejectedIntegrationEvent, IIntegrationEventHandler<OrderStockRejectedIntegrationEvent>>();
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eventBus.Subscribe<OrderPaymentFailedIntegrationEvent, IIntegrationEventHandler<OrderPaymentFailedIntegrationEvent>>();
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eventBus.Subscribe<OrderPaymentSucceededIntegrationEvent, IIntegrationEventHandler<OrderPaymentSucceededIntegrationEvent>>();
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}
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Serilog.ILogger CreateSerilogLogger(IConfiguration configuration)
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{
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var seqServerUrl = configuration["Serilog:SeqServerUrl"];
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var logstashUrl = configuration["Serilog:LogstashUrl"];
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return new LoggerConfiguration()
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.MinimumLevel.Verbose()
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.Enrich.WithProperty("ApplicationContext", Program.AppName)
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.Enrich.FromLogContext()
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.WriteTo.Console()
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.WriteTo.Seq(string.IsNullOrWhiteSpace(seqServerUrl) ? "http://seq" : seqServerUrl)
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.WriteTo.Http(string.IsNullOrWhiteSpace(logstashUrl) ? "http://logstash:8080" : logstashUrl, null)
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.ReadFrom.Configuration(configuration)
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.CreateLogger();
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}
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(int httpPort, int grpcPort) GetDefinedPorts(IConfiguration config)
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{
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var grpcPort = config.GetValue("GRPC_PORT", 5001);
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var port = config.GetValue("PORT", 80);
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return (port, grpcPort);
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}
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public partial class Program
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{
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public static string Namespace = typeof(Program).Assembly.GetName().Name;
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public static string AppName = Namespace.Substring(Namespace.LastIndexOf('.', Namespace.LastIndexOf('.') - 1) + 1);
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}
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static class CustomExtensionsMethods
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{
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public static IServiceCollection AddApplicationInsights(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 AddCustomMvc(this IServiceCollection services)
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{
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// Add framework services.
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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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// Added for functional tests
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.AddApplicationPart(typeof(OrdersController).Assembly)
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.AddJsonOptions(options => options.JsonSerializerOptions.WriteIndented = true);
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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 AddHealthChecks(this IServiceCollection services, IConfiguration configuration)
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{
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var hcBuilder = services.AddHealthChecks();
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hcBuilder.AddCheck("self", () => HealthCheckResult.Healthy());
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hcBuilder
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.AddSqlServer(
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configuration["ConnectionString"],
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name: "OrderingDB-check",
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tags: new string[] { "orderingdb" });
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if (configuration.GetValue<bool>("AzureServiceBusEnabled"))
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{
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hcBuilder
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.AddAzureServiceBusTopic(
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configuration["EventBusConnection"],
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topicName: "eshop_event_bus",
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name: "ordering-servicebus-check",
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tags: new string[] { "servicebus" });
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}
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else
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{
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hcBuilder
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.AddRabbitMQ(
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$"amqp://{configuration["EventBusConnection"]}",
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name: "ordering-rabbitmqbus-check",
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tags: new string[] { "rabbitmqbus" });
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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.AddDbContext<OrderingContext>(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(Program).GetTypeInfo().Assembly.GetName().Name);
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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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ServiceLifetime.Scoped //Showing explicitly that the DbContext is shared across the HTTP request scope (graph of objects started in the HTTP request)
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);
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services.AddDbContext<IntegrationEventLogContext>(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(Program).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 AddCustomSwagger(this IServiceCollection services, IConfiguration configuration)
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{
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services.AddSwaggerGen(options =>
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{
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options.SwaggerDoc("v1", new OpenApiInfo
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{
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Title = "eShopOnContainers - Ordering HTTP API",
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Version = "v1",
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Description = "The Ordering Service HTTP API"
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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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{ "orders", "Ordering 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 AddCustomIntegrations(this IServiceCollection services, IConfiguration configuration)
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{
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services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();
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services.AddTransient<IIdentityService, IdentityService>();
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services.AddTransient<Func<DbConnection, IIntegrationEventLogService>>(
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sp => (DbConnection c) => new IntegrationEventLogService(c));
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services.AddTransient<IOrderingIntegrationEventService, OrderingIntegrationEventService>();
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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 serviceBusConnectionString = configuration["EventBusConnection"];
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var subscriptionClientName = configuration["SubscriptionClientName"];
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return new DefaultServiceBusPersisterConnection(serviceBusConnectionString);
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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 AddCustomConfiguration(this IServiceCollection services, IConfiguration configuration)
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{
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services.AddOptions();
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services.Configure<OrderingSettings>(configuration);
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services.Configure<ApiBehaviorOptions>(options =>
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{
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options.InvalidModelStateResponseFactory = context =>
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{
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var problemDetails = new ValidationProblemDetails(context.ModelState)
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{
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Instance = context.HttpContext.Request.Path,
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Status = StatusCodes.Status400BadRequest,
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Detail = "Please refer to the errors property for additional details."
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};
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return new BadRequestObjectResult(problemDetails)
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{
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ContentTypes = { "application/problem+json", "application/problem+xml" }
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};
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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 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 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, sp, 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 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, sp, eventBusSubcriptionsManager, subscriptionClientName, retryCount);
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});
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}
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services.AddSingleton<IEventBusSubscriptionsManager, InMemoryEventBusSubscriptionsManager>();
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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("Bearer").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 = "orders";
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options.TokenValidationParameters.ValidateAudience = false;
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});
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return services;
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}
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public static IServiceCollection AddCustomAuthorization(this IServiceCollection services, IConfiguration configuration)
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{
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services.AddAuthorization(options =>
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{
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options.AddPolicy("ApiScope", policy =>
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{
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policy.RequireAuthenticatedUser();
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policy.RequireClaim("scope", "orders");
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});
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});
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return services;
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}
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}
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