349 lines
14 KiB
C#
349 lines
14 KiB
C#
using Autofac;
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using Autofac.Extensions.DependencyInjection;
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using Basket.API.Infrastructure.Filters;
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using Basket.API.Infrastructure.Middlewares;
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using Basket.API.IntegrationEvents.EventHandling;
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using Basket.API.IntegrationEvents.Events;
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using HealthChecks.UI.Client;
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using Microsoft.AspNetCore.Authentication.JwtBearer;
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using Microsoft.AspNetCore.Builder;
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using Microsoft.AspNetCore.Diagnostics.HealthChecks;
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using Microsoft.AspNetCore.Hosting;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.Azure.ServiceBus;
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using Microsoft.eShopOnContainers.BuildingBlocks.EventBus;
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using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Abstractions;
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using Microsoft.eShopOnContainers.BuildingBlocks.EventBusRabbitMQ;
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using Microsoft.eShopOnContainers.BuildingBlocks.EventBusServiceBus;
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using Microsoft.eShopOnContainers.Services.Basket.API.Infrastructure.Repositories;
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using Microsoft.eShopOnContainers.Services.Basket.API.IntegrationEvents.EventHandling;
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using Microsoft.eShopOnContainers.Services.Basket.API.IntegrationEvents.Events;
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using Microsoft.eShopOnContainers.Services.Basket.API.Model;
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using Microsoft.eShopOnContainers.Services.Basket.API.Services;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Diagnostics.HealthChecks;
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using Microsoft.Extensions.Logging;
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using Microsoft.Extensions.Options;
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using RabbitMQ.Client;
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using StackExchange.Redis;
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using System;
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using System.Collections.Generic;
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using System.IdentityModel.Tokens.Jwt;
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namespace Microsoft.eShopOnContainers.Services.Basket.API
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{
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public class Startup
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{
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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 IConfiguration Configuration { get; }
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// This method gets called by the runtime. Use this method to add services to the container.
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public IServiceProvider ConfigureServices(IServiceCollection services)
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{
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RegisterAppInsights(services);
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// Add framework services.
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services.AddMvc(options =>
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{
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options.Filters.Add(typeof(HttpGlobalExceptionFilter));
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options.Filters.Add(typeof(ValidateModelStateFilter));
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})
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.SetCompatibilityVersion(CompatibilityVersion.Version_3_0)
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.AddControllersAsServices();
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ConfigureAuthService(services);
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services.AddCustomHealthCheck(Configuration);
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services.Configure<BasketSettings>(Configuration);
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//By connecting here we are making sure that our service
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//cannot start until redis is ready. This might slow down startup,
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//but given that there is a delay on resolving the ip address
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//and then creating the connection it seems reasonable to move
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//that cost to startup instead of having the first request pay the
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//penalty.
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services.AddSingleton<ConnectionMultiplexer>(sp =>
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{
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var settings = sp.GetRequiredService<IOptions<BasketSettings>>().Value;
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var configuration = ConfigurationOptions.Parse(settings.ConnectionString, true);
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configuration.ResolveDns = true;
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return ConnectionMultiplexer.Connect(configuration);
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});
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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 logger = sp.GetRequiredService<ILogger<DefaultServiceBusPersisterConnection>>();
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var serviceBusConnectionString = Configuration["EventBusConnection"];
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var serviceBusConnection = new ServiceBusConnectionStringBuilder(serviceBusConnectionString);
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return new DefaultServiceBusPersisterConnection(serviceBusConnection, logger);
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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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RegisterEventBus(services);
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services.AddSwaggerGen(options =>
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{
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options.DescribeAllEnumsAsStrings();
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options.SwaggerDoc("v1", new OpenApi.Models.OpenApiInfo
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{
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Title = "Basket HTTP API",
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Version = "v1",
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Description = "The Basket Service HTTP API"
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});
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options.AddSecurityDefinition("oauth2", new OpenApi.Models.OpenApiSecurityScheme
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{
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Flows = new OpenApi.Models.OpenApiOAuthFlows()
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{
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Implicit = new OpenApi.Models.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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{ "basket", "Basket API" }
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}
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}
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}
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});
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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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services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();
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services.AddTransient<IBasketRepository, RedisBasketRepository>();
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services.AddTransient<IIdentityService, IdentityService>();
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services.AddOptions();
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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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// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
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public void Configure(IApplicationBuilder app, IWebHostEnvironment env, ILoggerFactory loggerFactory)
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{
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//loggerFactory.AddAzureWebAppDiagnostics();
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//loggerFactory.AddApplicationInsights(app.ApplicationServices, LogLevel.Trace);
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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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app.UsePathBase(pathBase);
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}
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app.UseStaticFiles();
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app.UseCors("CorsPolicy");
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ConfigureAuth(app);
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app.UseRouting();
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app.UseEndpoints(endpoints =>
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{
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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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endpoints.MapDefaultControllerRoute();
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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", "Basket.API V1");
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c.OAuthClientId("basketswaggerui");
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c.OAuthAppName("Basket Swagger UI");
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});
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ConfigureEventBus(app);
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}
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private void RegisterAppInsights(IServiceCollection services)
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{
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services.AddApplicationInsightsTelemetry(Configuration);
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services.AddApplicationInsightsKubernetesEnricher();
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}
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private void ConfigureAuthService(IServiceCollection services)
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{
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// prevent from mapping "sub" claim to nameidentifier.
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JwtSecurityTokenHandler.DefaultInboundClaimTypeMap.Clear();
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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 = "basket";
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});
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}
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protected virtual void ConfigureAuth(IApplicationBuilder app)
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{
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if (Configuration.GetValue<bool>("UseLoadTest"))
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{
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app.UseMiddleware<ByPassAuthMiddleware>();
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}
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app.UseAuthentication();
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app.UseAuthorization();
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}
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private void RegisterEventBus(IServiceCollection services)
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{
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var subscriptionClientName = Configuration["SubscriptionClientName"];
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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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return new EventBusServiceBus(serviceBusPersisterConnection, logger,
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eventBusSubcriptionsManager, subscriptionClientName, iLifetimeScope);
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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 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<OrderStartedIntegrationEventHandler>();
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}
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private 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<OrderStartedIntegrationEvent, OrderStartedIntegrationEventHandler>();
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}
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}
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public static class CustomExtensionMethods
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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 hcBuilder = services.AddHealthChecks();
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hcBuilder.AddCheck("self", () => HealthCheckResult.Healthy());
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hcBuilder
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.AddRedis(
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configuration["ConnectionString"],
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name: "redis-check",
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tags: new string[] { "redis" });
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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: "basket-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: "basket-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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}
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}
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