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Startup.cs
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Startup.cs
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using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Authentication.OpenIdConnect;
namespace Microsoft.eShopOnContainers.Services.Basket.API;
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public virtual IServiceProvider ConfigureServices(IServiceCollection services)
{
services.AddGrpc(options =>
{
options.EnableDetailedErrors = true;
});
RegisterAppInsights(services);
services.AddControllers(options =>
{
options.Filters.Add(typeof(HttpGlobalExceptionFilter));
options.Filters.Add(typeof(ValidateModelStateFilter));
}) // Added for functional tests
.AddApplicationPart(typeof(BasketController).Assembly)
.AddJsonOptions(options => options.JsonSerializerOptions.WriteIndented = true);
services.AddSwaggerGen(options =>
{
options.SwaggerDoc("v1", new OpenApiInfo
{
Title = "eShopOnContainers - Basket HTTP API",
Version = "v1",
Description = "The Basket Service HTTP API"
});
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>()
{
{ "basket", "Basket API" }
}
}
}
});
options.OperationFilter<AuthorizeCheckOperationFilter>();
});
ConfigureAuthService(services);
services.AddCustomHealthCheck(Configuration);
services.Configure<BasketSettings>(Configuration);
//By connecting here we are making sure that our service
//cannot start until redis is ready. This might slow down startup,
//but given that there is a delay on resolving the ip address
//and then creating the connection it seems reasonable to move
//that cost to startup instead of having the first request pay the
//penalty.
services.AddSingleton<ConnectionMultiplexer>(sp =>
{
var settings = sp.GetRequiredService<IOptions<BasketSettings>>().Value;
var configuration = ConfigurationOptions.Parse(settings.ConnectionString, true);
return ConnectionMultiplexer.Connect(configuration);
});
if (Configuration.GetValue<bool>("AzureServiceBusEnabled"))
{
services.AddSingleton<IServiceBusPersisterConnection>(sp =>
{
var serviceBusConnectionString = Configuration["EventBusConnection"];
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);
});
}
RegisterEventBus(services);
services.AddCors(options =>
{
options.AddPolicy("CorsPolicy",
builder => builder
.SetIsOriginAllowed((host) => true)
.AllowAnyMethod()
.AllowAnyHeader()
.AllowCredentials());
});
services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();
services.AddTransient<IBasketRepository, RedisBasketRepository>();
services.AddTransient<IIdentityService, IdentityService>();
services.AddOptions();
var container = new ContainerBuilder();
container.Populate(services);
return new AutofacServiceProvider(container.Build());
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
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))
{
app.UsePathBase(pathBase);
}
app.UseSwagger()
.UseSwaggerUI(setup =>
{
setup.SwaggerEndpoint($"{ (!string.IsNullOrEmpty(pathBase) ? pathBase : string.Empty) }/swagger/v1/swagger.json", "Basket.API V1");
setup.OAuthClientId("basketswaggerui");
setup.OAuthAppName("Basket Swagger UI");
});
app.UseRouting();
app.UseCors("CorsPolicy");
ConfigureAuth(app);
app.UseStaticFiles();
app.UseEndpoints(endpoints =>
{
endpoints.MapGrpcService<BasketService>();
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 RegisterAppInsights(IServiceCollection services)
{
services.AddApplicationInsightsTelemetry(Configuration);
services.AddApplicationInsightsKubernetesEnricher();
}
private void ConfigureAuthService(IServiceCollection services)
{
// prevent from mapping "sub" claim to nameidentifier.
JwtSecurityTokenHandler.DefaultInboundClaimTypeMap.Remove("sub");
var identityUrl = Configuration.GetValue<string>("IdentityUrl");
services.AddAuthentication("Bearer").AddJwtBearer(options =>
{
options.Authority = identityUrl;
options.RequireHttpsMetadata = false;
options.Audience = "basket";
options.TokenValidationParameters.ValidateAudience = false;
});
services.AddAuthorization(options =>
{
options.AddPolicy("ApiScope", policy =>
{
policy.RequireAuthenticatedUser();
policy.RequireClaim("scope", "basket");
});
});
}
protected virtual void ConfigureAuth(IApplicationBuilder app)
{
app.UseAuthentication();
app.UseAuthorization();
}
private void RegisterEventBus(IServiceCollection services)
{
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 eventBusSubscriptionsManager = sp.GetRequiredService<IEventBusSubscriptionsManager>();
string subscriptionName = Configuration["SubscriptionClientName"];
return new EventBusServiceBus(serviceBusPersisterConnection, logger,
eventBusSubscriptionsManager, 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 eventBusSubscriptionsManager = sp.GetRequiredService<IEventBusSubscriptionsManager>();
var retryCount = 5;
if (!string.IsNullOrEmpty(Configuration["EventBusRetryCount"]))
{
retryCount = int.Parse(Configuration["EventBusRetryCount"]);
}
return new EventBusRabbitMQ(rabbitMQPersistentConnection, logger, iLifetimeScope, eventBusSubscriptionsManager, subscriptionClientName, retryCount);
});
}
services.AddSingleton<IEventBusSubscriptionsManager, InMemoryEventBusSubscriptionsManager>();
services.AddTransient<ProductPriceChangedIntegrationEventHandler>();
services.AddTransient<OrderStartedIntegrationEventHandler>();
}
private void ConfigureEventBus(IApplicationBuilder app)
{
var eventBus = app.ApplicationServices.GetRequiredService<IEventBus>();
eventBus.Subscribe<ProductPriceChangedIntegrationEvent, ProductPriceChangedIntegrationEventHandler>();
eventBus.Subscribe<OrderStartedIntegrationEvent, OrderStartedIntegrationEventHandler>();
}
}