■ MapWhenExtensions 클래스의 MapWhen 확장 메소드를 사용해 조건을 만족하는 요청 경로에 대해 미들웨어 파이프라인을 분기하는 방법을 보여준다.
▶ Startup.cs
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using Microsoft.AspNetCore.Builder; using Microsoft.AspNetCore.Hosting; using Microsoft.AspNetCore.Http; using Microsoft.Extensions.Configuration; using Microsoft.Extensions.DependencyInjection; using Microsoft.Extensions.Hosting; using Microsoft.Extensions.Primitives; namespace TestProject { /// <summary> /// 시작 /// </summary> public class Startup { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 구성 - Configuration /// <summary> /// 구성 /// </summary> public IConfiguration Configuration { get; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - Startup(configuration) /// <summary> /// 생성자 /// </summary> /// <param name="configuration">구성</param> public Startup(IConfiguration configuration) { Configuration = configuration; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 서비스 컬렉션 구성하기 - ConfigureServices(services) /// <summary> /// 서비스 컬렉션 구성하기 /// </summary> /// <param name="services">서비스 컬렉션</param> public void ConfigureServices(IServiceCollection services) { services.AddControllersWithViews(); } #endregion #region 구성하기 - Configure(app, environment) /// <summary> /// 구성하기 /// </summary> /// <param name="app">애플리케이션 빌더</param> /// <param name="environment">웹 호스트 환경</param> public void Configure(IApplicationBuilder app, IWebHostEnvironment environment) { app.MapWhen ( context => context.Request.Query.ContainsKey("branch"), ProcessRequestPath ); app.Run ( async context => { await context.Response.WriteAsync("Hello from non-Map delegate."); } ); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 요청 경로 처리하기 - ProcessRequestPath(app) /// <summary> /// 요청 경로 처리하기 /// </summary> /// <param name="app">애플리케이션 빌더</param> private void ProcessRequestPath(IApplicationBuilder app) { app.Run ( async context => { StringValues branchStringValues = context.Request.Query["branch"]; await context.Response.WriteAsync($"Branch used = {branchStringValues}"); } ); } #endregion } } |
