■ IHttpClientFactory 인터페이스의 CreateClient 메소드를 사용해 명명된 HttpClient 객체를 생성하는 방법을 보여준다.
▶ Startup.cs
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using Microsoft.AspNetCore.Builder; using Microsoft.AspNetCore.Hosting; using Microsoft.Extensions.DependencyInjection; using Microsoft.Extensions.Hosting; using System; namespace TestClient { /// <summary> /// 시작 /// </summary> public class Startup { //////////////////////////////////////////////////////////////////////////////////////////////////// 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.AddAuthentication ( options => { options.DefaultScheme = "Cookie"; options.DefaultChallengeScheme = "oidc"; } ) .AddCookie("Cookie") .AddOpenIdConnect ( "oidc", options => { options.Authority = "https://localhost:44300/"; options.ClientId = "CLIENTID0003"; options.ClientSecret = "CLIENTSECRET0003"; options.SaveTokens = true; options.ResponseType = "code"; options.Scope.Add("openid"); options.Scope.Add("profile"); options.Scope.Add("API1" ); } ); services.AddHttpClient ( "TestAPIServer1", options => { options.BaseAddress = new Uri("https://localhost:44310/"); options.DefaultRequestHeaders.Add("User-Agent", "HttpClientFactory-Sample"); } ); 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) { if(environment.IsDevelopment()) { app.UseDeveloperExceptionPage(); } app.UseRouting(); app.UseAuthentication(); app.UseAuthorization(); app.UseEndpoints ( endpoints => { endpoints.MapDefaultControllerRoute(); } ); } #endregion } } |
▶ Controllers/HomeController.cs
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using Microsoft.AspNetCore.Authentication; using Microsoft.AspNetCore.Authorization; using Microsoft.AspNetCore.Mvc; using System.IdentityModel.Tokens.Jwt; using System.Net.Http; using System.Threading.Tasks; using IdentityModel.Client; namespace TestClient.Controllers { /// <summary> /// 홈 컨트롤러 /// </summary> public class HomeController : Controller { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// HTTP 클라이언트 팩토리 /// </summary> private readonly IHttpClientFactory factory; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - HomeController(factory) /// <summary> /// 생성자 /// </summary> /// <param name="factory">HTTP 클라이언트 팩토리</param> public HomeController(IHttpClientFactory factory) { this.factory = factory; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 인덱스 페이지 처리하기 - Index() /// <summary> /// 인덱스 페이지 처리하기 /// </summary> /// <returns>액션 결과</returns> public IActionResult Index() { return View(); } #endregion #region 비밀 페이지 처리하기 - Secret() /// <summary> /// 비밀 페이지 처리하기 /// </summary> /// <returns>액션 결과</returns> [Authorize] public async Task<IActionResult> Secret() { string accessToken = await HttpContext.GetTokenAsync("access_token"); JwtSecurityToken accessJwtSecurityToken = new JwtSecurityTokenHandler().ReadJwtToken(accessToken); string secret = await GetSecret(accessToken); ViewData["Secret"] = secret; return View(); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 비밀 구하기 - GetSecret(accessToken) /// <summary> /// 비밀 구하기 /// </summary> /// <param name="accessToken">액세스 토큰</param> /// <returns>비밀</returns> public async Task<string> GetSecret(string accessToken) { HttpClient apiClient = this.factory.CreateClient("TestAPIServer1"); apiClient.SetBearerToken(accessToken); HttpResponseMessage apiResponse = await apiClient.GetAsync("secret"); string content = await apiResponse.Content.ReadAsStringAsync(); return content; } #endregion } } |