■ HttpClient 클래스를 사용해 POST 요청 열거 가능형을 구하는 방법을 보여준다.
▶ 예제 코드 (C#)
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using System; using System.Collections.Generic; using System.Net; using System.Net.Http; using System.Net.Http.Headers; using System.Threading.Tasks; #region POST 요청 열거 가능형 구하기 (비동기) - GetPOSTRequestEnumerableAsync<T>(url, tokenSchema, token, input) /// <summary> /// POST 요청 열거 가능형 구하기 (비동기) /// </summary> /// <typeparam name="TItem">항목 타입</typeparam> /// <param name="url">URL</param> /// <param name="tokenSchema">토큰 스키마</param> /// <param name="token">토큰</param> /// <param name="input">입력 객체</param> /// <returns>POST 요청 열거 가능형 태스크</returns> public async Task<IEnumerable<TItem>> GetPOSTRequestEnumerableAsync<TItem>(string url, string tokenSchema, string token, object input) { IEnumerable<TItem> resultEnumerable = await GetPOSTRequestObjectAsync<IEnumerable<TItem>>(url, tokenSchema, token, input); return resultEnumerable; } #endregion #region POST 요청 열거 가능형 구하기 (비동기) - GetPOSTRequestEnumerableAsync<T>(url, token, input) /// <summary> /// POST 요청 열거 가능형 구하기 (비동기) /// </summary> /// <typeparam name="TItem">항목 타입</typeparam> /// <param name="url">URL</param> /// <param name="token">토큰</param> /// <param name="input">입력 객체</param> /// <returns>POST 요청 열거 가능형 태스크</returns> public async Task<IEnumerable<TItem>> GetPOSTRequestEnumerableAsync<TItem>(string url, string token, object input) { IEnumerable<TItem> resultEnumerable = await GetPOSTRequestObjectAsync<IEnumerable<TItem>>(url, "Bearer", token, input); return resultEnumerable; } #endregion #region POST 요청 객체 구하기 (비동기) - GetPOSTRequestObjectAsync<TObject>(url, tokenSchema, token, input) /// <summary> /// POST 요청 객체 구하기 (비동기) /// </summary> /// <typeparam name="TObject">객체 타입</typeparam> /// <param name="url">URL</param> /// <param name="tokenSchema">토큰 스키마</param> /// <param name="token">토큰</param> /// <param name="input">입력 객체</param> /// <returns>POST 요청 객체 태스크</returns> private async Task<TObject> GetPOSTRequestObjectAsync<TObject>(string url, string tokenSchema, string token, object input) { using HttpClient client = GetHTTPClient(false, url, tokenSchema, token); HttpResponseMessage response = await client.PostAsJsonAsync(url, input); if(response.IsSuccessStatusCode) { TObject result = await response.Content.ReadAsAsync<TObject>(); return result; } else { string finalURL = response.RequestMessage.RequestUri.AbsoluteUri; if(finalURL != url) { response = await client.PostAsJsonAsync(finalURL, input); if(response.IsSuccessStatusCode) { TObject result = await response.Content.ReadAsAsync<TObject>(); return result; } else { return default; } } else { return default; } } } #endregion #region POST 요청 객체 구하기 (비동기) - GetPOSTRequestObjectAsync<TObject>(url, token, input) /// <summary> /// POST 요청 객체 구하기 (비동기) /// </summary> /// <typeparam name="TObject">객체 타입</typeparam> /// <param name="url">URL</param> /// <param name="token">토큰</param> /// <param name="input">입력 객체</param> /// <returns>POST 요청 객체 태스크</returns> private async Task<TObject> GetPOSTRequestObjectAsync<TObject>(string url, string token, object input) { TObject result = await GetPOSTRequestObjectAsync<TObject>(url, "Bearer", token, input); return result; } #endregion #region HTTP 클라이언트 구하기 - GetHTTPClient(useCookie, baseAddress, tokenShema, token) /// <summary> /// HTTP 클라이언트 구하기 /// </summary> /// <param name="useCookie">쿠키 사용 여부</param> /// <param name="baseAddress">기본 주소</param> /// <param name="tokenShema">토큰 스키마</param> /// <param name="token">토큰</param> /// <returns>HTTP 클라이언트</returns> private HttpClient GetHTTPClient(bool useCookie, string baseAddress, string tokenShema, string token) { HttpClient client; if(useCookie) { HttpClientHandler httpClientHandler = new HttpClientHandler(); httpClientHandler.UseCookies = true; httpClientHandler.CookieContainer = new CookieContainer(); client = new HttpClient(httpClientHandler); } else { client = new HttpClient(); } client.DefaultRequestHeaders.Accept.Clear(); client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); if(!string.IsNullOrWhiteSpace(baseAddress)) { client.BaseAddress = new Uri(baseAddress); } if(!string.IsNullOrWhiteSpace(tokenShema)) { client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue(tokenShema, token); } return client; } #endregion |