[성현모] VPKI 페이징, csv 다운로드 수정

Projects/SystemX.Core/SystemX.Core/Communication/Http.cs

@@ -95,6 +95,40 @@ namespace SystemX.Core.Communication
             return response;
         }
 
+        public virtual async Task<Stream?> GetStreamAsync(string url, string bearerToken = "", short timeOutSeconds = 10)
+        {           
+            Guid guid = Guid.NewGuid();
+
+            Stream stream = null;
+
+            using (HttpClient httpClient = new HttpClient(GetClientHandler()))
+            {
+                try
+                {
+                    var timeOutSec = SetTimeout(timeOutSeconds);
+                    httpClient.Timeout = new TimeSpan(0, 0, timeOutSec);
+                    httpClient.BaseAddress = new Uri($"{url}");
+
+                    if (string.IsNullOrEmpty(bearerToken) == false)
+                        httpClient.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", $"{bearerToken}");
+
+                    Log4net.WriteLine($"[GET] Request({guid})::{url}", LogType.HTTP);
+
+                    DateTime requestTime = DateTime.Now;
+                    var response = await httpClient.GetAsync(url);
+                    stream = await response.Content.ReadAsStreamAsync();
+
+                    Log4net.WriteLine($"[GET] Rseponse({guid}) ({(DateTime.Now - requestTime).TotalSeconds} sec)::{url}", LogType.HTTP);
+                }
+                catch (Exception e)
+                {
+                    Log4net.WriteLine(e);
+                }
+            }
+
+            return stream;
+        }
+
 
         protected HttpClientHandler GetClientHandler()
         {