From cc92f80a45a834b5474f0af52e97ad5b9d026fe6 Mon Sep 17 00:00:00 2001
From: DucDangAnh <ducdanganhit@gmail.com>
Date: Mon, 29 Jun 2020 15:19:36 +0700
Subject: [PATCH] Util - use static HttpClient httpClientEngine as field.

---
 AIParkingApplication/Util.cs | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/AIParkingApplication/Util.cs b/AIParkingApplication/Util.cs
index 9195211..20d8ead 100644
--- a/AIParkingApplication/Util.cs
+++ b/AIParkingApplication/Util.cs
@@ -10,6 +10,8 @@ namespace AIParkingApplication
 {
     public static class Util
     {
+        private static HttpClient httpClientEngine = new HttpClient { BaseAddress = new Uri("http://localhost:8080/"), Timeout = TimeSpan.FromMilliseconds(5000) };
+
         public static bool IsPingable(string destinationIPAddress, out long pingTime, int timeOut = UtilConstant.PING_TIMEOUT_MS)
         {
             var pingTask = Task.Factory.StartNew(async () =>
@@ -55,19 +57,16 @@ namespace AIParkingApplication
             string plateImageBase64 = Convert.ToBase64String(plateImage.ToBytes());
             try
             {
-                using (var client = new HttpClient { BaseAddress = new Uri("http://localhost:8080/"), Timeout = TimeSpan.FromMilliseconds(5000) })
+                var request = new PlateRequestEngineModel
                 {
-                    var request = new PlateRequestEngineModel
-                    {
-                        Img64 = plateImageBase64,
-                        Mode = plateType == PlateType.Square ? "square" : "long",
-                        Display = "full"
-                    };
-                    HttpResponseMessage response = await client.PostAsJsonAsync("/get-from-frame", request);
-                    response.EnsureSuccessStatusCode();
-                    var ocrResult = await response.Content.ReadAsAsync<OcrResult>();
-                    return ocrResult;
-                }
+                    Img64 = plateImageBase64,
+                    Mode = plateType == PlateType.Square ? "square" : "long",
+                    Display = "full"
+                };
+                HttpResponseMessage response = await httpClientEngine.PostAsJsonAsync("/get-from-frame", request);
+                response.EnsureSuccessStatusCode();
+                var ocrResult = await response.Content.ReadAsAsync<OcrResult>();
+                return ocrResult;
             }
             catch (Exception ex)
             {