diff --git a/src/Api/PubnubApi/Pubnub.cs b/src/Api/PubnubApi/Pubnub.cs
index 13bdcaf6..23fda596 100644
--- a/src/Api/PubnubApi/Pubnub.cs
+++ b/src/Api/PubnubApi/Pubnub.cs
@@ -958,7 +958,7 @@ public void SetJsonPluggableLibrary(IJsonPluggableLibrary customJson)
         #endregion
 
         #region "Constructors"
-        public Pubnub(PNConfiguration config)
+        public Pubnub(PNConfiguration config, IHttpClientService httpTransportService = default, ITransportMiddleware middleware = default)
         {
             if (config == null)
             {
@@ -995,8 +995,8 @@ public Pubnub(PNConfiguration config)
             CheckRequiredUserId(config);
             eventEmitter = new EventEmitter(pubnubConfig.ContainsKey(InstanceId) ? pubnubConfig[InstanceId] : null, subscribeCallbackListenerList, JsonPluggableLibrary, tokenManager, pubnubLog, this);
             CheckCryptoModuleUsageForLogging(config);
-            IHttpClientService httpClientService = new HttpClientService(config.Proxy);
-            transportMiddleware = new Middleware(httpClientService,config, this, tokenManager);
+            IHttpClientService httpClientService = httpTransportService ?? new HttpClientService(proxy:config.Proxy, pubnubLog: config.PubnubLog, verbosity: config.LogVerbosity);
+            transportMiddleware = middleware ?? new Middleware(httpClientService,config, this, tokenManager);
         }
         
         #if UNITY
diff --git a/src/Api/PubnubApi/Transport/HttpClientService.cs b/src/Api/PubnubApi/Transport/HttpClientService.cs
index d48e0f1b..4abc4fc6 100644
--- a/src/Api/PubnubApi/Transport/HttpClientService.cs
+++ b/src/Api/PubnubApi/Transport/HttpClientService.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Globalization;
 using System.Net.Http;
 using System.Threading.Tasks;
 using System.Linq;
@@ -11,7 +12,9 @@ namespace PubnubApi
 	public class HttpClientService : IHttpClientService
 	{
 		private readonly HttpClient httpClient;
-		public HttpClientService(IWebProxy proxy = default)
+		private IPubnubLog Log { get; set; }
+		private PNLogVerbosity LogVerbosity { get; set; }
+		public HttpClientService(IWebProxy proxy = default, IPubnubLog pubnubLog = default, PNLogVerbosity verbosity = default)
 		{
 			httpClient = new HttpClient()
 			{
@@ -24,6 +27,8 @@ public HttpClientService(IWebProxy proxy = default)
 				UseProxy = true
 			});
 			httpClient.Timeout = Timeout.InfiniteTimeSpan;
+			Log = pubnubLog;
+			LogVerbosity = verbosity;
 		}
 
 		public async Task<TransportResponse> GetRequest(TransportRequest transportRequest)
@@ -44,10 +49,11 @@ public async Task<TransportResponse> GetRequest(TransportRequest transportReques
 					Headers = httpResult.Headers.ToDictionary(h => h.Key, h => h.Value),
 					RequestUrl = httpResult.RequestMessage?.RequestUri?.AbsolutePath
 				};
-			} catch (Exception ex) {
+			} catch (Exception e) {
+				LoggingMethod.WriteToLog(Log, $"{DateTime.Now.ToString(CultureInfo.InvariantCulture)}: Exception for http call url {transportRequest.RequestUrl}, exception message: {e.Message}, stacktrace: {e.StackTrace}", LogVerbosity);
 				response = new TransportResponse() {
 					RequestUrl = transportRequest.RequestUrl,
-					Error = ex
+					Error = e
 				};
 			}
 			return response;
@@ -80,6 +86,7 @@ public async Task<TransportResponse> PostRequest(TransportRequest transportReque
 					RequestUrl = httpResult.RequestMessage?.RequestUri?.AbsolutePath
 				};
 			} catch (Exception e) {
+				LoggingMethod.WriteToLog(Log, $"{DateTime.Now.ToString(CultureInfo.InvariantCulture)}: Exception for http call url {transportRequest.RequestUrl}, exception message: {e.Message}, stacktrace: {e.StackTrace}", LogVerbosity);
 				transportResponse = new TransportResponse() {
 					RequestUrl = transportRequest.RequestUrl,
 					Error = e
@@ -132,6 +139,7 @@ public async Task<TransportResponse> PutRequest(TransportRequest transportReques
 			}
 			catch (Exception e)
 			{
+				LoggingMethod.WriteToLog(Log, $"{DateTime.Now.ToString(CultureInfo.InvariantCulture)}: Exception for http call url {transportRequest.RequestUrl}, exception message: {e.Message}, stacktrace: {e.StackTrace}", LogVerbosity);
 				transportResponse = new TransportResponse() {
 					RequestUrl = transportRequest.RequestUrl,
 					Error = e
@@ -159,10 +167,11 @@ public async Task<TransportResponse> DeleteRequest(TransportRequest transportReq
 					Headers = httpResult.Headers.ToDictionary(h => h.Key, h => h.Value),
 					RequestUrl = httpResult.RequestMessage?.RequestUri?.AbsolutePath
 				};
-			} catch (Exception ex) {
+			} catch (Exception e) {
+				LoggingMethod.WriteToLog(Log, $"{DateTime.Now.ToString(CultureInfo.InvariantCulture)}: Exception for http call url {transportRequest.RequestUrl}, exception message: {e.Message}, stacktrace: {e.StackTrace}", LogVerbosity);
 				response = new TransportResponse() {
 					RequestUrl = transportRequest.RequestUrl,
-					Error = ex
+					Error = e
 				};
 			}
 			return response;
@@ -213,6 +222,7 @@ public async Task<TransportResponse> PatchRequest(TransportRequest transportRequ
 			}
 			catch (Exception e)
 			{
+				LoggingMethod.WriteToLog(Log, $"{DateTime.Now.ToString(CultureInfo.InvariantCulture)}: Exception for http call url {transportRequest.RequestUrl}, exception message: {e.Message}, stacktrace: {e.StackTrace}", LogVerbosity);
 				transportResponse = new TransportResponse() {
 					RequestUrl = transportRequest.RequestUrl,
 					Error = e