How to rectify the delay occuring during htptwebrequest and httpwebresponse communication in C# ?

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I want to rectify the delay occurring during htptwebrequest and httpwebresponse communication in c# . I am using windows service .I am using Soap UI and its a Web Service API calls. I am getting a delay of nearly 30 seconds while doing the posting to Core Server. I am doing the communication over TLS 1.2 server. Hence while doing core transactions for large records huge delay is occurring.

What I have tried:

My code is as below:

public bool CORE_FT_Posting(ref CORE_Transaction_Queue objCORE_Transaction_Queue, ref string Response)
        {


            string result = string.Empty;

            bool isPostSuccess = false;


            string Request = objCORE_Transaction_Queue.RequestXML;
            string PostingType = objCORE_Transaction_Queue.COREPostingType;
            string FileID = objCORE_Transaction_Queue.InternalFileID;
            string FundTransferUrl = Common.FundTransferURL;

            try
            {

                //LogCORE("CorePosting Started - FT T24 for Posting Type : " + PostingType + " for FileID : " + FileID + "for CB Message Type: " + objCORE_Transaction_Queue.CBMessageType, 4);
                LogCORE("CorePosting Started", 4);
                CertificateOverride oCertOverride = new CertificateOverride();
                ServicePointManager.ServerCertificateValidationCallback = oCertOverride.RemoteCertificateValidationCallback;

                //ServicePointManager.Expect100Continue = false ;
                //ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;


                //const SslProtocols _Tls12 = (SslProtocols)0x00000C00;
                //const SecurityProtocolType Tls12 = (SecurityProtocolType)_Tls12;
                //ServicePointManager.SecurityProtocol = Tls12;


                //Added by Alex on 19.8.2020 for setting as in Client level code Start
                ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls
                | SecurityProtocolType.Tls11
                | SecurityProtocolType.Tls12
                | SecurityProtocolType.Ssl3;

                ServicePointManager.UseNagleAlgorithm = false;
                ServicePointManager.Expect100Continue = false;
                ServicePointManager.CheckCertificateRevocationList = false;
                ServicePointManager.DefaultConnectionLimit = 4;
                 //Added by Alex on 19.8.2020 for setting as in Client level code End

                //LogCORE("Creating HttpWebRequest Request headers started - FT T24 for Posting Type : " + PostingType + " for FileID : " + FileID + "for CB Message Type: " + objCORE_Transaction_Queue.CBMessageType, 4);

                LogCORE("Creating HttpWebRequest Request headers started-- ", 4);

                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(FundTransferUrl);
                request.Headers.Add("SOAPAction", "https://soa.nbf.ae/T24Service/SendToT24");
                request.ContentType = "text/xml; charset=\"utf-8\"";
                request.Accept = "gzip,deflate";
                request.Method = "POST";

               // request.Proxy = new WebProxy();
                request.Proxy = System.Net.WebRequest.DefaultWebProxy; 
                request.KeepAlive = false;
                request.ProtocolVersion = HttpVersion.Version10;
                //Added by Alex on 19.8.2020 for setting Response Time Out mainly for 501 FT ACC & 501 AFS FT ACC Posting as told by Client Start 
                //if (objCORE_Transaction_Queue.CBMessageType == "501_ACC" || objCORE_Transaction_Queue.CBMessageType == "501_AFS_ACC")
                //{
                    //request.Timeout = 1000 * Convert.ToInt32(Common.HttpWebResponseTimeOut);
                //}
                //Added by Alex on 19.8.2020 for setting Response Time Out mainly for 501 FT ACC & 501 AFS FT ACC Posting as told by Client End
                               

                //UnComment after Testing
                //Added by Alex on 19.8.2020 for configuring certiifcate addition Start
                if (Common.IsCerificateRequired_Posting == "1")
                {
                    LogCORE("Adding Certificates - FT T24 for Posting Type : " + PostingType + " for FileID : " + FileID + "for CB Message Type: " + objCORE_Transaction_Queue.CBMessageType, 4);

                    //UnComment after Testing (FOR TESTING)
                    request.ClientCertificates.Add(new X509Certificate2(Common.CORE_PFXPath, Common.CORE_PFXPassword));
                }
                //Added by Alex on 19.8.2020 for configuring certiifcate addition End
                //UnComment after Testing



                //LogCORE("Request WSS Header Creation starts - FT T24 for Posting Type : " + PostingType + " for FileID : " + FileID + "for CB Message Type: " + objCORE_Transaction_Queue.CBMessageType, 4);

                string Username = Common.Digest_UserName;
                string Password = Common.Digest_Password;
                string strCreatedDate = Convert.ToString(DateTime.Now);
                DateTime dt = new DateTime();
                string strNonce;
                string strPssDigest;
                //string strCreatedDate;

                byte[] nonce = CreateNonce();
                strNonce = Convert.ToBase64String(nonce);

                //CREATE DATETIME FORMAT
                dt = DateTime.Now;
                strCreatedDate = dt.ToString("yyyy-MM-ddThh:mm:ss.fffZ");

                //CREATE PASSWORD DIGEST
                strPssDigest = CreatePasswordDigest(nonce, strCreatedDate, Password);


                //LogCORE("FT T24 for Posting Type : " + PostingType + " for FileID : " + FileID + " - request.Authorization : " + request.Headers + "for CB Message Type: " + objCORE_Transaction_Queue.CBMessageType, 4);
                LogCORE("FT T24 for Posting Type started-- request.Authorization :" + request.Headers , 4);


                string oRequest = @"<soapenv:Envelope xmlns:soapenv=""http://schemas.xmlsoap.org/soap/envelope/"" xmlns:t24=""https://soa.nbf.ae/T24Service/"">
                                <soapenv:Header><wsse:Security xmlns:wsse=""http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"" xmlns:wsu=""http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd""><wsse:UsernameToken wsu:Id=""UsernameToken-DFDA939C85F8B13ADA154211040258026""><wsse:Username>" + Username + @"</wsse:Username><wsse:Password Type=""http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordDigest"">" + strPssDigest + @"</wsse:Password><wsse:Nonce EncodingType=""http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary"">" + strNonce + @"</wsse:Nonce><wsu:Created>" + strCreatedDate + @"</wsu:Created></wsse:UsernameToken></wsse:Security></soapenv:Header>
                                <soapenv:Body>" + Request
                                + @"</soapenv:Body>
                                     </soapenv:Envelope>";

                //LogCORE("FT T24 for Posting Type : " + PostingType + " for FileID : " + FileID + "- CorePosting Request XML :  " + oRequest + "for CB Message Type: " + objCORE_Transaction_Queue.CBMessageType, 4);

                LogCORE("FT T24 for Posting Type started with request-- "+ oRequest, 4);


                using (Stream stm = request.GetRequestStream())
                {
                    using (StreamWriter stmw = new StreamWriter(stm))
                    {
                        stmw.Write(oRequest);
                        stmw.Close();
                        //LogCORE("Request Written - FT T24 for Posting Type : " + PostingType + " for FileID : " + FileID + "for CB Message Type: " + objCORE_Transaction_Queue.CBMessageType, 4);
                    }
                }


                try
                {
                    // UnComment after Testing
                    HttpWebResponse httpWebRes = (HttpWebResponse)request.GetResponse();
                    //LogCORE("Waiting for Response of FT T24 for Posting Type : " + PostingType + " for FileID : " + FileID + "for CB Message Type: " + objCORE_Transaction_Queue.CBMessageType, 4);
                    LogCORE("Waiting for Response of FT T24 for Posting Type STrated ", 4);
                    //UnComment after Testing
                    using (StreamReader responseReader = new StreamReader(httpWebRes.GetResponseStream()))
                    {
                        //LogCORE("CorePosting xml read response started - FT T24 for Posting Type : " + PostingType + " for FileID : " + FileID + "for CB Message Type: " + objCORE_Transaction_Queue.CBMessageType, 4);
                        LogCORE("Response Started -- ", 4);
                        //Comment after Testing
                        //string filename = @"D:\FT_Response.txt";
                        //result = File.ReadAllText(filename);
                        //Comment after Testing
                        //UnComment after Testing
                        result = responseReader.ReadLine();
                        //result = string.Empty;

                        //LogCORE("CorePosting read response Received 1 - FT T24 for Posting Type : " + PostingType + " for FileID : " + FileID + " with response : " + result + "for CB Message Type: " + objCORE_Transaction_Queue.CBMessageType, 4);
                        LogCORE("CorePosting read response Received 1 - FT T24 for Posting Type Response: "+ result, 4);
                        // UnComment after Testing

                        Response = result;
                        //Response = string.Empty;
                        objCORE_Transaction_Queue.ResponseXML = Response;
                        responseReader.Close();
                        isPostSuccess = true;

                        //LogCORE("CorePosting read response Received - FT T24 for Posting Type : " + PostingType + " for FileID : " + FileID + " with response : " + Response + "for CB Message Type: " + objCORE_Transaction_Queue.CBMessageType, 4);

                        LogCORE("Response End -- ", 4);


                    }  //UnComment after Testing

                }
                catch (WebException ex)
                {
                    isPostSuccess = false;
                    objCORE_Transaction_Queue.PostingStatus = "E";

                    string StatusCode = string.Empty;

                    //Added by Alex on 31.5.2020 for logging exceptional response Start
                    objCORE_Transaction_Queue.ResponseXML = ex.Response.ToString();
                    LogCORE("CorePosting Response Xml - FT T24 for Posting Type : " + PostingType + " for FileID : " + FileID + " with response : " + ex.Response +"for CB Message Type: " + objCORE_Transaction_Queue.CBMessageType, 4);
                    //Added by Alex on 31.5.2020 for logging exceptional response End

                    using (WebResponse response = ex.Response)
                    {
                        //LogCORE("CorePosting Response Xml - FT T24 for Posting Type : " + PostingType + " for FileID : " + FileID + " with response : " + ex.Response, 4);
                        HttpWebResponse httpResponse = (HttpWebResponse)response;
                        StatusCode = httpResponse.StatusCode.ToString();
                        string message = new StreamReader(ex.Response.GetResponseStream()).ReadToEnd();
                        LogCORE("Exception in retrieving FT T24 Response for Posting Type : " + PostingType + " for FileID : " + FileID + "  with Exception : " + ex.Message + Environment.NewLine + "Custom Exception : " + message + Environment.NewLine + "Inner Exception : " + ex.InnerException + Environment.NewLine + "Stack Trace : " + ex.StackTrace + ". Status Code : " + StatusCode, 1);

                    }
                }
                catch (Exception ex)
                {
                   
                    LogCORE("Exception in retrieving FT T24 Response for Posting Type : " + PostingType + " for FileID : " + FileID + "  with  Inner Exception : " + ex.InnerException + Environment.NewLine + "with Exception : " + ex.Message + Environment.NewLine + "at  Stack Trace:" + ex.StackTrace, 1);
                    isPostSuccess = false;

                    objCORE_Transaction_Queue.PostingStatus = "E";

                }

            }
            catch (Exception ex)
            {
                isPostSuccess = false;
                LogCORE("Main Exception in FT T24 Response for Posting Type : " + PostingType + " for FileID : " + FileID + "  with  Inner Exception : " + ex.InnerException + Environment.NewLine + "with Exception : " + ex.Message + Environment.NewLine + "at  Stack Trace:" + ex.StackTrace, 1);

                objCORE_Transaction_Queue.PostingStatus = "E";


            }
            LogCORE("CorePosting completed", 4);
            return isPostSuccess;

        }

Posted 2-Nov-20 3:30am

ranio

Updated 2-Nov-20 3:32am

v2

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Comments

[no name] 2-Nov-20 11:00am

You need to StopWatch your code to see where the issue is. You need to "focus" instead expecting others to wade through that pile.

Richard MacCutchan 2-Nov-20 11:25am

See what is happening at the server to cause the delay. You really need to understand that no one here can possibly recreate your environment and test your code, even if they wanted to. So make sure that there is good logging at both ends, run the code a few times and see what is going on.

PIEBALDconsult 2-Nov-20 12:17pm

Servers and services take time. Network traffic takes time. Authentication takes time. Database queries and such take time.
These are not under the control of your code and at best you can improve the network or improve the hardware the service is on.
If your code is "querying" data from the server, then maybe you can improve things by altering how much data you request at a time.
For one such application I'm working on (querying the enterprise SPLUNK system), rather than requesting a full day's data at a time, I'm requesting one hour at a time. This yields much better throughput for me as well as improving how well the server(s) can serve other applications.

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