System.Net.WebException: The request was aborted: The request was canceled. at System.Net.HttpWebRequest.GetResponse()

tanmayee sahoo

Hi,

I am developing a web service to integrate QuickBooks data with a CRM using C#.
CRM API exposes a method to get data from CRM.

I am calling the method to get the data from CRM inside back ground worker and doing some other stuff in the fore ground. Below is the code i have written to accomplish the task

public DataTable GetZohoAccountRecords(string zohoTicket)
{
          DataTable dtZohoAccount = new DataTable();

           string    apiKey = ConfigurationManager.AppSettings["ApiKey"].ToString();

          string     accountURL = ConfigurationManager.AppSettings["GetAccountURL"].ToString() + zohoTicket + "&apikey=" + apiKey;

                gWebRequest = (HttpWebRequest)GetWebRequest(new Uri(accountURL));

                gWebRequest.Method = "GET";


                //------For getting the Web Response---------
                gWebResponse = (HttpWebResponse)gWebRequest.GetResponse();

               Stream responseStream = gWebResponse.GetResponseStream();
                Stream Reader streamReader = new StreamReader(responseStream);
                zohoResponse = streamReader.ReadToEnd();
}

protected override WebRequest GetWebRequest(Uri uri)
        {
            HttpWebRequest webRequest = null;
            try
            {

                webRequest = (HttpWebRequest)base.GetWebRequest(uri);
                webRequest.KeepAlive = false;
                //webRequest.ProtocolVersion = HttpVersion.Version10;
            }
            catch (Exception ex)
            {
                gQbws.WriteToLogFile("Exception in overriding GetWebRequest\t" + ex.ToString());
            }
            return webRequest;
        }

I am getting System.Net.WebException: The request was aborted: The request was canceled.   at System.Net.HttpWebRequest.GetResponse() while trying to get records from CRM.

Can anyone please tell me why I am getting this exception and what do I do to fix this exception.

Any help would be highly appeciated.

thanks
tanmayee

5 Replies

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Master Billa17y ago
Hi

I have a quick question , how do you get the token to attached with your url?

is it given by the CRM when you a re login to CRM using username and password.

could you give then quick book CRM url, i will work for you and give the code.

thank you
0
tanmayee sahoo17y ago
Thanks All for your reply. The key and the url is write. I can access this from browser.
So I do n't think that it is because of url I am getting WebException. Can you please tell me what else could be the reason.

thanks
tanmayee
0

Master Billa17y ago

Hi,

yes, but he sending Key and token , so when you are access the CRM we don't need set

wreq.Credentials = CredentialCache.DefaultCredentials;

most of the CRM support to public and private key encryption authentication.
So we need send correct key which given by CRM when he loin to CR using user name and password.

Thank you

Roei Bar17y ago

The Reason for the Error is that CRM Required Authentication

here is a sample code with an Option To pass Credentials

   public XmlDocument getResponseFromHTTP(string _CLI)
        {
            Stream reqStm = null;
            HttpWebRequest wreq = null;
            Stream resStm;
            StreamReader sr;
            HttpWebResponse wres;
            XmlDocument xmlRequset = new XmlDocument();
            try
            {

                System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;
              
                string _ResponseXML = string.Empty;
                string txtRequest = string.Empty;


                wreq = WebRequest.Create(ConfigurationAssist.GetValue("LogNet")) as HttpWebRequest;

                if (ConfigurationAssist.GetValue("IgnoreCertificateErrors") == "1")
                    ServicePointManager.ServerCertificateValidationCallback += AcceptAllCertificatePolicy;
               
                byte[] bytes = Encoding.ASCII.GetBytes(txtRequest);
                if (wreq != null) wreq.Method = "POST";
                wreq.Credentials = CredentialCache.DefaultCredentials;
                wreq.Headers.Add("cli", _CLI);

                if (wreq != null) wreq.ContentLength = bytes.Length;
               
                if (wreq != null) reqStm = wreq.GetRequestStream();
               
                if (reqStm != null) reqStm.Write(bytes, 0, bytes.Length);
                if (wreq != null)
                {
                    wres = wreq.GetResponse() as HttpWebResponse;


                    if (wres != null)
                    {
                        resStm = wres.GetResponseStream();
                        sr = new StreamReader(resStm);
                        _ResponseXML = sr.ReadToEnd();
                        wres.Close();
                        sr.Close();
                        resStm.Dispose();

                    }
                    wres.Close();

                }
                xmlRequset.LoadXml(_ResponseXML);
                
                reqStm.Dispose();


                return xmlRequset;
            }
            catch (WebException Webex)
            {
                //wres.Close();
                //sr.Close();
                //resStm.Dispose();
                //wres.Close();
                reqStm.Dispose();
                return xmlRequset;
            }
            catch (Exception ex)
            {
                //wres.Close();
                //sr.Close();
                //resStm.Dispose();
                //wres.Close();
                reqStm.Dispose();
                return xmlRequset;
            }


        }

Master Billa17y ago
Hi

there first and most reason is your key(token not valid) to access the CRM.

2. Please check the url is correct after concatenate key

string accountURL = ConfigurationManager.AppSettings["GetAccountURL"].ToString() + zohoTicket + "&apikey=" + apiKey;

i think may be one & sign is missing before the the zohoTicket.(i think )

3.Please ping to normal to that server is working.

if those are OK fine then it will work

Note:Please verify you are composing acceptablt format to get the response from the CRM

Thank you
0