Async HTTPS WebService - High time to get first response - Help

Question

User-665281982 posted

I need help.

Why when I do the first call to a https webService async,  is having a high time to get response ?

If I put more one call after this first call, the service async returns very fast.

What I Have to do ? Is this any configuration in the server ? 

The code is: 

using System.Net.Security;
using System.Security.Cryptography.X509Certificates;

public static bool OnValidationCallback(object sender, X509Certificate cert, X509Chain chain, SslPolicyErrors errors)
        {
            return true;
        }

public static bool InsertCustomer(IShopper customerData, ref string sCodErro)
        {
            
            try
            {
                using (var transactionScope = new TransactionScope(TransactionScopeOption.RequiresNew))
                {
                    if (!customerData.Insert())
                        return false;

                    if (!AppSettingsManager.GetValue("WcsCustomerSyncEnabled", true))
                    {
                        transactionScope.Complete();
                        return true;
                    }

                    ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(OnValidationCallback);
                    
                    var wcsCustomerSyncClient = new WcsCustomerSyncClient();
                    
                    try
                    {
                        
                        // I put this first call to test.. This gets high time to get response.
                        try
                        {
                            string ServerURL = "https://171.30.40.97:7854/TS/ECommCustomerSyncTSV2";
                            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(ServerURL);
                            request.ContentType = "text/xml";
                            request.Method = "GET";
                            // Get the response
                            WebResponse response = null;
                            response = request.GetResponse();
                            
                        }
                        catch (Exception ex)
                        {
                            
                            
                        }
                        
                        //This is the main call in the method. This have to be the first call in the method. If continue the sencond call is very fast. 
                        var syncResponse = wcsCustomerSyncClient.submitCustomerSync(GetRequestData(OperationTypeType.I, customerData));
                        

                        
                    }
                    finally
                    {
                        wcsCustomerSyncClient.Abort();
                        wcsCustomerSyncClient.Dispose();
                    }

                    transactionScope.Complete();
                }
                return true;
            }
            catch (Exception ex)
            {
                
                return false;
            }
        }