Answer

Clarification needed about WCF Concurrency in REST Services

Satya Pratap Danda

11y

1.3k

hi all,

I have created WCF Rest services. When i am hitting the same request continuously from client(i.e from Android mobile) it is using diifrerent threads and thread.sleep is also not working.

My code is below like this..

[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall, ConcurrencyMode = ConcurrencyMode.Single)]

public class Service1 : IService1

{

[WebInvoke(Method = "POST", RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Bare, UriTemplate = "VerifyLogin")]

public bool VerifyLogin(Login loginCred)

{

bool res = false;

string strThreadPrint= "";

try

{

strThreadPrint= Thread.CurrentThread.ManagedThreadId.ToString() + " time at : "+DateTime.Now;

Thread.Sleep(5000);

dbcon = new DBConnection();

//for testing here i am throwing an exception so that its going to catch block and responce sent back to client with exception details as shown in catch block.

dbcon.VerifyLogin(loginCred.Username.Trim(), loginCred.Password.Trim());

}

catch (Exception sqlex)

{

objErrorClass = new ErrorClass("Login class", sqlex.Message + " --- " + strThreadPrint, "CNMK");

throw new WebFaultException<ErrorClass>(objErrorClass, System.Net.HttpStatusCode.BadRequest);

}

when i am sending request using fiddler with following Requestbody {"Username":"13","Password":"dgdf"}

At that time i am getting the responce as in Json format

{"ErrorDesc":"login failed --- 33 time at :09/04/2013 12:31:30"}

{"ErrorDesc":"login failed --- 35 time at :09/04/2013 12:31:30"}

{"ErrorDesc":"login failed --- 41 time at :09/04/2013 12:31:30"}