JIRA Rest API Login using C#

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C#

REST

I've written below C# code to login to JIRA Rest API:

var url = new Uri("http://localhost:8090/rest/auth/latest/session?os_username=tempusername&os_password=temppwd");
var request = WebRequest.Create(url) as HttpWebRequest;
if (null == request)
{
return "";
}
request.Method = "POST";
request.ContentType = "application/json";
request.ContentLength = 200;
request.KeepAlive = false;
using (var response = request.GetResponse() as HttpWebResponse)
{
}

When I execute this, application just goes on running without returning any response. Please suggest if this is the right way of calling JIRA Login using REST API. Also please let me know how to use above login details to call a JIRA Rest API