getting directed to ASP.NET home page on browser - asp.net

Question

I am trying to run the following HTTP POST API Call using ASP.NET on Visual studio 2013. I created a new web application project as mentioned here
using System;
using System.IO;
using System.Net;
using System.Security.Cryptography;
using System.Text;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
CreateNewAPICall("test api abc");
}
private object CreateNewAPICall(string apiDesc)
{
object result = null;
var accessKey = "myaccesskey";
var secretKey = "mysecretkey";
var uRLapiList = "http://myurl.com";
byte[] bytes = Encoding.UTF8.GetBytes("apiListDesc=" + apiDesc);
var method = "POST";
var timeString = DateTime.UtcNow.GetDateTimeFormats()[104];
var signature = GetSignature(secretKey, method, timeString);
var authorization = accessKey + ":" + signature;
HttpWebRequest request = CreateWebRequest(uRLapiList, "POST", bytes.Length, timeString, authorization);
using (var requestStream = request.GetRequestStream())
{
requestStream.Write(bytes, 0, bytes.Length);
}
using (var response = (HttpWebResponse)request.GetResponse())
{
if (response.StatusCode == HttpStatusCode.OK)
{
var responseReader = new StreamReader(request.GetResponse().GetResponseStream());
// Return List api Data
result = responseReader.ReadToEnd();
}
}
return result;
}
private HttpWebRequest CreateWebRequest(string endPoint, string method, Int32 contentLength, string timeString, string authorization)
{
// Some code here
}
private string GetSignature(string secretKey, string method, string timeString)
{
// Some code here
}
private byte[] HMAC_SHA1(string signKey, string signMessage)
{
// Some code here
}
private string CreateSignature(string stringIn, string scretKey)
{
// Some code here
}
}
Right now, I am confused as to where to put this file in the "Solution Explorer" in order to
run the file and get the output on my browser?
Right now I have this code inside "Models-->Class1.cs" directory as shown in the image below:
So, when I press F-5 key, I am getting directed to the home page of the ASP.NET with the URL http://localhost:4439/
Do I need to make any changes here?