How to get data from API on POST method - asp.net

Question

I have to accesss an get some data from one of API.This API has only mentoned this method.No documentation showing how to acess and all.Data will be returned as Json.
This is the product API
1. GetAllProducts
POST
http://api.domain.com/api/Products/All
Content-Type: application/json; charset=utf-8
{"Token":"EncryptedToken"}
I have generated the Token and I tried to access it like this.But nothing is recieving.I found an example and tried to do like this.May be this is wrong.Can any one show me how to access and get the data.Please see my code below and thanks in advanced.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Net;
using System.Web.Script;
using System.Web.Script.Serialization;
using Newtonsoft.Json;
using System.Text;
public partial class Products : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
WebRequest request = WebRequest.Create("http://api.domain.com/api/Products/All?Token=U5Y1oPjI4DqwZgZkp-pVSmbIpP9XuXquKGYuREGwSNDX5OUhHAQVzI3exVOVzDD3|qlFREqiRHuKDG3gN5Zk05M5YjtWOhD8A11oxT7wolQ0gSLyKzXxNHgj94idAm4Wy6|CVnC2pguIbugAfqxSSJvf1KE_");
request.Method = "POST";
string postData = "Data to post here";
byte[] post = Encoding.UTF8.GetBytes(postData);
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = post.Length;
Stream reqdataStream = request.GetRequestStream();
reqdataStream.Write(post, 0, post.Length);
reqdataStream.Close();
request.Credentials = CredentialCache.DefaultCredentials;
WebResponse response = null;
try
{
response = request.GetResponse();
}
catch (Exception ex)
{
Response.Write("Error Occured.");
}
}
}

Answer 1

I think you should change these things:
content type
request.ContentType = "application/json";
the post data
string postData = "{\"Token\":\"U5Y1oPjI4DqwZgZkp-pVSmbIpP9XuXquKGYuREGwSNDX5OUhHAQVzI3exVOVzDD3|qlFREqiRHuKDG3gN5Zk05M5YjtWOhD8A11oxT7wolQ0gSLyKzXxNHgj94idAm4Wy6|CVnC2pguIbugAfqxSSJvf1KE_\"}";
the URI
WebRequest request = WebRequest.Create("http://api.domain.com/api/Products/All");