using System;

using System.Security.Cryptography;

using System.Net;

using System.Collections.Specialized;

using System.Text;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        /* Console.WriteLine(DateTime.Now.ToString("yyyyMMddHH"));*/

                    //THIS IS MORE LIKE A CONSOLE LOG SO YOU SHOULD SEE THE STATUS OF THE MESSAGE IN YOUR CONSOLE

         Console.WriteLine(HellioMessaging_SendSMS());

    }

​

    static string sha1(string input) {

        var hash = new SHA1Managed().ComputeHash(Encoding.UTF8.GetBytes(input));

        return string.Concat(hash.Select(b => b.ToString("x2")));

    }

​

​

    public static string HellioMessaging_SendSMS() {

          var currentDate =  DateTime.Now.ToString("yyyyMMddHH");

          string applicationSecret = "c562ad35fa5abdf9a9c00a320abab7c8";

          string clientId = "5d7137393b173";

          string hashedAuthKey = sha1(clientId + applicationSecret + currentDate);

          string senderId = "HellioSMS";

          string msisdn = "233265515154";

          string message = "Thanks for choosing Hellio Messaging. This Is A Message Sent From A C# Code.";

          using (var wb = new WebClient()) {

          byte[] response = wb.UploadValues("https://helliomessaging.com/api/v2/sms", new NameValueCollection(){

          {"clientId", clientId},

          {"authKey", hashedAuthKey},

          {"msisdn", msisdn},

          {"message", message},

          {"senderId", senderId}

          });

          string result = System.Text.Encoding.UTF8.GetString(response);

          return result;

          }

    }

}