C# console application to send an SMS message through SMSified

Main.cs

using System;
using System.Text;
using System.Net;
using System.IO;

namespace smsifiedexample
{
	class MainClass
	{		
		public static void Main (string[] args)
		{
			// SMSified API endpoint.
			string webTarget = "https://api.smsified.com/v1/smsmessaging/outbound/{0}/requests";
			
			// Parameters to send with API request.
			string webPost = "address={0}&message={1}";
			
			// SMSified credentials.
			string userName = "";
			string password = "";
			string senderNumber = "";
			
			// Create new HTTP request.
			string url = String.Format(webTarget, senderNumber);
			HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
			req.Method = "POST";
			req.ContentType =  "application/x-www-form-urlencoded";
			byte[] postData = Encoding.ASCII.GetBytes(String.Format(webPost, "14075551212", "This is a test from C#"));
			req.ContentLength = postData.Length;
			
			// Set HTTP authorization header.
			string authInfo = userName + ":" + password;
			authInfo = Convert.ToBase64String(Encoding.Default.GetBytes(authInfo));
			req.Headers["Authorization"] = "Basic " + authInfo;
			
			// Send HTTP request.
			Stream PostStream = req.GetRequestStream();
			PostStream.Write(postData, 0, postData.Length);			
			HttpWebResponse res = (HttpWebResponse)req.GetResponse();
			
			// Evaluate result of HTTP request.
			if(res.StatusCode == HttpStatusCode.Created) {
				Console.WriteLine("SMS message has been sent.");
			}
			else
			{
				Console.WriteLine("ERROR: There was a problem sending your messaging.");
			}
		}		
	}
}