Create "card" example for stripe API v1

gistfile1.cs

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

namespace stripe_example
{
	class MainClass
	{
		public static void Main (string[] args)
		{
		 // for use against this API endpoint: https://stripe.com/docs/api/curl#create_card
			var customerId = "YOUR_CUSTOMER_ID";
			var url = String.Format("https://api.stripe.com/v1/customers/{0}/sources", customerId);
			var secretKey = "YOUR_SECRET_KEY";
			var cardNumber = "4242424242424242"; // test card number
			var expirationMonth = "01"; // january
			var expirationYear = "24"; // 2025
		
			// code example below from https://msdn.microsoft.com/en-us/library/debx8sh9%28v=vs.110%29.aspx
			// Create a request using a URL that can receive a post. 
			WebRequest request = WebRequest.Create (url);
			// Set the Method property of the request to POST.
			request.Method = "POST";
			// Create POST data and convert it to a byte array.
			// notice that we use a dictionary here to pass the credit card data
			string postData = String.Format(
				"source[object]=card&source[number]={0}&source[exp_month]={1}&source[exp_year]={2}",
				cardNumber,expirationMonth, expirationYear
			);
			byte[] byteArray = Encoding.UTF8.GetBytes (postData);
			// Set the ContentType property of the WebRequest.
			request.ContentType = "application/x-www-form-urlencoded";
			// Set the ContentLength property of the WebRequest.
			request.ContentLength = byteArray.Length;
			// authenticate
			request.Credentials = new NetworkCredential(secretKey,String.Empty);
			// Get the request stream.
			Stream dataStream = request.GetRequestStream ();
			// Write the data to the request stream.
			dataStream.Write (byteArray, 0, byteArray.Length);
			// Close the Stream object.
			dataStream.Close ();
			// Get the response.
			WebResponse response = request.GetResponse ();
			// Display the status.
			Console.WriteLine (((HttpWebResponse)response).StatusDescription);
			// Get the stream containing content returned by the server.
			dataStream = response.GetResponseStream ();
			// Open the stream using a StreamReader for easy access.
			StreamReader reader = new StreamReader (dataStream);
			// Read the content.
			string responseFromServer = reader.ReadToEnd ();
			// Display the content.
			Console.WriteLine (responseFromServer);
			// Clean up the streams.
			reader.Close ();
			dataStream.Close ();
			response.Close ();
		}
	}
}