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CSharp · Console

/Program.cs

using System;
using System.Web;
					
public class Program
{
	public static void Main()
	{
		Console.WriteLine(GetUrl("http://example.org?wID=xxx&qwID=yyy"));
	}
	
	/// <summary>
        /// Extension method to evaluate the url token for wid
        /// </summary>
        /// <param name="rawUrl">Incoming URL</param>
        /// <returns>Expected URL</returns>
        public static string GetUrl(string rawUrl)
        {
            if (string.IsNullOrWhiteSpace(rawUrl))
            {
                return string.Empty;
			}
			
			var uriBuilder = new UriBuilder(rawUrl);
            var queryString = HttpUtility.ParseQueryString(uriBuilder.Query);
			queryString.Set("wID", "[[WID]]");
			uriBuilder.Query = queryString.ToString();
			return uriBuilder.Uri.ToString();
        }
}