.NET Fiddle

CSharp · Console

/Program.cs

using System;
using System.Net;

public class Program
{
    public static void Main()
    {
    	WebClient client = new WebClient();
    	var jsonResponse = client.DownloadString("http://femah-additionator.azurewebsites.net/femah.axd/api/featureswitchtypes");
		string contentType = client.ResponseHeaders["Content-Type"];

		Console.WriteLine("--- JSON response ---");
		Console.WriteLine(jsonResponse);
		Console.WriteLine("--- Content-Type ---");
		Console.WriteLine(contentType);
    }
}