For micro-api tutorial

Controller.cs

using System.Collections.Generic;
using System.Web.Http;

namespace SelfHosted{
  public class HelloController : ApiController{
    // GET api/hello
    public IEnumerable Get(){
      return new string[] { "Hello", "World" };
    }

    // GET api/hello/bob
    public string Get(string name){
      return $"Hello, {name}!";
    }
  }
}