Katana not finding start up method using reflection - reflection

Question

I am working through Scott Allen's MVC 5 Fundamentals course on Pluralsight
The following code should work , but when I browse to localhost:8080 I get a blank page
using System;
using System.Collections.Generic;
using System.IO;
using System.Threading.Tasks;
using Microsoft.Owin.Hosting;
using Owin;
namespace ConsoleApplication1
{
using AppFunc = Func<IDictionary<string, object>, Task>;
class Program
{
static void Main(string[] args)
{
string uri = "http://localhost:8080";
using (WebApp.Start<Startup>(uri)) // Katana Please start, using the configuration from the Startup class and listening on the port given by the uri
{
Console.WriteLine("Started!");
Console.ReadKey();
Console.WriteLine("Stopping!");
}
}
}
public class Startup
{
public void Configuration(IAppBuilder app)
{
app.Use<HelloWorldComponent>();
}
}
public class HelloWorldComponent
{
AppFunc _next;
public HelloWorldComponent(AppFunc next)
{
_next = next;
}
// Katana uses reflection to find this Invoke function that matches the AppFunc signature
public Task Invoke(IDictionary<string, object> environment)
{
var response = environment["owin.ResonseBody"] as Stream;
using (var writer = new StreamWriter(response))
{
return writer.WriteAsync("Hello");
}
}
}
}
How do I get it working?

Answer 1

Everything is setup correctly, there is just a small typo in fetching the response object:
var response = environment["owin.ResponseBody"] as Stream;
using (var writer = new StreamWriter(response))
{
return writer.WriteAsync("Hello");
}
Notice the "p" in "ResponseBody"!