Created
August 31, 2011 18:56
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Console app running an OWIN Hello World application on Kayak
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using System; | |
using System.Collections.Generic; | |
using System.Linq; | |
using System.Net; | |
using System.Text; | |
using Gate; | |
using Gate.Kayak; | |
using Kayak; | |
namespace OwinHelloWorld | |
{ | |
class Program | |
{ | |
static void Main(string[] args) | |
{ | |
//Create the endpoint for incoming requests to Kayak | |
//Let SchedulerDelegate handle exceptions and shut downs | |
var kayakEndPoint = new IPEndPoint(IPAddress.Any, 5500); | |
Console.WriteLine("Listening on " + kayakEndPoint); | |
//Start Kayak and call the method Startup.Configuration when starting | |
KayakGate.Start(new SchedulerDelegate(), kayakEndPoint, Startup.Configuration); | |
} | |
public class SchedulerDelegate : ISchedulerDelegate | |
{ | |
public void OnException(IScheduler scheduler, Exception e) | |
{ | |
// called whenever an exception occurs on Kayak's event loop. | |
// this is good place for logging. here's a start: | |
Console.WriteLine("Exception on scheduler"); | |
Console.Out.WriteStackTrace(e); | |
} | |
public void OnStop(IScheduler scheduler) | |
{ | |
// called when Kayak's run loop is about to exit. | |
// this is a good place for doing clean-up or other chores. | |
Console.WriteLine("Scheduler is stopping."); | |
} | |
} | |
public class Startup | |
{ | |
// called automatically when Kayak starts up. | |
public static void Configuration(IAppBuilder builder) | |
{ | |
// we'll create a very simple pipeline: | |
var app = new HelloWorldOwinApp(); | |
builder.Run(Delegates.ToDelegate(app.ProcessRequest)); | |
} | |
} | |
public class HelloWorldOwinApp | |
{ | |
public void ProcessRequest(IDictionary<string, object> environment, | |
Action<string, IDictionary<string, string>, Func<Func<ArraySegment<byte>, Action, bool>, Action<Exception>, Action, Action>> responseCallBack, | |
Action<Exception> errorCallback) | |
{ | |
var path = environment["owin.RequestPath"] as string; | |
var responseHeaders = new Dictionary<string, string>(); | |
ArraySegment<byte> responseBody; | |
string responseStatus; | |
if (path == "/") | |
{ | |
responseStatus = "200 OK"; | |
responseHeaders.Add("Content-Type", "text/html"); | |
responseBody = new ArraySegment<byte>(Encoding.UTF8.GetBytes(( | |
"<!doctype html><html><head><meta charset=\"utf-8\">" + | |
"<title>Hello World</title></head>" + | |
"<body><strong>Hello world</strong></body>" + | |
"</html>"))); | |
} | |
else | |
{ | |
responseStatus = "404 Not Found"; | |
responseHeaders.Add("Content-Type", "text/html"); | |
responseBody = new ArraySegment<byte>(Encoding.UTF8.GetBytes(( | |
"<!doctype html><html><head><meta charset=\"utf-8\">" + | |
"<title>404 Not Found</title></head>" + | |
"<body>The resource cannot be found.</body>" + | |
"</html>"))); | |
} | |
responseCallBack( | |
responseStatus, | |
responseHeaders, | |
(next, error, complete) => | |
{ | |
next(responseBody, null); | |
complete(); | |
return () => { }; | |
}); | |
} | |
} | |
} | |
} |
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See the blog post for explanations: http://hocke.blogspot.com/2011/08/hello-world-with-owin-on-kayak.html