Migrating a request context using HttpRequestMessage.Properties

Question

In the Web API application, I use Castle Windsor to provide services configured using PerWebRequest, and everything works fine in IIS.

However, when I use the native ASP.NET host for the web API (beta) package , I need to create my own lifetime in order to cover these services for the HTTP request.

How can I transfer context for a query using HttpRequestMessage.Properties?

Answer 1

I suggest you use a message handler to set some kind of your object in HttpRequestMessage.Property:

public class MyApplication : HttpApplication { protected void Application_Start() { RegisterHttpMessageHandlers(GlobalConfiguration.Configuration); } public void RegisterHttpMessageHandlers(HttpConfiguration config) { config.MessageHandlers.Add(new MyMessageHandler()); } } public static class MyHttpMessageHandlerExtensions { public static class HttpPropertyKey { public static readonly string MyProperty = "MyCompany_MyProperty"; } public static MyContext GetContext(this HttpRequestMessage request) { return (MyContext)request.Properties[HttpPropertyKey.MyProperty ]; } public static void SetContext(this HttpRequestMessage request, MyContext ctx) { request.Properties[HttpPropertyKey.MyProperty] = ctx; } } public class MyMessageHandler : DelegatingHandler { protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) { request.SetContext(new MyContext(){/*some your data*/}); return base.SendAsync(request, cancellationToken); } } public class MyController: ApiController { public object GetData() { MyContext ctx = this.Request.GetContext(); // the extenstion method is used } }