Question

I’m trying to build a REST service in a Sitecore root. My application start looks like this:

void Application_Start(object sender, EventArgs e) 
{
    RouteTable.Routes.MapHttpRoute(
        name: "DefaultApi", routeTemplate: "api/{controller}/{id}", defaults: new { id = System.Web.Http.RouteParameter.Optional });
}

And my URL looks like this:

http://{mydomain}/api/books

I have the correct controller and all that.

But Sitecore keeps redirecting me to the 404 page. I’ve added the path to the IgnoreUrlPrefixes node in the web.config, but to no avail. If I had to guess, I’d think that Sitecore’s handler is redirecting before my code gets the chance to execute, but I really don’t know.

Does anybody have any idea what might be wrong?

Answer 1

Your assessment is correct. You need a processor in the httpRequestBegin pipeline to abort Sitecore’s processing. See the SystemWebRoutingResolver in this answer:
Sitecore and ASP.net MVC

It’s also described in this article:
http://www.sitecore.net/Community/Technical-Blogs/John-West-Sitecore-Blog/Posts/2010/10/Sitecore-MVC-Crash-Course.aspx

But I’ll include the code here as well. 🙂

public class SystemWebRoutingResolver : Sitecore.Pipelines.HttpRequest.HttpRequestProcessor
{
    public override void Process(Sitecore.Pipelines.HttpRequest.HttpRequestArgs args)
    {
        RouteData routeData = RouteTable.Routes.GetRouteData(new HttpContextWrapper(args.Context));
        if (routeData != null)
        {
            args.AbortPipeline();
        }
    }
}

Then in your httpRequestBegin configuration:

<processor type="My.SystemWebRoutingResolver, My.Classes" />