I can't really think of a better title but I will explain the scenario in detail.
I have a .Net Web API that is being hosted by IIS.
protected void Application_Start()
{
SwaggerConfig.Register();
FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
BundleConfig.RegisterBundles(BundleTable.Bundles);
GlobalConfiguration.Configure(WebApiConfig.Register);
RouteConfig.RegisterRoutes(RouteTable.Routes);
}
I also have OWIN in the mix that doesn't do much other than initializing Hangfire, CORS and the web api.
public static void Configuration(IAppBuilder app)
{
app.UseCors(Microsoft.Owin.Cors.CorsOptions.AllowAll);
OAuthConfig.Config(app);
Hangfire.GlobalConfiguration.Configuration.UseSqlServerStorage("SSDeployment");
app.UseHangfireServer();
app.UseWebApi(System.Web.Http.GlobalConfiguration.Configuration);
app.Use(typeof(OwinLogging));
Log.Debug("Starting SSDeployment.IntakeService - OWIN Configuration set for WebApi ...");
}
Here is where it gets interesting. Initially, inside the Configuration(IAppBuilder app) method, the first line was
HttpConfiguration config = new HttpConfiguration();
In another unrelated situation, my DelegatingHandlers classes weren't working. I thought that maybe two intances of the HttpConfiguration were being created, therefore the problem.
I then decided to use the same HttpConfiguration that is globally declared in the GlobalConfiguration, you can see in the method I pasted here...
GlobalConfiguration.Configuration
That change, somehow, seemed to have fixed the DelegatingHandlers issue. However, soon enough some of my actions were broken.
After a POST where I create a new item, I always return a 201 Created response which adds the Location header. For this I use Url.Link("ActionName", new {field = value}).
Thing is that I get an 'Not implemented' exception.
When i go back and use a var config = new HttpConfiguration() in the OWIN then it works. Also my DelegatingHandlers work.
Can anyone explain what's going on here? I haven't been able to find much documentation about it. Why is the GlobalConfiguration.Configuration (an HttpConfiguration object) global, yet I can't use it in my OWIN's startup class.
It bothers me to 'fix' something without knowing why it is fixed. Shooting blanks is not my thing :)
thanks!