WebAPI DI with Ninject throws error for ILogger RSS

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  Bilal Hasan ...

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  4 Points

  5 Posts

  WebAPI DI with Ninject throws error for ILogger

  Mar 04, 2012 04:01 PM|LINK

  Hi,

  I am trying to implement DI using Ninject. My code is as follows, (I had a look on what was posted by Shawn Wildermuth here).

  public static class NinjectMVC3
      {
          private static readonly Bootstrapper bootstrapper = new Bootstrapper();
  
          /// <summary>
          /// Starts the application
          /// </summary>
          public static void Start()
          {
              DynamicModuleUtility.RegisterModule(typeof(OnePerRequestModule));
              DynamicModuleUtility.RegisterModule(typeof(HttpApplicationInitializationModule));
              bootstrapper.Initialize(CreateKernel);
          }
          
          /// <summary>
          /// Stops the application.
          /// </summary>
          public static void Stop()
          {
              bootstrapper.ShutDown();
          }
          
          /// <summary>
          /// Creates the kernel that will manage your application.
          /// </summary>
          /// <returns>The created kernel.</returns>
          private static IKernel CreateKernel()
          {
              var kernel = new StandardKernel();
              //var locator = ;
              RegisterServices(kernel);
              //GlobalConfiguration.Configuration.ServiceResolver.SetResolver(t => locator.GetInstance(t),t=>locator.GetAllInstances(t));
              GlobalConfiguration.Configuration.ServiceResolver.SetResolver(new NinjectServiceLocator(kernel));
              return kernel;
          }
  
          /// <summary>
          /// Load your modules or register your services here!
          /// </summary>
          /// <param name="kernel">The kernel.</param>
          private static void RegisterServices(IKernel kernel)
          {
              kernel.Bind<IProductRepository>().To<ProductRepository>();
              kernel.Bind<IHttpControllerActivator>().To<DefaultHttpControllerActivator>();
              kernel.Bind<IHttpControllerFactory>().To<DefaultHttpControllerFactory>();
              kernel.Bind<IFormatterSelector>().To<FormatterSelector>();
              
          }
      }
  }

  But when I run the application I get the "Error activating ILogger" error.

  Any help and pointers will be highly appreciated.

  Regards

  Bilal

  • Edited by Bilal Hasan Khan on Mar 04, 2012 04:01 PM
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  davebettin

  Member

  313 Points

  94 Posts

  Re: WebAPI DI with Ninject throws error for ILogger

  Mar 05, 2012 05:17 AM|LINK

  What does your global.asax look like? Is this being used in a MVC3 app?

  Dave Bettin
  @dbettin
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  awebb

  Member

  204 Points

  91 Posts

  Re: WebAPI DI with Ninject throws error for ILogger

  Mar 05, 2012 07:36 AM|LINK

  Try this:-

  Comment out your service locator statement, uncomment the line above it, and change it to this:-

  GlobalConfiguration.Configuration.ServiceResolver.SetResolver(t => kernel.TryGet(t), t => kernel.GetAll(t));

  Notice the use of TryGet instead of Get - i.e. it will return null for those types it doesn't know about instead of throwing.

  Andrew
  • Edited by awebb on Mar 05, 2012 08:51 AM
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  Bilal Hasan ...

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  4 Points

  5 Posts

  Re: WebAPI DI with Ninject throws error for ILogger

  Mar 05, 2012 09:42 PM|LINK

  using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Web;
  using System.Web.Http;
  using System.Web.Mvc;
  using System.Web.Optimization;
  using System.Web.Routing;
  using Ninject;
  using NinjectAdapter;
  using FirstWebAPI.Models;
  
  namespace FirstWebAPI
  {
      // Note: For instructions on enabling IIS6 or IIS7 classic mode,
      // visit http://go.microsoft.com/?LinkId=9394801
  
      public class WebApiApplication : System.Web.HttpApplication
      {
          public static void RegisterGlobalFilters(GlobalFilterCollection filters)
          {
              filters.Add(new HandleErrorAttribute());
          }
         
          public static void RegisterRoutes(RouteCollection routes)
          {
              routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
  
              routes.MapHttpRoute(
                  name: "DefaultApi",
                  routeTemplate: "api/{controller}/{id}",
                  defaults: new { id = RouteParameter.Optional }
              );
  
              routes.MapRoute(
                  name: "Default",
                  url: "{controller}/{action}/{id}",
                  defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
              );
          }
  
          protected void Application_Start()
          {
             
              AreaRegistration.RegisterAllAreas();
  
              RegisterGlobalFilters(GlobalFilters.Filters);
              RegisterRoutes(RouteTable.Routes);
  
              BundleTable.Bundles.RegisterTemplateBundles();
              
          }
  
        
         
      }
  }

  This is the global.asax for the app. Its the default that gets generated.

• • Reply
  

  davebettin

  Member

  313 Points

  94 Posts

  Re: WebAPI DI with Ninject throws error for ILogger

  Mar 06, 2012 02:12 AM|LINK

  Yeah, awebb is right.  An exception is being thrown when it trys to resolve the service in Ninject.

  Here is  a sample ninject resolver: https://github.com/ChristianWeyer/Thinktecture.Web.Http/blob/master/Thinktecture.Web.Http/DI/NinjectResolver.cs. 

  Dave Bettin
  @dbettin
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  Bilal Hasan ...

  Member

  4 Points

  5 Posts

  Re: WebAPI DI with Ninject throws error for ILogger

  Mar 12, 2012 12:34 AM|LINK

  This post from Phil Haack solved my problem .

  http://haacked.com/archive/2012/03/11/itrsquos-the-little-things-about-asp-net-mvc-4.aspx

  • Marked as answer by Bilal Hasan Khan on Mar 12, 2012 12:34 AM
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  discofunk

  Member

  3 Points

  1 Post

  Re: WebAPI DI with Ninject throws error for ILogger

  Mar 30, 2012 05:48 PM|LINK

  I made a simple IDepenedencyResolver adapter for Ninject.  Seems to work:

  public class NinjectDependencyResolverAdapter : IDependencyResolver
  {
  	private readonly IKernel kernel;
  
  	public NinjectDependencyResolverAdapter(IKernel kernel)
  	{
  		this.kernel = kernel;
  	}
  
  	#region Implementation of IDependencyResolver
  
  	public object GetService(Type serviceType)
  	{
  		return kernel.TryGet(serviceType);
  	}
  
  	public IEnumerable<object> GetServices(Type serviceType)
  	{
  		return kernel.GetAll(serviceType);
  	}
  
  	#endregion
  }

  Then it's just:

  config.ServiceResolver.SetResolver(new NinjectDependencyResolverAdapter(kernel));

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  Bilal Hasan ...

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  4 Points

  5 Posts

  Re: WebAPI DI with Ninject throws error for ILogger

  May 04, 2012 01:42 PM|LINK

  Does it work with Web API or MVC 4.

  Because the same thing failed for me with WebAPI. I was using the MVC 4 beta release.