ASP.NET Web API binding with ninject

Question

I have just installed the mvc4 rc update and I am trying to build an api application with little luck.

I am using ninject but cant get my controllers to load. I keep getting an error

Type 'Api.Controllers.ConsumerController' does not have a default constructor

I am very new to mvc and using injection so please bear with me.

I havent done anything special to the default binding that is created via nuget

 public static class NinjectWebCommon  {     private static readonly Bootstrapper bootstrapper = new Bootstrapper();      /// <summary>     /// Starts the application     /// </summary>     public static void Start()      {         DynamicModuleUtility.RegisterModule(typeof(OnePerRequestHttpModule));         DynamicModuleUtility.RegisterModule(typeof(NinjectHttpModule));         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();         kernel.Bind<Func<IKernel>>().ToMethod(ctx => () => new Bootstrapper().Kernel);         kernel.Bind<IHttpModule>().To<HttpApplicationInitializationHttpModule>();          RegisterServices(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<IConsumerRepository>().To<ConsumerRepository>();     }         } 

My controller looks like

   private readonly IConsumerRepository _repository;      public ConsumerController(IConsumerRepository repository)     {         _repository = repository;     }      [HttpGet]     public IQueryable<Consumer> Get(Guid id)     {         return _repository.Get(id).AsQueryable();     } 

What do I need to do to get the api controllers to work with ninject?

Sorry if this is simple stuff

I tried your suggestion Michael however after changing the the webcommon.cs to this

  private static IKernel CreateKernel()     {         var kernel = new StandardKernel();         kernel.Bind<Func<IKernel>>().ToMethod(ctx => () => new Bootstrapper().Kernel);         kernel.Bind<IHttpModule>().To<HttpApplicationInitializationHttpModule>();          RegisterServices(kernel);         GlobalConfiguration.Configuration.DependencyResolver = new NinjectDependencyResolver(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<IConsumerRepository>().To<ConsumerRepository>();     } 

I get an error when

var kernel = new StandardKernel(); 

is called

Method 'GetFilters' in type 'Ninject.Web.WebApi.Filter.DefaultFilterProvider' from assembly 'Ninject.Web.WebApi, Version=3.0.0.0, Culture=neutral, PublicKeyToken=c7192dc5380945e7' does not have an implementation.

What am I missing?

Answer 1

I asked Brad Wilson about this and it has changed in MVC4 RC.

GlobalConfiguration.Configuration.ServiceResolver has been moved to GlobalConfiguration.Configuration.DependencyResolver

Use this implementation to create a Ninject DependencyResolver for your Web Api: https://gist.github.com/2417226

In NinjectWebCommon.cs:

// Register Dependencies RegisterServices(kernel);  // Set Web API Resolver GlobalConfiguration.Configuration.DependencyResolver = new NinjectDependencyResolver(kernel);