Using SimpleInjector Is there a way to replicate RegisterWebApiRequest <T> () with .net 4 / webapi 1?

Question

Follow this question . I am working on an example using SimpleInjector and WebAPI. Unfortunately, when I want to use the WebAPI KB2568167 and KB2915689 to prevent me from upgrading to .net 4.5. So I am stuck using .net 4.0 and WebAPI v1 (4.0.30506.0) at the moment.

Is there a way to replicate a scope RegisterWebApiRequest<T>()with an older version of WebAPI?

While I only contained .net 4.5 versions in nu-get packages, I was able to download the code and get compilation of framework 4.0 without any problems. When called var container = request.GetDependencyScope()in my message handler, a class is returned SimpleInjectorWebApiDependencyResolver. Trying to retrieve an instance from a container as follows:

  var poco = (SimplePOCO) container.GetService(typeof(SimplePOCO));

leads to the following error:

A registered delegate for type SimplePOCO throws an exception. SimplePOCO is registered as a Web API Request style, but an instance is requested outside the context of the Web API request.

Am I just missing something in my config? Is there an alternative - like creating my own message handler?

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UPDATE

After posting the codeplex question, I went back to the basics. I accepted the simple Vanilla Mvc WebApi project, citing my compilations SimpleInjector, SimpleInjector.Integration.WebApiand SimpleInjector.Extensions.ExecutionContextScoping.

@blueling, .

? , - - WebApi slim web.config. , , . - web.config .

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2

, , Dispose() DependencyResolver, ....

Answer 1

. , dispose SimpleInjectorWebApiDependencyResolver, :

BAD - :

public sealed class SimpleInjectorWebApiDependencyResolver : IDependencyResolver
{
  private readonly Container container;

  public SimpleInjectorWebApiDependencyResolver(Container container)
  {
    this.container = container;
  }

  public IDependencyScope BeginScope()
  {
    return this;
  }

  public object GetService(Type serviceType)
  {
    return ((IServiceProvider)this.container).GetService(serviceType);
  }

  public IEnumerable<object> GetServices(Type serviceType)
  {
    return this.container.GetAllInstances(serviceType);
 }

 public void Dispose()
 {
 }
}

, .

public sealed class SimpleInjectorWebApiDependencyResolver : IDependencyResolver
{
    private readonly Container container;
    private readonly Scope scope;

    public SimpleInjectorWebApiDependencyResolver(Container container) : this(container, beginScope: false)
    {
        Requires.IsNotNull(container, "container");
    }

    private SimpleInjectorWebApiDependencyResolver(Container container, bool beginScope)
    {
        this.container = container;

        if (beginScope)
        {
            this.scope = container.BeginExecutionContextScope();
        }
    }

    IDependencyScope IDependencyResolver.BeginScope()
    {
        return new SimpleInjectorWebApiDependencyResolver(this.container, beginScope: true);
    }

    object IDependencyScope.GetService(Type serviceType)
    {
        if (!serviceType.IsAbstract && typeof(IHttpController).IsAssignableFrom(serviceType))
        {
            return this.container.GetInstance(serviceType);
        }

        return ((IServiceProvider)this.container).GetService(serviceType);
    }

    IEnumerable<object> IDependencyScope.GetServices(Type serviceType)
    {
        return this.container.GetAllInstances(serviceType);
    }

    void IDisposable.Dispose()
    {
        if (this.scope != null)
        {
            this.scope.Dispose();
        }
    }
}

. CallContext.LogicalGetData , @Steven , . .