DependencyParameterBinding

DependencyParameterBinding.cs

using System;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;
using System.Web.Http;
using System.Web.Http.Controllers;
using System.Web.Http.Metadata;

namespace Envicase.Bindings
{
    public class DependencyBindingAttribute : ParameterBindingAttribute
    {
        public override HttpParameterBinding GetBinding(
            HttpParameterDescriptor parameter)
        {
            return new DependencyParameterBinding(parameter);
        }
    }

    public class DependencyParameterBinding : HttpParameterBinding
    {
        public DependencyParameterBinding(HttpParameterDescriptor descriptor)
            : base(descriptor)
        {
        }

        public override Task ExecuteBindingAsync(
            ModelMetadataProvider metadataProvider,
            HttpActionContext actionContext,
            CancellationToken cancellationToken)
        {
            var controllerContext = actionContext.ControllerContext;
            var resolver = controllerContext.Configuration.DependencyResolver;
            if (resolver != null)
            {
                var scope = actionContext.Request.GetDependencyScope();
                var service = scope.GetService(Descriptor.ParameterType);
                var arguments = actionContext.ActionArguments;
                arguments[Descriptor.ParameterName] = service;
            }
            return Task.FromResult(true);
        }
    }
}