Is it possible to configure Autofac to work with ASP.NET MVC and ASP.NET Web Api

Question

Is it possible to configure Autofac to work with ASP .NET MVC and ASP .NET Web Api. I\'m aware that the dependency resolvers are different. But when using the documented app

Answer 1

I thought I'd add a little help those struggling with this in mvc5 and web api 2.

First add nuget packages

• Autofac
• Autofac asp.net mvc 5 integration
• Autofac asp.net web api 2.x integration

in global add in application_start (or as app_start class) add call to the below class

AutofacConfig.RegisterAutoFac();

now add this class under App_start

using System.Reflection;
using System.Web.Http;
using System.Web.Http.Controllers;
using System.Web.Mvc;
using Autofac;
using Autofac.Integration.Mvc;
using Autofac.Integration.WebApi;

namespace Example1.Web
{
    public class AutofacConfig
    {
        public static IContainer RegisterAutoFac()
        {
            var builder = new ContainerBuilder();

            AddMvcRegistrations(builder);
            AddRegisterations(builder);

            var container = builder.Build();

            DependencyResolver.SetResolver(new AutofacDependencyResolver(container));
            GlobalConfiguration.Configuration.DependencyResolver = new AutofacWebApiDependencyResolver(container);

            return container;
        }

        private static void AddMvcRegistrations(ContainerBuilder builder)
        {
            //mvc
            builder.RegisterControllers(Assembly.GetExecutingAssembly());
            builder.RegisterAssemblyModules(Assembly.GetExecutingAssembly());
            builder.RegisterModelBinders(Assembly.GetExecutingAssembly());
            builder.RegisterModelBinderProvider();

            //web api
            builder.RegisterAssemblyTypes(Assembly.GetExecutingAssembly()).PropertiesAutowired();
            builder.RegisterModule();
        }

        private static void AddRegisterations(ContainerBuilder builder)
        {
            //builder.RegisterModule(new MyCustomerWebAutoFacModule());
        }
    }
}

From now for each new assembly you add to the project add a new module and then register the module in the AddRegisterations function (example given)

Note:

I returned the container, this isn't necessary.

This scans the current assembly for modules so don't add local modules in AddRegisterations otherwise you will register everything twice.