Autofac dependency resolver passes the same value for parameters when resolving the service

Question

I am using Autofac for IoC in ASP .Net MVC 4 app.

I am not able to figure out why the dependency resolver is passing the same value for different parameters when resolving a dependency.

Here is how I am registering:

private void RegisterDependencyResolver()
{
    var builder = new ContainerBuilder();

    builder.RegisterControllers(Assembly.GetExecutingAssembly());

    builder.Register(x => new AESCryptographyService()).As<ICryptographyService>();
    builder.RegisterType<AppContext>().As<IContext>();

    IContainer container = builder.Build();
    DependencyResolver.SetResolver(new AutofacDependencyResolver(container));
}

---

Here is how I am resolving IContext:

var factory = _dependencyResolver.GetService<Func<string, string, string, IContext>>();
IContext context = factory(contextToken, hostUrl, request.Url.Authority);

---

Here is my AppContext:

internal class AppContext : IContext
{
    public AppContext(string contextToken, string hostUrl, string appUrl)
    {
        AppUrl = appUrl;
        HostUrl = hostUrl;
        ContextToken = contextToken;
    }

    public string AppUrl { get; private set; }

    public string ContextToken { get; private set; }

    public string HostUrl { get; private set; }
}

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Please have a look at this screenshot. Even though contextToken, hostUrl, and request.Url.Authority have different values, in the constructor of AppContext all the values are set to the value of contextToken.

---

Answer 1

Figured it out!

I had to replace this:

var factory = _dependencyResolver.GetService<Func<string, string, string, IContext>>();
IContext context = factory(contextToken, hostUrl, request.Url.Authority);

with this:

var context =
    _dependencyResolver.RequestLifetimeScope.Resolve<IContext>(
        new NamedParameter("contextToken", contextToken), 
        new NamedParameter("hostUrl", hostUrl),
        new NamedParameter("appUrl", request.Url.Authority));