Setting up AAD Authentication in a Project with Autofac - azure

Question

I have a web API that has AAD auth (in code because it runs in IaaS not PaaS) it works well, but if I add Autofac configuration to the Startup.cs, the Authentication breaks, (if I put Autofac after Auth inizialization Autofac breaks) which makes me think that the configurations are overwriting eachother.
I have tried to find any documentation on how to use both of them together but I have not been able to find any information. One Uses HttpConfiguration and the other uses the IAppBuilder and I don't know how to combine them for them to work together.
here is my Authentication code:
public void ConfigureAuth(IAppBuilder app)
{
app.SetDefaultSignInAsAuthenticationType(CookieAuthenticationDefaults.AuthenticationType);
app.UseCookieAuthentication(new CookieAuthenticationOptions());
app.Map("/api", inner =>
{
inner.UseWindowsAzureActiveDirectoryBearerAuthentication(new WindowsAzureActiveDirectoryBearerAuthenticationOptions()
{
Tenant = tenant,
TokenValidationParameters = new Tokens.TokenValidationParameters
{
ValidAudience = Audience
}
});
});
}
and here is the Autofac Code
public static void Register(HttpConfiguration configuration)
{
var builder = new ContainerBuilder();
Bootstrapper.Configure(builder);
var container = builder.Build();
configuration.DependencyResolver = new AutofacWebApiDependencyResolver(container);
}
what are the best practices for using these two tools together?

Answer 1

I was not properly setting all the WebAPI autofac references to get all the dependencies I followed this Quick start and then Added my references. Bellow is the new ConfigureAutofac function (the configure auth stayed the same)
private void ConfigureAutofac(IAppBuilder app)
{
//Autofac info from https://autofaccn.readthedocs.io/en/latest/integration/webapi.html#quick-start
var builder = new ContainerBuilder();
// STANDARD WEB API SETUP:
// Get your HttpConfiguration. In OWIN, you'll create one
// rather than using GlobalConfiguration.
var config = new HttpConfiguration();
// Register your Web API controllers.
builder.RegisterApiControllers(Assembly.GetExecutingAssembly()); //Register WebApi Controllers
builder.RegisterType<AutofacManager>().As<IAutofacManager>();
builder.RegisterSource(new AnyConcreteTypeNotAlreadyRegisteredSource());
var container = builder.Build();
config.DependencyResolver = new AutofacWebApiDependencyResolver(container);
GlobalConfiguration.Configuration.DependencyResolver = new AutofacWebApiDependencyResolver((IContainer)container); //Set the WebApi DependencyResolver
// and finally the standard Web API middleware.
app.UseAutofacMiddleware(container);
app.UseAutofacWebApi(config);
app.UseWebApi(config);
}