AppHost.cs

using System.Reflection;
using Autofac;
using Autofac.Core.Lifetime;
using Funq;
using Serilog;
using ServiceStack.Api.Postman;
using ServiceStack.Api.Swagger;
using ServiceStack.Logging;
using ServiceStack.Logging.Serilog;
using ServiceStack.ServiceInterface.Cors;
using ServiceStack.ServiceInterface.Validation;
using ServiceStack.WebHost.Endpoints;
using ServiceStack.WebHost.Endpoints.Formats;

namespace Services.API
{
    public class AppHost : AppHostHttpListenerBase
    {
        private readonly IContainer _container;
        public static Assembly[] IncludedAssemblies { get; set; }
        private ILifetimeScope _scope;

        public AppHost(IContainer container) : base("API", IncludedAssemblies)
        {
            _container = container;
        }

        public override void Configure(Container container)
        {
            LogManager.LogFactory = new SerilogFactory(Log.Logger);
            var adapter = new AutofacIocAdapter(_container);
            container.Adapter = adapter;

            Plugins.Add(new SwaggerFeature());
            Plugins.Add(new ValidationFeature());
            Plugins.Add(new PostmanFeature { LocalOnly = false });
            Plugins.Add(new CorsFeature()); 
            container.RegisterValidators(IncludedAssemblies);

            HtmlFormat.HtmlTitleFormat = "Snapshot of <i>{0}</i> generated on <b>{1}</b>";

            RequestFilters.Add((req, resp, dto) =>
            {
                _scope = _container.BeginLifetimeScope(MatchingScopeLifetimeTags.RequestLifetimeScopeTag);
                CurrentContext.Scope = _scope;
            });

            ResponseFilters.Add((req, resp, dto) =>
            {
                _scope.Dispose();
                CurrentContext.Scope = null;
            });
        }

    }
}