Nancy bootstrapper that sets request pipeline logging with and Serilog

Bootstrapper.cs

using Nancy;
using Nancy.Bootstrapper;
using Nancy.TinyIoc;
using Serilog;
using System.Diagnostics;

namespace MyApp.Bootstrappers
{
    public class Bootstrapper : DefaultNancyBootstrapper
    {
        protected override void ConfigureApplicationContainer(TinyIoCContainer container)
        {
            base.ConfigureApplicationContainer(container);
        }

        protected override void RequestStartup(TinyIoCContainer container, IPipelines pipelines, NancyContext context)
        {
            var sw = new Stopwatch();

            pipelines.BeforeRequest.AddItemToStartOfPipeline(ctx =>
            {
                if (ctx != null)
                {
                    sw.Start();
                }
                return null;
            });

            pipelines.AfterRequest.AddItemToEndOfPipeline(ctx =>
            {
                if (ctx != null)
                {
                    sw.Stop();
                   
                    Log.Information("HTTP {RequestMethod} {RequestPath} from {IpAddress} responded {StatusCode} in {Elapsed:0.0000} ms", context.Request.Method, context.Request.Path, context.Request.UserHostAddress, (int)context.Response.StatusCode, sw.Elapsed.TotalMilliseconds);
                }
            });
            base.RequestStartup(container, pipelines, context);
        }
    }
}