registry.cs

    public class MyRegistry : Registry
    {
        public PosifonIntegrationServicesRegistry()
        {
            For<DateTimeProvider>().Use(() => DateTimeProvider.Default);

            For<DeviceMessageHandler>().Use<DeviceMessageHandler>();

            var connectionString = ConfigurationManager
                .ConnectionStrings["redacted"]
                .ConnectionString;

            For<IMyDataContext>()
                .Use<MyDataContext>()
                .Ctor<string>("connectionstring")
                .Is(connectionString);

            For<MyDataContext>()
                .Use<MyDataContext>()
                .Ctor<string>("connectionstring")
                .Is(connectionString);


            Scan(scanner =>
            {
                scanner.TheCallingAssembly();
                scanner.AssemblyContainingType<MyDataContext>();
                scanner.AssemblyContainingType<UserService>();
                scanner.WithDefaultConventions();
                
            });

            var metrics = AppMetrics
                .CreateDefaultBuilder()
                .Configuration.Configure(options => options.AddServerTag())
                .OutputMetrics.AsJson()
                .Build();

            For<IMetrics>()
                .Use(metrics);
        }
    }