gistfile1.txt

    public abstract class BaseModule : NancyModule
    {
        protected readonly int Version;

        protected BaseModule(string moduleName, int? version)
            : base((version == null ? "/" : "/v" + version) + "/" + moduleName)
        {
            Version = !version.HasValue ? 1 : version.Value;
        }
    }

    public class PointlessModuleVersionLess : PointlessModule { public PointlessModuleVersionLess() : base(null) { } }
    public class PointlessModule : BaseModule
    {
        public PointlessModule() : this(1)
        {
        }

        public PointlessModule(int? ver)
            : base("/Pointless/", ver)
        {
            MapMethods();
        }


        private void MapMethods()
        {
            Get["/"] = parameters =>
            {
                return
                    Negotiate.WithModel(new {success = true})
                        .WithStatusCode(HttpStatusCode.OK)
                        .WithHeader("X-Api-Version", Version.ToString());
            };
        }
    }

    public class PointlessModuleV2 : BaseModule
    {
        public PointlessModuleV2()
            : base("/Pointless/", 2)
        {
            Get["/"] = parameters =>
            {
                return
                  Negotiate.WithModel(new { success = true })
                           .WithStatusCode(HttpStatusCode.OK)
                           .WithHeader("X-Api-Version", Version.ToString());
            };
        }
    }