nancy.cs

public class NancyDemoModule : NancyModule
{
    public NancyDemoModule(IResourceLinker linker)
    {
        Get["HelloWorldRoute", "/nancy/demo/{MyQueryParameter:string}"] =
            parameters => new[] {"Hello", "World", (string) parameters.MyQueryParameter};

        Get["FindHelloWorld", "/nancy/findhelloworld"] = parameters => new[]
        {
            linker.BuildAbsoluteUri(Context, "HelloWorldRoute", new {MyQueryParameter = "CodeOpinion"})
        };
    }
}