rest-aurant client

gistfile1.cs

    class Program
    {
        private const string REL_RESTAURANT_LIST = "http://rest.aurant.org/restaurant-list";
        static void Main(string[] args)
        {
            var restaurantHref = DiscoverRestaurantListUri();
            Console.WriteLine("Using " + restaurantHref);

            var selectedRestaurant = SelectRestaurantUri(restaurantHref);
            Console.WriteLine("Using " + selectedRestaurant);
        }

        private static Uri SelectRestaurantUri(Uri restaurantHref)
        {
            var document = XDocument.Load(restaurantHref.ToString())
                                    .ItemScope("http://schema.org/Restaurant", "name", "address", "url")
                                    .ToList();

            foreach (var restaurant in document)
            {
                Console.WriteLine("{0}. {1} - {2}", 
                    document.IndexOf(restaurant) + 1, restaurant["name"], restaurant["url"]);
            }
            var selected = int.Parse(Console.ReadLine());
            return new Uri(document.ElementAt(selected - 1)["url"], UriKind.Absolute);
        }

        private static Uri DiscoverRestaurantListUri()
        {
            const string defaultHref = "http://localhost:40372";
            Console.Write("Enter server (default {0}):", defaultHref);
            var inputUri = Console.ReadLine() ?? defaultHref;

            var req = WebRequest.Create(inputUri);
            var response = req.GetResponse();
            var linkHeader = response.GetLinkValue(REL_RESTAURANT_LIST);
            var baseUri = new Uri(inputUri, UriKind.Absolute);
            var linkUri = new Uri(linkHeader, UriKind.RelativeOrAbsolute);
            return new Uri(baseUri, linkUri);
        }
    }