Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using MobileClient.Core;

namespace MobilseClient.ConsoleApp
{
    class Program
    {
        static void Main(string[] args)
        {
            var client = new MyClient();
            Console.WriteLine(client.Put(new MyData {UserId = "1", Text = "ほげほげ"}).Result["message"]);
            Console.WriteLine(client.Put(new MyData { UserId = "2", Text = "ふがふが" }).Result["message"]);
            Console.WriteLine(client.Put(new MyData { UserId = "3", Text = "もげもげ" }).Result["message"]);
            Console.WriteLine(client.Get("3").Result.First().Text);
            Console.WriteLine(client.Get("4").Result.Any() ? "ありえない" : "そんなひといません");
            Console.Read();
        }
    }
}