Xamarin.Forms Http Helper class to call any Rest Web Service

HttpHelper.cs

//Se requiere tener instalado los paquetes de nuget: 
//Install-Package Microsoft.Net.Http     
//Install-Package Newtonsoft.Json 

public class HttpHelper<T>
    {
        public async Task<T> GetRestServiceDataAsync(string serviceAddress)
        {
            var client = new HttpClient();
            client.BaseAddress = new Uri(serviceAddress);
            var response = await client.GetAsync(client.BaseAddress);
            response.EnsureSuccessStatusCode();
            var jsonResult = response.Content.ReadAsStringAsync();
            var result = JsonConvert.DeserializeObject<T>(jsonResult.Result);
            return result;
        }
    }