Azure MobileServiceClient

using Microsoft.WindowsAzure.MobileServices;
using Plugin.Connectivity;
using System.Threading.Tasks;

//-------------------------------------------------------------------------//
namespace WPC_Android.AppLayer
{
    //Factory class instance that initialize the connection with Azure Mobile Service
    public class AzureConnectionFactory
    {
        //-------------------------------------------------------------------------//
        //                             Data                                        //        
        //-------------------------------------------------------------------------//
        private MobileServiceClient _client;
        private static AzureConnectionFactory _instance;
        private const string _azureBackPoint = "YOUR_APP_BACKEND_LINK";
        //-------------------------------------------------------------------------//

        //-------------------------------------------------------------------------//
        //                             Constructors                                //        
        //-------------------------------------------------------------------------//

        //Inizialize the Mobile Service client
        public AzureConnectionFactory()
        {
            _client = new MobileServiceClient(_azureBackPoint);
            CurrentPlatform.Init();
        }
        //-------------------------------------------------------------------------//

        //-------------------------------------------------------------------------//
        //                            Main functions                               //        
        //-------------------------------------------------------------------------//
        //Get the instance or create if not exist
        public static AzureConnectionFactory Instance
        {
            get
            {
                if (_instance == null)
                {
                    _instance = new AzureConnectionFactory();
                }

                return _instance;
            }
        }
        //-------------------------------------------------------------------------//
        public MobileServiceClient GetClient()
        {
            return _client;
        }
        //-------------------------------------------------------------------------//
        //Check the internet connection to Azure back end
        public async Task<bool> IsConnected()
        {
            return await CrossConnectivity.Current.IsRemoteReachable(_azureBackPoint, 80, 6000);
        }
        //-------------------------------------------------------------------------//
    }
    //-------------------------------------------------------------------------//
}