public async Task <int> GetUserCountFb(string email)
        {
            ConnectToFirebase();

            //string userName = DAO.GetUserID();
            String myUsername = email;

            myUsername = myUsername.Replace(".", "-");
            String node   = "CounterRecord" + "/";
            int    cntNum = 0;

            FbCnt fbCnt = new FbCnt
            {
                username = myUsername,
            };

            var results = await firebase.Child(node).OnceAsync <FbCnt>();

            foreach (var details in results)
            {
                if (details.Object.username == myUsername)
                {
                    cntNum = details.Object.cnt;
                    break;
                }
            }

            return(cntNum);
        }
        /// <summary>
        /// Create a counter record in Firebase. Is created once per user  when they create an accoount.
        /// </summary>
        /// <param name="counterNum"></param>
        public async void CreateCountRecordFB1(int counterNum)
        {
            ConnectToFirebase();

            string userName   = DAO.GetUserID();
            String myUsername = userName;

            myUsername = myUsername.Replace(".", "-");
            String node = "CounterRecord" + "/";

            FbCnt fbCnt = new FbCnt
            {
                cnt      = counterNum,
                username = myUsername,
            };

            await firebase.Child(node).PostAsync <FbCnt>(fbCnt);
        }
        /// <summary>
        /// Update Firebase count
        /// </summary>
        /// <param name="counterNum"></param>
        public async void UpdateCountRecordFB(int counterNum)
        {
            ConnectToFirebase();

            try
            {
                string userName   = DAO.GetUserID();
                String myUsername = userName;
                myUsername = myUsername.Replace(".", "-");
                String node = "CounterRecord" + "/";

                FbCnt fbCnt = new FbCnt
                {
                    cnt      = counterNum,
                    username = myUsername,
                };

                var results = await firebase.Child(node).OnceAsync <FbCnt>();

                foreach (var details in results)
                {
                    if (details.Object.username == myUsername)
                    {
                        //Delete the old row by key Id
                        await firebase.Child(node).Child(details.Key).DeleteAsync();
                    }
                }

                //Add a new row.
                await firebase.Child(node).PostAsync <FbCnt>(fbCnt);
            }
            catch
            {
                Debug.WriteLine("No Internet Connection");
            }
        }