private async Task registerDeviceAsync()
{
// register the device with the backend
string device_id = "a-" + CrossDeviceInfo.Current.Id;
DatabaseAPI dbase = new DatabaseAPI();
var response = await dbase.GetRegistrationInfo(device_id);
if (response != null && (string)response["status"] == "error")
{
// device was not found in DB, so register as a new user
var reg_response = await dbase.RegisterNewDevice(device_id, "Android", Android.OS.Build.VERSION.Sdk);
if (reg_response != null && (string)reg_response["status"] != "ok")
{
Console.WriteLine("registerNewDevice Error: " + (string)reg_response["message"]);
}
}
}