public interface INotificationManager
{
    Task<bool> SendNotification(string message);
}
    
public class NotificationManager : INotificationManager
{
    public async Task<bool> SendNotification(string message)
    {
        try
        {
            var hub = NotificationHubClient.CreateClientFromConnectionString(Constants.NotificationAccessKey, Constants.NotificationHubName);

            // Send the notification
            var result = await hub.SendAppleNativeNotificationAsync("{\"aps\":{\"alert\":\"" + message + "\", \"title\":\"" + message + "\", \"sound\":\"bingbong.aiff\"}}");

            return true;
        }
        catch (Exception)
        {
            return false;
        }
    }
}