private async Task NotifyNewMsg(string receipientusename, AppUser sender)
{
var clientConnection = await _presenceTracker.GetConnectionIdforOnlineUser(receipientusename);
if (clientConnection != null)
{
foreach (var connection in clientConnection)
{
await _presenceHub.Clients.Client(connection).SendAsync("NotifyNewMsg", new { username = sender.UserName, knownAs = sender.KnownAs });
}
}
}
