public bool IsUserOnline(string userId)
{
_logger.LogDebug("Trying to check if user :{userId) is online.", userId);
if (string.IsNullOrWhiteSpace(userId))
{
throw new ArgumentNullException(nameof(userId));
}
try
{
OnlineUser onlineUser = _onlineUsersRepository.GetById(userId);
return(onlineUser != null);
}
catch (Exception ex)
{
_logger.LogError(ex, "Error occured during checking if user :{userId) is online.", userId);
throw;
}
}
