/// <inheritdoc />
public async Task StartAsync(CancellationToken cancellationToken)
{
_logger.Debug($"Bot service is starting");
CancellationTokenSource.CreateLinkedTokenSource(Token, cancellationToken);
Token.Register(() =>
{
_logger.Info($"Bot service stopping");
}, true);
string token = _botHelper.GetBotToken();
if (string.IsNullOrEmpty(token))
{
_stoppingCts.Cancel();
}
else
{
_botClient = new TelegramBotClient(token);
}
// StartReceiving does not block the caller thread. Receiving is done on the ThreadPool.
_executingTask = new Task(() =>
{
_botClient.StartReceiving(new DefaultUpdateHandler(HandleUpdateAsync, HandleErrorAsync),
Token);
_logger.Info($"Telegram bot started receiveing");
}, Token);
try
{
_executingTask.Start();
_logger.Debug("Telegram bot initiated");
}
catch (OperationCanceledException)
{
_logger.Debug($"Работа бота отменена");
}
catch (Exception)
{
_logger.Error($"Работа бота отменена, не найден токен бота");
}
await _executingTask;
}
