Telegram notifications

[impovich]

Is there anyone who managed to configure telegram notifications? It looks like the test alert is broken, so have no idea if it works or not.

Code:

[2021/06/06 12:16:46] (ERROR) AlertServiceService.test():1046 - Error in alert service 'Telegram'
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/middlewared/plugins/alert.py", line 1044, in test
    await alert_service.send([test_alert], [], [test_alert])
  File "/usr/lib/python3/dist-packages/middlewared/alert/base.py", line 269, in send
    return await self.middleware.run_in_thread(self.send_sync, alerts, gone_alerts, new_alerts)
  File "/usr/lib/python3/dist-packages/middlewared/utils/run_in_thread.py", line 10, in run_in_thread
    return await self.loop.run_in_executor(self.run_in_thread_executor, functools.partial(method, *args, **kwargs))
  File "/usr/lib/python3/dist-packages/middlewared/utils/io_thread_pool_executor.py", line 25, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/usr/lib/python3/dist-packages/middlewared/alert/service/telegram.py", line 33, in send_sync
    r.raise_for_status()
  File "/usr/lib/python3/dist-packages/requests/models.py", line 943, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 400 Client Error: Bad Request for url: https://api.telegram.org/botBlaBlaToken/sendMessage