Method add_notify_handler

psycopg/psycopg/_connection_base.py:355–362

Register a callable to be invoked whenever a notification is received. :param callback: the callback to call upon notification received. :type callback: Callable[[~psycopg.Notify], None]

(self, callback: NotifyHandler)

                logger.exception("error processing notice callback '%s': %s", cb, ex)

    def add_notify_handler(self, callback: NotifyHandler) -> None:
        """
        Register a callable to be invoked whenever a notification is received.

        :param callback: the callback to call upon notification received.
        :type callback: Callable[[~psycopg.Notify], None]
        """
        self._notify_handlers.append(callback)

    def remove_notify_handler(self, callback: NotifyHandler) -> None:
        """