python.py 文件源码

def get_channel_events(self, channel_address, from_block, to_block=None):
        if not isaddress(channel_address):
            raise InvalidAddress(
                'Expected binary address format for channel in get_channel_events'
            )
        returned_events = get_all_netting_channel_events(
            self.raiden.chain,
            channel_address,
            events=ALL_EVENTS,
            from_block=from_block,
            to_block=to_block,
        )
        raiden_events = self.raiden.transaction_log.get_events_in_block_range(
            from_block=from_block,
            to_block=to_block
        )
        # Here choose which raiden internal events we want to expose to the end user
        for event in raiden_events:
            is_user_transfer_event = isinstance(event.event_object, (
                EventTransferSentSuccess,
                EventTransferSentFailed,
                EventTransferReceivedSuccess
            ))

            if is_user_transfer_event:
                new_event = {
                    'block_number': event.block_number,
                    '_event_type': type(event.event_object).__name__,
                }
                new_event.update(event.event_object.__dict__)
                returned_events.append(new_event)

        return returned_events