DjangoChannels: How send message to groups on AsyncJsonWebsocketConsumer.disconnect()?

[Vladimir Kalyuzhny]

Please suggest to me a workaround on how to send message to groups on AsyncJsonWebsocketConsumer.disconnect()?

class UserConsumer(AsyncJsonWebsocketConsumer):

    ... // some code

    async def disconnect(self, close_code: str) -> None:

        channel_layer = get_channel_layer()

        await channel_layer.group_send(

            "some_group", {"type": "send_message", "message": "some test message"},

        )

This is a simple example of my code. When I do this, I've got error:

File "/home/user/.pyenv/versions/3.8.6/envs/venv38/lib/python3.8/site-packages/channels_redis/core.py", line 666, in group_send await connection.zremrangebyscore( aioredis.errors.ConnectionForcedCloseError

I think, disconnect() method is not the best place to send messages. If yes, what is a good place for this?

Some useful links:

• https://channels.readthedocs.io/en/latest/topics/consumers.html?#asyncwebsocketconsumer
• https://aioredis.readthedocs.io/en/v1.3.0/api_reference.html#aioredis.ConnectionForcedCloseError - my error that raised by aioredis