Sending messages to django channel group outside of consumers

[Gene]

I'm trying to send messages to channels outside of consumers, as said in documentation but can't get a result.

For example, 

in consumers.py I have:

def channel_send(channel, data):

    channel.send({

        'text': json.dumps(data)

    })

def group_send(kind, data):

    data = {

        'kind': kind,

        'data': data

    }

    channel_send(Group(kind), data)

def ws_connect(message):

    Group("location_update").add(message.reply_channel)

    channel_send(message.reply_channel, {'accept': True})

    group_send('location_update', {'msg': 'connected'})

def ws_disconnect(message):

    # Remove from reader group on clean disconnect

    Group("location_update").discard(message.reply_channel)

def ws_message(message):

    group_send('location_update', {'msg': 'connected'})

When I send message from browser over websocket, I got a response in console:
{"kind": "location_update", "data": {"msg": "connected"}}

but, for example, when I try to use group_send function inside management command, or if I try to use group_send in python manage.py shell regime from shell - I don't get anything in the browser

channels==1.0.1

What may be the issue?

[Andrew Godwin]

That code looks correct. What channel layer are you using?

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[Gene]

I tried first with inmemory, then with asgi_redis.RedisChannelLayer

same result

working in runserver mode

четверг, 12 января 2017 г., 2:06:15 UTC+3 пользователь Andrew Godwin написал:

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[Andrew Godwin]

It will only work with a Redis channel layer - in memory does not transport things across processes. As long as everything being used has the same channel layer settings and talks to the same Redis, I don't see why it wouldn't work.

Andrew

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[Gene]

so, should it theoretically work in combination when runserver is launched and I'm running in python manage.py shell ?

in case I will not be able to find a solution, I'll try to reproduce it on some special small project

четверг, 12 января 2017 г., 2:11:16 UTC+3 пользователь Andrew Godwin написал:

[Andrew Godwin]

Yes, as long as the management command uses the same settings and talks to the same Redis server, it should all intercommunicate. If you can get it reproducible I can definitely help more.

Andrew

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[Andrew Godwin]

Oh, disregard that, cross-checking with the django-channels IRC channel I see that it's the new message buffering behaviour going awry. You can track the status of the fix in https://github.com/django/channels/issues/481

[Gene]

I managed to reproduce it in small project:

see here test case:

https://github.com/emakarov/chantest

четверг, 12 января 2017 г., 2:26:37 UTC+3 пользователь Andrew Godwin написал:

[Gene]

After accepting your patch it started to work! :-)

четверг, 12 января 2017 г., 3:04:10 UTC+3 пользователь Gene написал:

[Gene]

waiting for update in pip ..

четверг, 12 января 2017 г., 3:09:50 UTC+3 пользователь Gene написал:

[Andrew Godwin]

Yup, I'm waiting on one more pull request to land and I'll issue a 1.0.2 release to address the issue.

Andrew

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