ActionCable.server.broadcast from the console

Question

I can use the following code in the controller but not in the console (both development environment). I'm using Rails 5.0.0.beta2.

ActionCable.server.broadcast 'example_channel', message: '<p>Test</p>'

The console:

>> ActionCable.server.broadcast 'example_channel', message: '<p>Test</p>'
[ActionCable] Broadcasting to example_channel: {:message=>"<p>Test</p>"}
=> []

How can I use it in the console?

score 86 · Accepted Answer · answered Feb 09 '16 at 23:50

86

The default behavior for ActionCable in development mode is to use the async adapter, which operates within the same process only. For inter-process broadcasting, you will need to switch to the redis adapter.

To enable redis in development mode, you will need to edit config/cable.yml:

redis: &redis
  adapter: redis
  url: redis://localhost:6379/1

production: *redis
development: *redis
test: *redis

answered Feb 09 '16 at 23:50

Sam Pohlenz

876
7
3

im having `Redis::CannotConnectError: Error connecting to Redis on localhost:6379 (Errno::ECONNREFUSED)` on my Mac. :( – Yakob Ubaidi Jun 25 '16 at 20:19
1

@YakobUbaidi do you have the latest version of Redis installed and running at the same time as your rails server? – sam Jul 19 '16 at 07:50
4

Try `brew install redis`, then: `redis-server /usr/local/etc/redis.conf` – sekrett Jul 27 '16 at 12:37
i still get this error NoMethodError: undefined method `fetch' for nil:NilClass – Tim Kretschmer Aug 13 '16 at 20:31
3

Thanks for this answer! You should also make sure including gem 'redis' on your Gemfile. – Sebastian Kim Nov 15 '16 at 10:05
Great, thank you! this was the fix of the issue i was having, basically i wasnt able to broadcast from my workers and syncing my views – d1jhoni1b Apr 18 '18 at 21:38

ActionCable.server.broadcast from the console

1 Answers1

Linked