module ActionCable::Helpers::ActionCableHelper

=>
<%= action_cable_meta_tag %> would render:
config.action_cable.url = "ws://actioncable.com"

=>
<%= action_cable_meta_tag %> would render:
config.action_cable.mount_path = "/cable123"

config files:
Make sure to specify the correct server location in each of your environment

App.cable = Cable.createConsumer()
window.App = {}
window.Cable = require("@rails/actioncable")

URL directly:
Your JavaScript can then connect to the server without needing to specify the
This is then used by Action Cable to determine the URL of your WebSocket server.


<%= javascript_include_tag 'application', 'data-turbolinks-track' => 'reload' %>
<%= action_cable_meta_tag %>


configuration. Ensure this is above your JavaScript tag:
Returns an "action-cable-url" meta tag with the value of the URL specified in your

def action_cable_meta_tag
  tag "meta", name: "action-cable-url", content: (
    ActionCable.server.config.url ||
    ActionCable.server.config.mount_path ||
    raise("No Action Cable URL configured -- please configure this at config.action_cable.url")
  )
end