Rails Action Cable #

rails generate channel Chat

class ChatChannel < ApplicationCable::Channel
  def subscribed
    stream_from "chat_#{params[:room]}"
  end
  
  def speak(data)
    ActionCable.server.broadcast "chat_#{params[:room]}", message: data['message']
  end
end

const chat = consumer.subscriptions.create("ChatChannel", {
  received(data) {
    console.log(data.message)
  }
})

chat.speak({ message: 'Hello' })