Ruby on Rails
액션 케이블
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비고
ActionCable 은 Rails 4.x에서 사용할 수 있었으며 Rails 5에 번들되었습니다. 서버와 클라이언트 간의 실시간 통신을 위해 웹 소켓을 쉽게 사용할 수 있습니다.
[기본] 서버 측
# app/channels/appearance_channel.rb
class NotificationsChannel < ApplicationCable::Channel
def subscribed
stream_from "notifications"
end
def unsubscribed
end
def notify(data)
ActionCable.server.broadcast "notifications", { title: 'New things!', body: data }
end
end
[기본] 클라이언트 측 (Coffeescript)
app / assets / javascripts / channels / notifications.coffee
App.notifications = App.cable.subscriptions.create "NotificationsChannel",
connected: ->
# Called when the subscription is ready for use on the server
$(document).on "change", "input", (e)=>
@notify(e.target.value)
disconnected: ->
# Called when the subscription has been terminated by the server
$(document).off "change", "input"
received: (data) ->
# Called when there's incoming data on the websocket for this channel
$('body').append(data)
notify: (data)->
@perform('notify', data: data)
app / assets / javascripts / application.js # 일반적으로 다음과 같이 생성됩니다.
//= require jquery
//= require jquery_ujs
//= require turbolinks
//= require_tree .
app / assets / javascripts / cable.js # 일반적으로 다음과 같이 생성됩니다.
//= require action_cable
//= require_self
//= require_tree ./channels
(function() {
this.App || (this.App = {});
App.cable = ActionCable.createConsumer();
}).call(this);
사용자 인증
# app/channels/application_cable/connection.rb
module ApplicationCable
class Connection < ActionCable::Connection::Base
identified_by :current_user
def connect
self.current_user = find_verified_user
logger.add_tags 'ActionCable', current_user.id
# Can replace current_user.id with usernames, ids, emails etc.
end
protected
def find_verified_user
if verified_user = env['warden'].user
verified_user
else
reject_unauthorized_connection
end
end
end
end
Modified text is an extract of the original Stack Overflow Documentation
아래 라이선스 CC BY-SA 3.0
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