我只创建了一个Rails 5 API,我需要创建一个实时网络通知。
使用ActionCable可以实现吗?有没有人有Action Cable或任何其他解决方案的例子?
提前致谢。
答案 0 :(得分:5)
这是一个网络通知渠道,允许您在向正确的广播流广播时触发客户端网络通知:
创建服务器端Web通知渠道:
# app/channels/web_notifications_channel.rb
class WebNotificationsChannel < ApplicationCable::Channel
def subscribed
stream_for current_user
end
end
创建客户端网络通知频道订阅:
# app/assets/javascripts/cable/subscriptions/web_notifications.coffee
# Client-side which assumes you've already requested
# the right to send web notifications.
App.cable.subscriptions.create "WebNotificationsChannel",
received: (data) ->
new Notification data["title"], body: data["body"]
从应用程序的其他位置向Web通知渠道实例广播内容:
# Somewhere in your app this is called, perhaps from a NewCommentJob
WebNotificationsChannel.broadcast_to(
current_user,
title: 'New things!',
body: 'All the news fit to print'
)
WebNotificationsChannel.broadcast_to
调用将消息放在当前订阅适配器的pubsub队列中,每个用户使用一个单独的广播名称。对于ID为1的用户,广播名称为web_notifications:1
。