如何发送网络推送通知

Question

我在后台作为管理面板有一个运行Laravel的Angular PWA。当管理员在后端创建新闻时，我想将Web推送通知发送到PWA应用程序。没有用户注册，它是一个简单的网站。

我希望收到On信号或FCM推送通知。

任何带有示例的有用站点都将受到赞赏。

Answer 1

您可以使用laravel + redis + socket.io + socket client来做到这一点：

$ cd your-project

1。安装软件包：

$ npm install express ioredis socket.io --save

2。您的package.json文件将如下所示：

{
  "private": true,
  "devDependencies": {
    "gulp": "^3.8.8",
    "laravel-elixir": "*"
  },
  "dependencies": {
    "express": "^4.12.4",
    "ioredis": "^1.4.0",
    "redis": "^0.12.1",
    "socket.io": "^1.3.5"
  }
}

composer require predis/predis

3。在Laravel中创建事件：

php artisan make:event WebPush

4。整个WebPush.php类应如下所示：

<?php namespace App\Events;

use App\Events\Event;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
use Illuminate\Queue\SerializesModels;

class WebPush extends Event implements ShouldBroadcast
{
    use SerializesModels;

    public $data;

    public function __construct()
    {
        $this->data = array(
            'power'=> '10'
        );
    }

    public function broadcastOn()
    {
        return ['test-channel'];
    }
}

5。在Angular中使用以下代码：

<script src="js/socket.io.js'"></script>
    <script>
        //var socket = io('http://localhost:3000');
        var socket = io('http://192.168.10.10:3000');
        socket.on("test-channel:App\\Events\\EventName", function(message){
            // increase the power everytime we load test route
            $('#power').text(parseInt($('#power').text()) + parseInt(message.data.power));
        });
    </script>

6。这样设置三个路线。将它们添加到您的app/Http/routes.php文件中：

Route::get('/', function() {
    // this doesn't do anything other than to
    // tell you to go to /fire
    return "go to /fire";
});

Route::get('fire', function () {
    // this fires the event
    event(new App\Events\EventName());
    return "event fired";
});

Route::get('test', function () {
    // this checks for the event
    return view('test');
});

7。在项目根目录中创建socket.js文件：

var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
var Redis = require('ioredis');
var redis = new Redis();
redis.subscribe('test-channel', function(err, count) {
});
redis.on('message', function(channel, message) {
    console.log('Message Recieved: ' + message);
    message = JSON.parse(message);
    io.emit(channel + ':' + message.event, message.data);
});
http.listen(3000, function(){
    console.log('Listening on Port 3000');
});

PS：

确保已安装redis服务器，并使用Laravel或数据库文件将其连接到.env。