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Swoole Websocket Bundle

A bundle for websocket using swoole

Requirements

Intallation

Add the package

composer require cydrickn/swoole-websocket-bundle

Run the server

php ./bin/console websocket:server

Commands

websocket:server

Run the websocket server

Options Details Default
host The host of the server 127.0.0.1
port The port of the server 8000

Events

This bundle will have an event where you can listen

\Cydrickn\SwooleWebsocketBundle\Event\OpenEvent

This event will be trigger once a client have been connected to the server.

\Cydrickn\SwooleWebsocketBundle\Event\MessageEvent

This event will be trigger once the client send a message

\Cydrickn\SwooleWebsocketBundle\Event\CloseEvent

This event will be trigger once a client have been disconnected

Client connection using Javascript

For the basic way on connecting to websocket you can use the Browser Websocket

const socket = new WebSocket('ws://localhost:8080');

// Connection opened
socket.addEventListener('open', (event) => {
    socket.send('Hello Server!');
});

// Listen for messages
socket.addEventListener('message', (event) => {
    console.log('Message from server ', event.data);
});

Use it in runtime

Using the command is fine, but if you happen you want to serve this using symfony runtime you can do so.

  1. First you need to include symfony/runtime
    composer require symfony/runtime
  2. Next run your public/index.php with env APP_RUNTIME
    APP_RUNTIME=\\Cydrickn\\SwooleWebsocketBundle\\Runtime\\Runtime php ./public/index.php

Runtime Configuration

For runtime configuration you can add it to your public/index.php

Key Details Default
host The host of the server 127.0.0.1
port The port of the server 8000
mode The mode for server 2 / SWOOLE_PROCESS
sock_type The socket type for server 1 / SWOOLE_SOCK_TCP
settings The setting is base on swoole configuration [] / Empty Array
serve_http Include to serve HTTP false

Example:

#!/usr/bin/env php
<?php

use App\Kernel;

$_SERVER['APP_RUNTIME_OPTIONS'] = [
    'host' => '0.0.0.0',
    'port' => 8000,
    'mode' => SWOOLE_PROCESS,
    'settings' => [
        \Swoole\Constant::OPTION_WORKER_NUM => swoole_cpu_num() * 2,
        \Swoole\Constant::OPTION_ENABLE_STATIC_HANDLER => true,
        \Swoole\Constant::OPTION_DOCUMENT_ROOT => dirname(__DIR__).'/public'
    ],
];

require_once dirname(__DIR__).'/vendor/autoload_runtime.php';

return function (array $context) {
    return new Kernel($context['APP_ENV'], (bool) $context['APP_DEBUG']);
};

Also instead of having to server for websocket and http, you can just enable the Serve HTTP, by setting the serve_http to true

Hot reloading

We already include a hor reloading for this bundle. To enable it you need to first require cydrickn/php-watcher

Hot reloading is only available if you are using runtime

composer require cydrickn/php-watcher

Now add to your APP_RUNTIME_OPTIONS the hotReload The basePath should be your project folder

$_SERVER['APP_RUNTIME_OPTIONS'] = [
    'host' => '0.0.0.0',
    'port' => 8000,
    'mode' => SWOOLE_PROCESS,
    'hotReload'=> [
        'enabled' => true,
        'basePath' => dirname(__DIR__),
    ],
    'settings' => [
        \Swoole\Constant::OPTION_WORKER_NUM => swoole_cpu_num() * 2,
        \Swoole\Constant::OPTION_ENABLE_STATIC_HANDLER => true,
    ],
];

Socket IO

In this bundle you can also enable using socket.io implementation, to enable it first you need to install cydrickn/socketio

This implementation is only available if you are using runtime

composer require cydrickn/socketio

Now add to your APP_RUNTIME_OPTIONS set the socketio to true

$_SERVER['APP_RUNTIME_OPTIONS'] = [
    'socketio' => true,
    'host' => '0.0.0.0',
    'port' => 8000,
    'mode' => SWOOLE_PROCESS,
    'settings' => [
        \Swoole\Constant::OPTION_WORKER_NUM => swoole_cpu_num() * 2,
        \Swoole\Constant::OPTION_ENABLE_STATIC_HANDLER => true,
    ],
];

Adding a route to socket io

For pure socket io you will do this

$server->on('connection', function (\Cydrickn\SocketIO\Socket $socket) {
    $socket->emit('hello', 'world');
});

$server->on('chat', function (\Cydrickn\SocketIO\Socket $socket, $message) {
    $socket->broadcast()->emit('chat', $message);
});

You will use the Attribute Route of this bundle Cydrickn\SwooleWebsocketBundle\Attribute\RouteAttribute In any of your service

<?php
namespace App\Controller;

use Cydrickn\SwooleWebsocketBundle\Attribute\RouteAttribute;

class SocketController
{
   #[RouteAttribute(path: 'connection')]
   public function connection(\Cydrickn\SocketIO\Socket $socket)
   {
      $socket->emit('hello', 'world');
   }
   
   #[RouteAttribute(path: 'chat')]
   public function anotherMethod(\Cydrickn\SocketIO\Socket $socket, $message)
   {
      $socket->broadcast()->emit('chat', $message);
   }
}

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