php-laravelHow do I set up a websocket connection using Laravel and PHP?

1. Install the ratchet/pawl package with composer:

composer require cboden/ratchet

2. Create a WebsocketServer class in app/Websockets and extend the Ratchet\MessageComponentInterface class:

<?php

namespace App\Websockets;

use Ratchet\MessageComponentInterface;

class WebsocketServer implements MessageComponentInterface
{
    // ...
}

3. Implement the onOpen, onMessage, onClose, and onError methods in the WebsocketServer class:

public function onOpen(ConnectionInterface $conn)
{
    // ...
}

public function onMessage(ConnectionInterface $from, $msg)
{
    // ...
}

public function onClose(ConnectionInterface $conn)
{
    // ...
}

public function onError(ConnectionInterface $conn, \Exception $e)
{
    // ...
}

4. Create a route in routes/websockets.php to handle the websocket connection:

<?php

use App\Websockets\WebsocketServer;
use Ratchet\Http\HttpServer;
use Ratchet\Server\IoServer;
use Ratchet\WebSocket\WsServer;

$server = IoServer::factory(
    new HttpServer(
        new WsServer(
            new WebsocketServer()
        )
    ),
    8080
);

$server->run();

5. Start the websocket server in the terminal:

php artisan websockets:serve

6. Use JavaScript to connect to the websocket server:

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

socket.onopen = function(e) {
    console.log('Connection established');
};

socket.onmessage = function(e) {
    console.log(e.data);
};

socket.onclose = function(e) {
    console.log('Connection closed');
};

7. Finally, open a browser and navigate to http://localhost:8080 to establish the websocket connection.

Helpful links

• Laravel Websockets Documentation
• Ratchet Documentation

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