websockets-single-app.php

<?php
// config/broadcasting.config

return [
//....
 'connections' => [
     'pusher' => [
                'driver' => 'pusher',
                'key' => env('PUSHER_APP_KEY'),
                'secret' => env('PUSHER_APP_SECRET'),
                'app_id' => env('PUSHER_APP_ID'), 
                'options' => [
                    'cluster' => env('PUSHER_APP_CLUSTER'),
                    'encrypted' => true, // true if using HTTPS else false
                    'host' => 'example.com', // Change this to your domain  
                    'port' => 443, // Change this whatever port you are serving your website from 
                    'scheme' => env('PUSHER_APP_SCHEME'),
                    'curl_options' => [
                        CURLOPT_SSL_VERIFYHOST => 0,
                        CURLOPT_SSL_VERIFYPEER => 0,
                    ],
                ],
            ],
     //....
   ],
 
 //....
];