Laravel - Broadcasting - Using An Existing Client Instance
If you already have a pre-configured Pusher Channels client instance that you would like Echo to utilize, you may pass it to Echo via the client
configuration option:
import Echo from 'laravel-echo';
const client = require('pusher-js');
window.Echo = new Echo({
broadcaster: 'pusher',
key: 'your-pusher-channels-key',
client: client
});