notification.php

<?php
echo 'oi';
  require __DIR__ . '/vendor/autoload.php';

  $options = array(
    'cluster' => 'us2',
    'useTLS' => true
  );
  $pusher = new Pusher\Pusher(
    '18d514638e535062bd73',
    '625eb4b95d5aa0d53c0b',
    '610995',
    $options
  );

  $data['message'] = 'BTCPAY say: Hey Raspberry, a payment was received. Please, deliver Coca to the customer!';
  $pusher->trigger('my-channel', 'my-event', $data);
?>