Get Started

<?php
use Payum\Paypal\Ipn\Api;
use Psr\Http\Client\ClientInterface;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\StreamInterface;
use Psr\Http\Message\StreamInterfacel

/** @var ClientInterface $client */ 
/** @var RequestInterface $requestInterface */
/** @var StreamInterface $streamInterface */

$api = new Api(['sandbox' => true], $client, $requestInterface, $streamInterface);

if (Api::NOTIFY_VERIFIED === $api->notifyValidate($_POST)) {
    echo 'It is valid paypal notification. Let\'s do some additional checks';
}

echo 'Something wrong in notification';

Warning:

Important: After you receive the VERIFIED message, there are several important checks you must perform before you can assume that the message is legitimate and not already processed.

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