Verify Webhooks Secret

webhooks_verification.php

<?php

define('HOOKS_TOKEN', 'XXXXX'); // get your token at Admin Panel > Config > Notifications / Webhooks.

function verify_webhook($data, $hmac_header)
{
	$calculated_hmac = base64_encode(hash_hmac('sha256', $data, HOOKS_TOKEN, true));
	return ($hmac_header == $calculated_hmac);
}

$hmac_header = $_SERVER['HTTP_JUMPSELLER_HMAC_SHA256'];
$data = file_get_contents('php://input');
$verified = verify_webhook($data, $hmac_header);
print_r(var_export($verified, true));

?>