private function getSales($date, $page, $pageSize, $iteration = 0)
{
$transactionList = array();
try {
$transactionList = $this->_apiClient->getSales($date, 'trackingDate', null, null, null, $page, $pageSize, $iteration);
} catch (\Exception $e) {
$iteration++;
if ($iteration < 5) {
$transactionList = self::getSales($date, $page, $pageSize, $iteration);
}
}
return $transactionList;
}