private function handleCustomerOperations($request)
{
//include_once data handling class
include_once __DIR__ . '/../dataController/CustomerController.php';
//create a new customer object which carries out the further operations
$customerController = new CustomerController();
//set data and header
if (isset($request[1])) {
$this->setResponseCodesAndData($customerController->getById($request[1]), 1);
} else {
$this->setResponseCodesAndData($customerController->getAll(), 1);
}
}
