$method = $_SERVER['REQUEST_METHOD'];
$ip = $_SERVER['REMOTE_ADDR'];
$toHash = $ip . $SALT;
$expectedToken = hash('sha256', $toHash);
$token = $_SERVER['HTTP_TOKEN'];
if ($token === $expectedToken) {
switch ($method) {
case "GET":
if (isset($_GET['id']) && !empty($_GET['id'])) {
//getting record by id
$id = $_GET['id'];
$item = ItemManager::GetById($id);
echo json_encode($item);
} else {
//getting all records
$items = ItemManager::GetAllItems();
echo json_encode($items);
}
break;
case "PUT":
$newRecordData = fopen("php://input", "r");
$data = stream_get_contents($newRecordData);
fclose($newRecordData);
parse_str($data);
$newId = ItemManager::AddNewItem($desc, $price, $quantity);
echo "The item {$desc} has been inserted with the id {$newId}.";
break;
case "POST":
$id = $_POST["id"];
if (isset($id) && $id != 0 && !empty($id)) {
$desc = $_POST["desc"];
