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<?php
declare(strict_types=1);
namespace Yiisoft\Yii\RateLimiter\Policy;
use Psr\Http\Message\ServerRequestInterface;
final class LimitingFunction implements LimitingPolicy
{
/**
* @psalm-var callable(ServerRequestInterface): string
*/
private $receiver;
* @psalm-param callable(ServerRequestInterface): string $receiver
public function __construct(callable $receiver)
$this->receiver = $receiver;
}
public function fingerprint(ServerRequestInterface $request): string
$id = ($this->receiver)($request);
/** @psalm-suppress DocblockTypeContradiction */
if (!is_string($id) || '' === $id) {
throw new \InvalidArgumentException('The id must be a non-empty-string.');
return $id;
yiisoft /
rate-limiter
