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<?php
namespace GoCardlessPayment\MandateCheckout;
use GoCardlessPayment\Makeable;
class Metadata implements \JsonSerializable
{
use Makeable;
public array $data = [];
/**
* @throws \Exception
*/
public function add(string $key, string $value): static
if (count($this->data) >= 3) {
throw new \Exception('Max 3 items allowed in metadata.');
}
if (strlen($key) > 50) {
throw new \Exception('Key length max - 50 chars.');
if (strlen($value) > 500) {
throw new \Exception('Value length max - 500 chars.');
$this->data[$key] = $value;
return $this;
public function jsonSerialize(): array
return array_filter($this->data, fn ($i) => ! is_null($i));
dev-think-one /
laravel-gocardless-payment
