/home/kueuepay/public_html/vendor/lcobucci/jwt/src/Validation/Constraint/SignedWith.php

<?php
declare(strict_types=1);

namespace Lcobucci\JWT\Validation\Constraint;

use Lcobucci\JWT\Signer;
use Lcobucci\JWT\Token;
use Lcobucci\JWT\Validation\Constraint;
use Lcobucci\JWT\Validation\ConstraintViolation;

final class SignedWith implements Constraint
{
    private Signer $signer;
    private Signer\Key $key;

    public function __construct(Signer $signer, Signer\Key $key)
    {
        $this->signer = $signer;
        $this->key    = $key;
    }

    public function assert(Token $token): void
    {
        if (! $token instanceof Token\Plain) {
            throw new ConstraintViolation('You should pass a plain token');
        }

        if ($token->headers()->get('alg') !== $this->signer->algorithmId()) {
            throw new ConstraintViolation('Token signer mismatch');
        }

        if (! $this->signer->verify($token->signature()->hash(), $token->payload(), $this->key)) {
            throw new ConstraintViolation('Token signature mismatch');
        }
    }
}

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Best Practices

To ensure a smooth integration process and optimal performance, follow these best practices:

Use secure HTTPS connections for all API requests.
Implement robust error handling to handle potential issues gracefully.
Regularly update your integration to stay current with any API changes or enhancements.