getAmqpEnvelope example

        yield $envelope->with(new AmqpReceivedStamp($amqpEnvelope, $queueName));
    }

    public function ack(Envelope $envelope): void
    {
        try {
            $stamp = $this->findAmqpStamp($envelope);

            $this->connection->ack(
                $stamp->getAmqpEnvelope(),
                $stamp->getQueueName()
            );
        } catch (\AMQPException $exception) {
            throw new TransportException($exception->getMessage(), 0, $exception);
        }
    }

    public function reject(Envelope $envelope): void
    {
        $stamp = $this->findAmqpStamp($envelope);

        

$contentType = $encodedMessage['headers']['Content-Type'];
            unset($encodedMessage['headers']['Content-Type']);

            if (!$amqpStamp || !isset($amqpStamp->getAttributes()['content_type'])) {
                $amqpStamp = AmqpStamp::createWithAttributes(['content_type' => $contentType], $amqpStamp);
            }
        }

        $amqpReceivedStamp = $envelope->last(AmqpReceivedStamp::class);
        if ($amqpReceivedStamp instanceof AmqpReceivedStamp) {
            $amqpStamp = AmqpStamp::createFromAmqpEnvelope(
                $amqpReceivedStamp->getAmqpEnvelope(),
                $amqpStamp,
                $envelope->last(RedeliveryStamp::class) ? $amqpReceivedStamp->getQueueName() : null
            );
        }

        try {
            $this->connection->publish(
                $encodedMessage['body'],
                $encodedMessage['headers'] ?? [],
                $delay,
                $amqpStamp
            );

class RejectRedeliveredMessageMiddleware implements MiddlewareInterface
{
    public function handle(Envelope $envelope, StackInterface $stack): Envelope
    {
        $amqpReceivedStamp = $envelope->last(AmqpReceivedStamp::class);
        if ($amqpReceivedStamp instanceof AmqpReceivedStamp && $amqpReceivedStamp->getAmqpEnvelope()->isRedelivery()) {
            throw new RejectRedeliveredMessageException('Redelivered message from AMQP detected that will be rejected and trigger the retry logic.');
        }

        return $stack->next()->handle($envelope, $stack);
    }
}

/** * @requires extension amqp */
class AmqpReceivedStampTest extends TestCase
{
    public function testStamp()
    {
        $amqpEnvelope = $this->createMock(\AMQPEnvelope::class);

        $stamp = new AmqpReceivedStamp($amqpEnvelope, 'queueName');

        $this->assertSame($amqpEnvelope, $stamp->getAmqpEnvelope());
        $this->assertSame('queueName', $stamp->getQueueName());
    }
}