:class:`Symfony\\Bundle\\FrameworkBundle\\Test\\KernelTestCase`

or:class:`Symfony\\Bundle\\FrameworkBundle\\Test\\WebTestCase`.

Amazon SQS

..versionadded::5.1

The Amazon SQS transport has been added in Symfony 5.1

Install it by running:

..code-block::terminal

The ``SQS`` transport configuration looks like this:

..code-block::bash

..note::

The transport will automatically create queues that are needed. This

can be disabled setting the "auto_setup" option to ``false``.

A number of options can be configured via the DSN or via the ``options`` key

under the transport in ``messenger.yaml``:

Option Description Default

access_key AWS access key

account Identifier of the AWS account The owner of the credentials

auto_setup Whether the table should be created true

automatically during send / get.

buffer_size Number of messages to prefetch 9

endpoint Absolute URL to the SQS service https://sqs.eu-west-1.amazonaws.com

poll_timeout Wait for new message duration in 0.1

seconds

queue_name Name of the queue messages

region Name of the AWS region eu-west-1

secret_key AWS secret key

visibility_timeout Amount of seconds the message will Queue's configuration

not be visible (`Visibility Timeout`_)

wait_time `Long polling`_ duration in seconds 20

..note::

The ``wait_time`` parameter defines the maximum duration Amazon SQS should

wait until a message is available in a queue before sending a response.

It helps reducing the cost of using Amazon SQS by eliminating the number

of empty responses.

The ``poll_timeout`` parameter defines the duration the receiver should wait

before returning null. It avoids blocking other receivers from being called.

..note::

If the queue name is suffixed by ``.fifo``, AWS will create a `FIFO queue`_.

Use the stamp:class:`Symfony\\Component\\Messenger\\Bridge\\AmazonSqs\\Transport\\AmazonSqsFifoStamp`

to define the ``Message group ID`` and the ``Message deduplication ID``.

FIFO queues don't support setting a delay per message, a value of ``delay: 0``

is required in the retry strategy settings.

Serializing Messages

Possible options to configure with tags are:

* ``bus``

..note::

If a middleware service is abstract, a different instance of the service will

.. _`streams`:https://redis.io/topics/streams-intro

.. _`Supervisor docs`:http://supervisord.org/

.. _`SymfonyCasts' message serializer tutorial`:https://symfonycasts.com/screencast/messenger/transport-serializer

.. _`Long polling`:https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-short-and-long-polling.html

.. _`Visibility Timeout`:https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-visibility-timeout.html

.. _`FIFO queue`:https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/FIFO-queues.html