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Commitc22fade

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alexander-schranzwouterj
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Add documentation for the Redis transport
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‎messenger.rst‎

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@@ -135,8 +135,12 @@ Transports
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By default, messages are processed as soon as they are dispatched. If you prefer
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to process messages asynchronously, you must configure a transport. These
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transports communicate with your application via queuing systems or third parties.
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The built-in AMQP transport allows you to communicate with most of the AMQP
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brokers such as RabbitMQ.
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There are the following built-in transports:
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- AMQP
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- Doctrine
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- Redis
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..note::
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@@ -155,7 +159,7 @@ the messenger component, the following configuration should have been created:
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framework:
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messenger:
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transports:
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amqp:"%env(MESSENGER_TRANSPORT_DSN)%"
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your_transport:"%env(MESSENGER_TRANSPORT_DSN)%"
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..code-block::xml
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@@ -171,7 +175,7 @@ the messenger component, the following configuration should have been created:
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<framework:config>
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<framework:messenger>
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<framework:transportname="amqp"dsn="%env(MESSENGER_TRANSPORT_DSN)%"/>
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<framework:transportname="your_transport"dsn="%env(MESSENGER_TRANSPORT_DSN)%"/>
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</framework:messenger>
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</framework:config>
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</container>
@@ -182,33 +186,63 @@ the messenger component, the following configuration should have been created:
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$container->loadFromExtension('framework', [
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'messenger' => [
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'transports' => [
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'amqp' => '%env(MESSENGER_TRANSPORT_DSN)%',
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'your_transport' => '%env(MESSENGER_TRANSPORT_DSN)%',
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],
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],
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]);
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This will also configure the following services for you:
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#. A ``messenger.sender.your_transport`` sender to be used when routing messages;
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#. A ``messenger.receiver.your_transport`` receiver to be used when consuming messages.
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Now define the ``MESSENGER_TRANSPORT_DSN`` in the ``.env`` file.
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See examples beneath how to configure the DSN for different transports.
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Amqp
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~~~~
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..code-block::bash
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# .env
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###> symfony/messenger ###
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MESSENGER_TRANSPORT_DSN=amqp://guest:guest@localhost:5672/%2f/messages
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###< symfony/messenger ###
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This is enough to allow you to route your message to the ``amqp`` transport.
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This will also configure the following services for you:
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#. A ``messenger.sender.amqp`` sender to be used when routing messages;
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#. A ``messenger.receiver.amqp`` receiver to be used when consuming messages.
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..note::
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In order to use Symfony's built-in AMQP transport, you will need the AMQP
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PHP extension and the SerializerComponent. Ensure that they are installed with:
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PHP extension and the Serializercomponent. Ensure that they are installed with:
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..code-block::terminal
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$ composer require symfony/amqp-pack
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Redis
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~~~~~
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The Redis transport will use `streams`_ to queue messages.
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..code-block::bash
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# .env
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MESSENGER_TRANSPORT_DSN=redis://localhost:6379/messages
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This is enough to allow you to route your message to the Redis transport.
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If you have multiple systems to receive the same messages you could use different groups
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to achieve this:
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..code-block::bash
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# .env
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MESSENGER_TRANSPORT_DSN=redis://localhost:6379/messages/group1/consumer1
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..note::
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In order to use Symfony's built-in Redis transport, you will need the Redis
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PHP extension (^4.2), a running Redis server (^5.0) and the Serializer component.
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Routing
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-------
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@@ -225,7 +259,7 @@ configuration:
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framework:
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messenger:
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routing:
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'My\Message\Message':amqp# The name of the defined transport
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'My\Message\Message':your_transport# The name of the defined transport
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..code-block::xml
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@@ -242,7 +276,7 @@ configuration:
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<framework:config>
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<framework:messenger>
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<framework:routingmessage-class="My\Message\Message">
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<framework:senderservice="amqp"/>
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<framework:senderservice="your_transport"/>
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</framework:routing>
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</framework:messenger>
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</framework:config>
@@ -254,7 +288,7 @@ configuration:
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$container->loadFromExtension('framework', [
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'messenger' => [
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'routing' => [
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'My\Message\Message' => 'amqp',
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'My\Message\Message' => 'your_transport',
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],
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],
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]);
@@ -274,7 +308,7 @@ instead of a class name:
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messenger:
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routing:
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'My\Message\MessageAboutDoingOperationalWork':another_transport
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'*':amqp
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'*':your_transport
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..code-block::xml
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@@ -294,7 +328,7 @@ instead of a class name:
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<framework:senderservice="another_transport"/>
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</framework:routing>
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<framework:routingmessage-class="*">
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<framework:senderservice="amqp"/>
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<framework:senderservice="your_transport"/>
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</framework:routing>
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</framework:messenger>
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</framework:config>
@@ -307,7 +341,7 @@ instead of a class name:
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'messenger' => [
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'routing' => [
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'My\Message\Message' => 'another_transport',
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'*' => 'amqp',
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'*' => 'your_transport',
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],
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],
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]);
@@ -322,7 +356,7 @@ A class of messages can also be routed to multiple senders by specifying a list:
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framework:
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messenger:
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routing:
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'My\Message\ToBeSentToTwoSenders':[amqp, audit]
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'My\Message\ToBeSentToTwoSenders':[your_transport, audit]
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..code-block::xml
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@@ -339,7 +373,7 @@ A class of messages can also be routed to multiple senders by specifying a list:
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<framework:config>
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<framework:messenger>
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<framework:routingmessage-class="My\Message\ToBeSentToTwoSenders">
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<framework:senderservice="amqp"/>
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<framework:senderservice="your_transport"/>
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<framework:senderservice="audit"/>
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</framework:routing>
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</framework:messenger>
@@ -352,7 +386,7 @@ A class of messages can also be routed to multiple senders by specifying a list:
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$container->loadFromExtension('framework', [
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'messenger' => [
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'routing' => [
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'My\Message\ToBeSentToTwoSenders' => ['amqp', 'audit'],
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'My\Message\ToBeSentToTwoSenders' => ['your_transport', 'audit'],
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],
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],
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]);
@@ -369,7 +403,7 @@ while still having them passed to their respective handler:
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messenger:
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routing:
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'My\Message\ThatIsGoingToBeSentAndHandledLocally':
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senders:[amqp]
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senders:[your_transport]
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send_and_handle:true
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..code-block::xml
@@ -387,7 +421,7 @@ while still having them passed to their respective handler:
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<framework:config>
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<framework:messenger>
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<framework:routingmessage-class="My\Message\ThatIsGoingToBeSentAndHandledLocally"send-and-handle="true">
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<framework:senderservice="amqp"/>
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<framework:senderservice="your_transport"/>
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</framework:routing>
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</framework:messenger>
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</framework:config>
@@ -400,7 +434,7 @@ while still having them passed to their respective handler:
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'messenger' => [
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'routing' => [
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'My\Message\ThatIsGoingToBeSentAndHandledLocally' => [
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'senders' => ['amqp'],
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'senders' => ['your_transport'],
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'send_and_handle' => true,
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],
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],
@@ -415,7 +449,7 @@ most of the cases. To do so, use the ``messenger:consume`` command like this:
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..code-block::terminal
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$ php bin/console messenger:consumeamqp
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$ php bin/console messenger:consumeyour_transport
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The first argument is the receiver's service name. It might have been created by
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your ``transports`` configuration or it can be your own receiver.
@@ -835,3 +869,4 @@ Learn more
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/messenger/*
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.. _`enqueue's transport`:https://github.com/php-enqueue/messenger-adapter
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.. _`streams`:https://redis.io/topics/streams-intro

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