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Merge branch '4.3' into 4.4
* 4.3: ISSUE-12195: - Added documentation about how to autowire monolog channels.
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‎logging.rst

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@@ -349,8 +349,8 @@ passed as a service.
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was introduced in Symfony 4.2.
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If you want to use in your own services a pre-configured logger which uses a
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specific channel (``app`` by default), use the ``monolog.logger`` tag with the
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``channel`` property as explained in the
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specific channel (``app`` by default), you can either :ref:`autowire monolog channels <monolog-autowire-channels>`
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or use the ``monolog.logger`` tag with the ``channel`` property as explained in the
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:ref:`Dependency Injection reference <dic_tags-monolog>`.
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Adding extra Data to each Log (e.g. a unique request token)

‎logging/channels_handlers.rst

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.. note::
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Each channel corresponds to a logger service (``monolog.logger.XXX``)
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in the container (use the ``php bin/console debug:container monolog`` command
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to see a full list) and those are injected into different services.
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Each channel corresponds to a different logger service (``monolog.logger.XXX``)
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Use the ``php bin/console debug:container monolog`` command to see a full
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list of services and learn :ref:`how to autowire monolog channels <monolog-autowire-channels>`.
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.. _logging-channel-handler:
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channel ``foo`` creates a service called ``monolog.logger.foo``). In order to
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inject this service into others, you must update the service configuration to
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:ref:`choose the specific service to inject <services-wire-specific-service>`.
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.. _monolog-autowire-channels:
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How to Autowire Logger Channels
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Starting from `MonologBundle`_ 3.5 you can autowire different Monolog channels
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by type-hinting your service arguments with the following syntax:
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``Psr\Log\LoggerInterface $<channel>Logger``. For example, to inject the service
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related to the ``app`` logger channel use this:
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.. code-block:: diff
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- public function __construct(LoggerInterface $logger)
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+ public function __construct(LoggerInterface $appLogger)
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{
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$this->logger = $appLogger;
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}
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.. _`MonologBundle`: https://github.com/symfony/monolog-bundle

‎reference/dic_tags.rst

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.. tip::
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You can also configure custom channels in the configuration and retrieve
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the corresponding logger service from the service container directly (see
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:ref:`monolog-channels-config`).
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You can create :doc:`custom channels </logging/channels_handlers>` and
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even :ref:`autowire logging channels <monolog-autowire-channels>`.
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.. _dic_tags-monolog-processor:
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‎service_container/3.3-di-changes.rst

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Great! In Symfony 3.2 or lower, you would now need to register this as a service
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in ``services.yaml`` and tag it with ``kernel.event_subscriber``. In Symfony 3.3,
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you're already done! The service is :ref:`automatically registered <service-33-changes-automatic-registration>`.
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you're already done!
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The service is :ref:`automatically registered <service-33-changes-automatic-registration>`.
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And thanks to ``autoconfigure``, Symfony automatically tags the service because
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it implements ``EventSubscriberInterface``.
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‎service_container/autowiring.rst

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adds an alias: ``Psr\Log\LoggerInterface`` that points to the ``logger`` service.
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This is why arguments type-hinted with ``Psr\Log\LoggerInterface`` can be autowired.
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.. versionadded:: 4.2
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Since Monolog Bundle 3.5 each channel bind into container by type-hinted alias.
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More info in the part about :ref:`how to autowire monolog channels <monolog-autowire-channels>`.
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.. _autowiring-interface-alias:
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Working with Interfaces

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