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Introduction to services

A "service" (such as accessing the database, sending email, or translating user interface text) can be defined by a module or Drupal core. Defining a service means giving it a name and designating a default class to provide the service; ideally, there should also be an interface that defines the methods that may be called. Services are collected into the Dependency Injection Container, and can be overridden to use different classes or different instantiation by modules. See the Services and Dependency Injection Container topic for details.

Some services have tags, which are defined in the service definition. Tags are used to define a group of related services, or to specify some aspect of how the service behaves. See the Service Tags topic for more information.

See also

Services and Dependency Injection Container

Service Tags

File

core/core.api.php, line 912

Title File name Summary All service tags
PhpTuf\ComposerStager\API\Precondition\Service\NoLinksExistOnWindowsInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Precondition\Service\NoLinksExistOnWindows
PhpTuf\ComposerStager\API\Precondition\Service\NoNestingOnWindowsInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Precondition\Service\NoNestingOnWindows
PhpTuf\ComposerStager\API\Precondition\Service\NoSymlinksPointOutsideTheCodebaseInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Precondition\Service\NoSymlinksPointOutsideTheCodebase
PhpTuf\ComposerStager\API\Precondition\Service\NoUnsupportedLinksExistInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Precondition\Service\NoUnsupportedLinksExist
PhpTuf\ComposerStager\API\Precondition\Service\RsyncIsAvailableInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Precondition\Service\RsyncIsAvailable
PhpTuf\ComposerStager\API\Precondition\Service\StagerPreconditionsInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Precondition\Service\StagerPreconditions
PhpTuf\ComposerStager\API\Precondition\Service\StagingDirDoesNotExistInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Precondition\Service\StagingDirDoesNotExist
PhpTuf\ComposerStager\API\Precondition\Service\StagingDirExistsInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Precondition\Service\StagingDirExists
PhpTuf\ComposerStager\API\Precondition\Service\StagingDirIsReadyInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Precondition\Service\StagingDirIsReady
PhpTuf\ComposerStager\API\Precondition\Service\StagingDirIsWritableInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Precondition\Service\StagingDirIsWritable
PhpTuf\ComposerStager\API\Process\Factory\ProcessFactoryInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Process\Factory\ProcessFactory
PhpTuf\ComposerStager\API\Process\Service\ComposerProcessRunnerInterface core/modules/package_manager/package_manager.services.yml Drupal\package_manager\ComposerRunner
PhpTuf\ComposerStager\API\Process\Service\OutputCallbackInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Process\Service\OutputCallback
PhpTuf\ComposerStager\API\Process\Service\ProcessInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Process\Service\Process
PhpTuf\ComposerStager\API\Process\Service\RsyncProcessRunnerInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Process\Service\RsyncProcessRunner
PhpTuf\ComposerStager\API\Translation\Factory\TranslatableFactoryInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Translation\Factory\TranslatableFactory
PhpTuf\ComposerStager\API\Translation\Service\DomainOptionsInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Translation\Service\DomainOptions
PhpTuf\ComposerStager\API\Translation\Service\LocaleOptionsInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Translation\Service\LocaleOptions
PhpTuf\ComposerStager\API\Translation\Service\TranslatorInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Translation\Service\Translator
PhpTuf\ComposerStager\Internal\Path\Service\PathHelperInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Path\Service\PathHelper
PhpTuf\ComposerStager\Internal\Process\Factory\SymfonyProcessFactoryInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Process\Factory\SymfonyProcessFactory
PhpTuf\ComposerStager\Internal\Process\Service\OutputCallbackAdapterInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Process\Service\OutputCallbackAdapter
PhpTuf\ComposerStager\Internal\Translation\Service\SymfonyTranslatorProxyInterface core/modules/package_manager/package_manager.services.yml PhpTuf\ComposerStager\Internal\Translation\Service\SymfonyTranslatorProxy
placeholder_strategy core/core.services.yml Drupal\Core\Render\Placeholder\ChainedPlaceholderStrategy service_collector
placeholder_strategy.big_pipe core/modules/big_pipe/big_pipe.services.yml Drupal\big_pipe\Render\Placeholder\BigPipeStrategy placeholder_strategy
placeholder_strategy.cached core/core.services.yml Drupal\Core\Render\Placeholder\CachedStrategy placeholder_strategy
placeholder_strategy.single_flush core/core.services.yml Drupal\Core\Render\Placeholder\SingleFlushStrategy placeholder_strategy
plugin.cache_clearer core/core.services.yml Drupal\Core\Plugin\CachedDiscoveryClearer
plugin.manager.action core/core.services.yml Drupal\Core\Action\ActionManager
plugin.manager.block core/core.services.yml Drupal\Core\Block\BlockManager
plugin.manager.ckeditor5.plugin core/modules/ckeditor5/ckeditor5.services.yml Drupal\ckeditor5\Plugin\CKEditor5PluginManager
plugin.manager.condition core/core.services.yml Drupal\Core\Condition\ConditionManager
plugin.manager.config_action core/core.services.yml Drupal\Core\Config\Action\ConfigActionManager
plugin.manager.config_translation.mapper core/modules/config_translation/config_translation.services.yml Drupal\config_translation\ConfigMapperManager
plugin.manager.core.layout core/modules/layout_discovery/layout_discovery.services.yml Drupal\Core\Layout\LayoutPluginManager
plugin.manager.display_variant core/core.services.yml Drupal\Core\Display\VariantManager
plugin.manager.editor core/modules/editor/editor.services.yml Drupal\editor\Plugin\EditorManager
plugin.manager.element_info core/core.services.yml Drupal\Core\Render\ElementInfoManager
plugin.manager.entity_reference_selection core/core.services.yml Drupal\Core\Entity\EntityReferenceSelection\SelectionPluginManager
plugin.manager.field.field_type core/core.services.yml Drupal\Core\Field\FieldTypePluginManager
plugin.manager.field.field_type_category core/core.services.yml \Drupal\Core\Field\FieldTypeCategoryManager
plugin.manager.field.formatter core/core.services.yml Drupal\Core\Field\FormatterPluginManager
plugin.manager.field.widget core/core.services.yml Drupal\Core\Field\WidgetPluginManager
plugin.manager.filter core/modules/filter/filter.services.yml Drupal\filter\FilterPluginManager
plugin.manager.help_section core/modules/help/help.services.yml Drupal\help\HelpSectionManager plugin_manager_cache_clear
plugin.manager.help_topic core/modules/help/help.services.yml Drupal\help\HelpTopicPluginManager
plugin.manager.icon_extractor core/core.services.yml Drupal\Core\Theme\Icon\IconExtractorPluginManager
plugin.manager.icon_pack core/core.services.yml Drupal\Core\Theme\Icon\Plugin\IconPackManager
plugin.manager.image.effect core/modules/image/image.services.yml Drupal\image\ImageEffectManager
plugin.manager.language_negotiation_method core/modules/language/language.services.yml Drupal\language\LanguageNegotiationMethodManager

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