Services - 10.3.x - drupal

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 900

Title File name Summary All service tags
theme.negotiator.system.batch core/modules/system/system.services.yml Drupal\system\Theme\BatchNegotiator theme_negotiator
theme.negotiator.system.db_update core/modules/system/system.services.yml Drupal\system\Theme\DbUpdateNegotiator theme_negotiator
theme.negotiator.test_custom_theme core/modules/system/tests/modules/theme_test/theme_test.services.yml Drupal\theme_test\Theme\CustomThemeNegotiator theme_negotiator
theme.negotiator.test_theme core/modules/system/tests/modules/menu_test/menu_test.services.yml Drupal\menu_test\Theme\TestThemeNegotiator theme_negotiator
theme.registry core/core.services.yml Drupal\Core\Theme\Registry needs_destruction
theme_handler core/core.services.yml Drupal\Core\Extension\ThemeHandler
theme_installer core/core.services.yml Drupal\Core\Extension\ThemeInstaller
theme_test.subscriber core/modules/system/tests/modules/theme_test/theme_test.services.yml Drupal\theme_test\EventSubscriber\ThemeTestSubscriber
title_resolver core/core.services.yml Drupal\Core\Controller\TitleResolver
token core/core.services.yml Drupal\Core\Utility\Token
toolbar.menu_tree core/modules/toolbar/toolbar.services.yml Drupal\toolbar\Menu\ToolbarMenuLinkTree
toolbar.page_cache_request_policy.allow_toolbar_path core/modules/toolbar/toolbar.services.yml Drupal\toolbar\PageCache\AllowToolbarPath page_cache_request_policy
transliteration core/core.services.yml Drupal\Core\Transliteration\PhpTransliteration
twig core/core.services.yml Drupal\Core\Template\TwigEnvironment service_collector
twig.extension core/core.services.yml Drupal\Core\Template\TwigExtension twig.extension
twig.extension.debug core/core.services.yml Twig\Extension\DebugExtension twig.extension
twig.extension.varDumper core/core.services.yml Drupal\Core\Template\DebugExtension twig.extension
twig.loader core/core.services.yml Twig\Loader\ChainLoader service_collector
twig.loader.filesystem core/core.services.yml Drupal\Core\Template\Loader\FilesystemLoader twig.loader
twig.loader.string core/core.services.yml Drupal\Core\Template\Loader\StringLoader twig.loader
twig.loader.theme_registry core/core.services.yml Drupal\Core\Template\Loader\ThemeRegistryLoader twig.loader
Twig\Loader\LoaderInterface core/core.services.yml
twig_extension_test.twig.test_extension core/modules/system/tests/modules/twig_extension_test/twig_extension_test.services.yml Drupal\twig_extension_test\TwigExtension\TestExtension twig.extension
twig_loader_test.twig.test_loader core/modules/system/tests/modules/twig_loader_test/twig_loader_test.services.yml Drupal\twig_loader_test\Loader\TestLoader twig.loader
typed_data_manager core/core.services.yml Drupal\Core\TypedData\TypedDataManager plugin_manager_cache_clear
unrouted_url_assembler core/core.services.yml Drupal\Core\Utility\UnroutedUrlAssembler
update.fetcher core/modules/update/update.services.yml Drupal\update\UpdateFetcher
update.key_value.post_update core/core.services.yml Drupal\Core\KeyValueStore\KeyValueStoreInterface
update.manager core/modules/update/update.services.yml Drupal\update\UpdateManager
update.post_update_registry core/core.services.yml Drupal\Core\Update\UpdateRegistry
update.post_update_registry_factory core/core.services.yml Drupal\Core\Update\UpdateRegistryFactory
update.processor core/modules/update/update.services.yml Drupal\update\UpdateProcessor
update.root core/modules/update/update.services.yml Drupal\update\UpdateRoot
update.route_subscriber core/modules/update/update.services.yml Drupal\update\Routing\UpdateRouteSubscriber
update.update_hook_registry core/core.services.yml Drupal\Core\Update\UpdateHookRegistry
update.update_hook_registry_factory core/core.services.yml Drupal\Core\Update\UpdateHookRegistryFactory
update_script_test.broken_path_processor core/modules/system/tests/modules/update_script_test/update_script_test.services.yml Drupal\update_script_test\PathProcessor\BrokenInboundPathProcessor path_processor_inbound
url_alter_test.path_processor core/modules/system/tests/modules/url_alter_test/url_alter_test.services.yml Drupal\url_alter_test\PathProcessorTest path_processor_inbound, path_processor_outbound
url_generator core/core.services.yml Drupal\Core\Render\MetadataBubblingUrlGenerator
url_generator.non_bubbling core/core.services.yml Drupal\Core\Routing\UrlGenerator
user.auth core/modules/user/user.services.yml Drupal\user\UserAuthentication
user.authentication.cookie core/modules/user/user.services.yml Drupal\user\Authentication\Provider\Cookie authentication_provider
user.current_user_context core/modules/user/user.services.yml Drupal\user\ContextProvider\CurrentUserContext context_provider
user.data core/modules/user/user.services.yml Drupal\user\UserData backend_overridable
user.flood_control core/modules/user/user.services.yml Drupal\user\UserFloodControl
user.flood_subscriber core/modules/user/user.services.yml Drupal\user\EventSubscriber\UserFloodSubscriber
user.module_permissions_link_helper core/modules/user/user.services.yml Drupal\user\ModulePermissionsLinkHelper
user.name_validator core/modules/user/user.services.yml Drupal\user\UserNameValidator
user.permissions core/modules/user/user.services.yml Drupal\user\PermissionHandler
user.toolbar_link_builder core/modules/user/user.services.yml Drupal\user\ToolbarLinkBuilder

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