redirect-8.x-1.x-dev/modules/redirect_404/redirect_404.services.yml

services:
  redirect.404_subscriber:
    class: Drupal\redirect_404\EventSubscriber\Redirect404Subscriber
    arguments: ['@path.current', '@path.matcher', '@request_stack', '@language_manager', '@redirect.not_found_storage', '@config.factory']
    tags:
      - { name: event_subscriber }
  redirect.not_found_storage:
    class: Drupal\redirect_404\SqlRedirectNotFoundStorage
    arguments: ['@database', '@config.factory']
    tags:
      - { name: backend_overridable }
  logger.redirect_404:
    public: false
    class: \Drupal\redirect_404\Render\Redirect404LogSuppressor
    decorates: logger.factory
    arguments: ['@logger.redirect_404.inner', '@config.factory']