embed-8.x-1.x-dev/embed.routing.yml

embed.preview:
  path: '/embed/preview/{filter_format}'
  defaults:
    _controller: '\Drupal\embed\Controller\EmbedController::preview'
  requirements:
    _entity_access: 'filter_format.use'
  options:
    _theme: ajax_base_page

embed.settings:
  path: '/admin/config/content/embed/settings'
  defaults:
    _form: '\Drupal\embed\Form\EmbedSettingsForm'
    _title: 'Settings'
  requirements:
    _permission: 'administer embed buttons'

entity.embed_button.collection:
  path: '/admin/config/content/embed'
  defaults:
    _controller: '\Drupal\Core\Entity\Controller\EntityListController::listing'
    entity_type: 'embed_button'
    _title: 'Embed buttons'
  requirements:
    _permission: 'administer embed buttons'

embed.button_add:
  path: '/admin/config/content/embed/button/add'
  defaults:
    _entity_form: 'embed_button.add'
    _title: 'Add embed button'
  requirements:
    _entity_create_access: 'embed_button'

entity.embed_button.edit_form:
  path: '/admin/config/content/embed/button/manage/{embed_button}'
  defaults:
    _entity_form: 'embed_button.edit'
    _title: 'Edit embed button'
  requirements:
    _entity_access: 'embed_button.update'

entity.embed_button.delete_form:
  path: '/admin/config/content/embed/button/manage/{embed_button}/delete'
  defaults:
    _entity_form: 'embed_button.delete'
    _title: 'Delete embed button'
  requirements:
    _entity_access: 'embed_button.delete'