examples-3.x-dev/modules/config_entity_example/config_entity_example.routing.yml

# The routing.yml file defines the paths for our module.
# Here we define the paths for our entity type's admin UI.

# This is the router item for listing all entities.
entity.robot.list:
  path: '/examples/config-entity-example'
  defaults:

    # '_entity_list' tells Drupal to use an entity list controller. We give the
    # entity ID here.
    # Drupal then looks in the entity's annotation and looks for the "list"
    # entry under "controllers" for the class to load.
    # @see \Drupal\Core\Entity\Enhancer\EntityRouteEnhancer
    _entity_list: robot
    _title: 'Config Entity Example'
  requirements:
    _permission: 'administer robots'

# This is the router item for adding our entity.
entity.robot.add_form:
  path: '/examples/config-entity-example/add'
  defaults:
    _title: 'Add robot'

    # Like _entity_list above, _entity_form gives the entity type ID, only this
    # time also lists the form separated by a period. Drupal looks in the
    # annotation for the entity and locates the "add" entry under "form" for
    # the form class to load.
    # @see \Drupal\Core\Entity\Enhancer\EntityRouteEnhancer
    _entity_form: robot.add
  requirements:
    _entity_create_access: robot

# This is the router item for editing our entity.
entity.robot.edit_form:

  # Parameters may be passed to the form via the URL path. We name the
  # parameter in the path by enclosing it in curly braces. For entity forms,
  # we include the entity ID in the path by including a parameter with the
  # same name as the entity type ID.
  path: '/examples/config-entity-example/manage/{robot}'
  defaults:
    _title: 'Edit robot'

    # List our add entry above. This _entity_form entry instructs Drupal to
    # read our entity type's annotation and look for the "edit" entry under
    # "form".
    _entity_form: robot.edit
  requirements:

    # This uses our entity access controller.
    # @see \Drupal\Core\Entity\EntityAccessCheck
    _entity_access: robot.update

# This is the router item for deleting an instance of our entity.
entity.robot.delete_form:
  path: '/examples/config-entity-example/manage/{robot}/delete'
  defaults:
    _title: 'Delete robot'
    _entity_form: robot.delete
  requirements:
    _entity_access: robot.delete