photos-6.0.x-dev/photos_access/photos_access.routing.yml

photos_access.page:
  path: '/photos_privacy/pass/{node}'
  defaults:
    _title: 'Please enter password'
    _controller: '\Drupal\photos_access\Controller\DefaultController::photosAccessPasswordPage'
  requirements:
    _permission: 'access content'
    node: \d+
  options:
    parameters:
      node:
        type: entity:node