mailjet-8.x-2.7/modules/mailjet_event/mailjet_event.routing.yml

event.content:
  path: '/mailjetevent'
  defaults:
    _controller: 'Drupal\mailjet_event\Controller\EventCallbackController::callback'
    _title: 'Event callback'
  requirements:
    _access: 'TRUE'

event.uninstall:
  path: '/admin/modules/uninstall/entity/event_entity'
  defaults:
    _controller: 'Drupal\mailjet_event\Controller\EventUninstallController::callback'
    _title: 'Uninstall Event entity type.'
  requirements:
    _mailjet_access_check:  'TRUE'