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

campaign.callback:
  path: '/campaigncallback'
  defaults:
    _controller: 'Drupal\mailjet_campaign\Controller\CampaignCallbackController::callback'
    _title: 'Campaign callback'
  requirements:
    _access: 'TRUE'

campaign.content:
  path: '/admin/config/system/mailjet/mailjet-panel/campaign'
  defaults:
    _controller: 'Drupal\mailjet_campaign\Controller\CampaignAdminController::content'
    _title: 'Campaign'
  requirements:
    _mailjet_access_check:  'TRUE'

campaign.uninstall:
  path: '/admin/modules/uninstall/entity/campaign_entity'
  defaults:
    _controller: 'Drupal\mailjet_campaign\Controller\CampaignUninstallController::callback'
    _title: 'Uninstall Campaign entity type.'
  requirements:
    _mailjet_access_check:  'TRUE'