acquia_commercemanager-8.x-1.122/modules/acm_checkout/acm_checkout.routing.yml

acm_checkout.configuration:
  path: '/admin/commerce/config/checkout'
  defaults:
    _form: '\Drupal\acm_checkout\Form\CheckoutSettingsForm'
    _title: 'Checkout Settings'
  requirements:
    _permission: 'access commerce administration pages'

acm_checkout.form:
  path: '/cart/checkout/{step}'
  defaults:
    _controller: '\Drupal\acm_checkout\Controller\CheckoutController::formPage'
    _title: 'Checkout'
    step: null
  requirements:
    _custom_access: '\Drupal\acm_checkout\Controller\CheckoutController::checkAccess'
  options:
    no_cache: 'TRUE'

acm_checkout.ajax_form:
  path: '/ajax/cart/checkout/{step}'
  defaults:
    _controller: '\Drupal\acm_checkout\Controller\CheckoutController::ajaxFormPage'
    _title: 'Checkout'
    step: null
  requirements:
    _custom_access: '\Drupal\acm_checkout\Controller\CheckoutController::checkAccess'
  options:
    no_cache: 'TRUE'