private_message_messenger.routing.yml

# JSON Endpoint.
private_message_messenger.json_get:
  path: '/pmm-get/{action}'
  defaults:
    _controller: '\Drupal\private_message_messenger\Controller\JsonEndpoint::get'
  requirements:
    _permission: 'use private messaging system'
    _user_is_logged_in: 'TRUE'
private_message_messenger.json_post:
  path: '/pmm-post/{action}'
  defaults:
    _controller: '\Drupal\private_message_messenger\Controller\JsonEndpoint::post'
  requirements:
    _permission: 'use private messaging system'
    _user_is_logged_in: 'TRUE'
private_message_messenger.messenger:
  path: '/messenger'
  defaults:
    _controller: '\Drupal\private_message_messenger\Controller\Messenger::content'
    _title: 'Messenger'
  requirements:
    _permission: 'use private messaging system'
    _user_is_logged_in: 'TRUE'