A module that I will be checking out in due course is the Drupal Facebook Messenger Bot module. Bot content can be updated from within Drupal in real time. Due to Drupal's strong focus on content and data modelling, and what is possible with Drupal's REST API, I am excited to see what this module can do!
https://www.drupal.org/project/fb_messenger_bot
https://ftp.drupal.org/files/projects/fb_messenger_bot-8.x-1.1.zip