https://www.npmjs.com/package/facebook-chat-api https://github.com/mrkno/Kassy https://github.com/mrkno/Kassy/blob/master/doc/integrations/Facebook.md
This worked, caveat update your node and npm and better yet (for me solved) just use Docker.
Using our existing search is difficult, it contains restrictions on what and how I search that presents difficulty in getting "open" results that I can filter on in my current client at present the facebook chat client.