I am trying to implement basic Facebook chat features in my application (I am looking for a generic solution, nothing platform specific). Is there any possibility to read user's (my) conversations with other users and post to them?
I searched through Facebook API and SO but found only deprecated me/inbox graph API method, deprecated XMPP Chat API (chat.facebook.com) and Messenger platform API, which seems to support only page-to-user or app-to-user but not the user-to-user conversations.
There is no public API with the ability to send or read a user-to-user facebook conversation.