How to integrate FACEBOOK MESSENGER like this?

Hi guys!

I tried to integrate the facebook messenger to send private messeges with a fullsize photo and a link to playstore. But I’m not successful.

I see the game “4 Pics 1 Word” do very well this job. https://play.google.com/store/apps/details?id=de.lotum.whatsinthefoto.us

Do you have any demo source code for this. PLEASE DO NOT REFER ME TO FACEBOOK SDK DOCUMENT.

Thanks a lot