Is there any kind of Facebook API for Xojo Web apps exists?
I would like to know that too.
Same need here !
I haven’t had a chance to check it out yet, but OAuth.io purports to provide easy access to services that use OAuth (such as Facebook). They do list Facebook as one of the services they support, FWIW.
OAuth gets you authenticated but I think the various Facebook APIs would still need coding.
Doesn’t look too hard from a web app: https://developers.facebook.com/docs/facebook-login/manually-build-a-login-flow/
I have a whole set of fbook api classes I developed a little over a year ago. Inbox me
Sam Rowlands posted some code to the NUG for picture sharing to facebook a while back. It’s for desktop, but it might be helpful to get started.