Is it possible to invite exactly one friend by Facebook API

Without showing the multiuser invite popup. For example I know the uid and that he/she is not using the app. So I wa开发者_运维问答nt to offer a button, to invite this person.

You can set the to parameter of the request dialog to specify that it should go to a single user. You can set frictionlessRequests : true in FB.init so that the first time it will prompt users to allow you to send requests without prompting the user each time.