I am currently developing a mobile application that allows a user to log in via facebook. This allows the application to show which facebook user is already using the application.
The next thing I want to do is let the user send an invitation about the application to friends of other friends who are not yet using the application. I saw that many other applications do this by sending a message to a friend’s wall. I think this approach is too intrusive. I like the aproach path by sending a notification, as seen in the following screenshot.

What API call should I use to achieve this? I tried with apprequests . but so far no luck.
Thank you for your help.
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