title: Can we send "Notifications App" through Graph API?
body: <p>I have advanced further in my app, now I have two users who has allowed my app, Alice and Bob, now Alice wants to send notifications to invite Bob to an event in a place.</p>
  
  <p>App Notifications:
  <a href="https://developers.facebook.com/docs/concepts/notifications/#impl" rel="nofollow">https://developers.facebook.com/docs/concepts/notifications/#impl</a></p>
  
  <p>I don't know if I can use the graph api to do this, or I have to do it through HTTP like in the example. (I'd rather use Javascript, maybe FB.api? but how?)</p>
  
  <p>By the way, how I get the access_token for use it? Is it always the same or this expires having to ask for it again?</p>
  
  <p>PS.
  Moreover, maybe this is out of topic -I don't know-, Is it possible to do this with Open Graph and what advantages would give us this.</p>
  
  <p>Thanks in advance.</p>