How to pull data from Facebook Insights about a particular FB page

1) Get admin rights on the page, say it's called MyPromoPage
2) Create an app with your personal account
3) Go to https://developers.facebook.com/apps/ -> your app -> Edit Settings. Set "App Domain" to anything.com and "Site URL" (hidden in the Website sub-menu) to http://anything.com
4) Type into your browser the following URL, substituting [App ID/API Key] with the value from your app profile at https://developers.facebook.com/apps/ -> your app :

https://graph.facebook.com/oauth/authorize?client_id=[AppID/APIKey]&redirect_uri=http%3A%2F%2Fanything.com&scope=read_insights

If you succeed, the page will redirect you into whatever anything.com is, close it.

5) Go back to your app page and copy the entire Access Token into this URL:

https://graph.facebook.com/MyPromoPage/insights?access_token=[AccessToken]

Profit!

полдня угрохала на это, документаторы долбоебические...