Facebook Graph Api v2.0+ - /me/groups returns empty

Question

I am trying to get my groups with graph api v2.0, but data returns empty:

{
  \"data\":  []
}

Before this I used v1.0 and this was workable

Answer 1

https://developers.facebook.com/docs/facebook-login/permissions/v2.3

user_groups

Enables your app to read the Groups a person is a member of through the groups edge on the User object.

This permission does not allow you to create groups on behalf of a person. It is not possible to create groups via the Graph API.

Review

If your app requests this permission Facebook will have to review how your app uses it.

Limited Use

This permission is granted to apps building a Facebook-branded client on platforms where Facebook is not already available. For example, Android and iOS apps will not be approved for this permission. In addition, Web, Desktop, in-car and TV apps will not be granted this permission.

In short: Facebook will no longer approve user_groups permission for most developers starting from 30 Apr 2015.