public function feed(){

        if (request()->has('page')) {

            $pagesize = 20;

            $query = Posts::join('clase_user', function ($join) {

                $user  = JWTAuth::parseToken()->authenticate();

                $join->on('clase_user.clase_id', '=', 'posts.clase_id')
                    ->where('clase_user.user_id', '=', $user->id);
            })
                ->with('user')
                ->skip(((int)request()->get('page') - 1) * $pagesize)
                ->take($pagesize)->get();

            return $query;
        }else{
            return response()->json(['error' => 'Page not specified'], 500);
        }

    }

{
    "posts": [
        {
            "id": 3,
            "user_id": 1,
            "clase_id": 1,
            "thumbNail": null,
            "text": "Hola Chicos",
            "archivo": null,
            "created_at": "2017-07-20 00:00:00",
            "updated_at": "2017-07-20 00:00:00",
            "user": {
                "id": 1,
                "name": "Juan Carlos",
                "about": "Hola me llamo Juan Carlos",
                "handler": "Juantvz50",
                "pp": null,
                "verify": 1,
                "email": "jc_estevezr@hotmail.com",
                "deleted_at": null,
                "LoginId": null,
                "created_at": "2017-07-20 23:52:28",
                "updated_at": "2017-07-20 23:52:28"
            }
        },
        {
            "id": 1,
            "user_id": 1,
            "clase_id": 2,
            "thumbNail": null,
            "text": "Que pex Prrrro",
            "archivo": null,
            "created_at": "2017-07-20 00:00:00",
            "updated_at": "2017-07-20 00:00:00",
            "user": {
                "id": 1,
                "name": "Juan Carlos",
                "about": "Hola me llamo Juan Carlos",
                "handler": "Juantvz50",
                "pp": null,
                "verify": 1,
                "email": "jc_estevezr@hotmail.com",
                "deleted_at": null,
                "LoginId": null,
                "created_at": "2017-07-20 23:52:28",
                "updated_at": "2017-07-20 23:52:28"
            }
        },
        {
            "id": 3,
            "user_id": 1,
            "clase_id": 1,
            "thumbNail": null,
            "text": "Que Onda Chicos",
            "archivo": null,
            "created_at": "2017-07-20 00:00:00",
            "updated_at": "2017-07-20 00:00:00",
            "user": {
                "id": 1,
                "name": "Juan Carlos",
                "about": "Hola me llamo Juan Carlos",
                "handler": "Juantvz50",
                "pp": null,
                "verify": 1,
                "email": "jc_estevezr@hotmail.com",
                "deleted_at": null,
                "LoginId": null,
                "created_at": "2017-07-20 23:52:28",
                "updated_at": "2017-07-20 23:52:28"
            }
        }
    ]
}