How to validate Route Parameters in Laravel 5?

Question

As you know Laravel 5 changes the way you call the validator, the old way is calling the validator facade, but now there is the ValidatesRequests

Answer 1

public function listTurns($doctor_id, $limit, $offset){
        $r = [
            'doctor_id' => $doctor_id,
            'limit' => $limit,
            'offset' => $offset,
        ];

        $validator = Validator::make($r, [
            'doctor_id' => 'required|numeric|min:1|exists:doctors,id',
            'limit' => 'required|numeric|min:1',
            'offset' => 'required|numeric|min:0',
        ]);
}