public function byScreenName(Request $request, $screenName)
{
$articles = Twitter::screenName($screenName)->count($request->input('count'))->sinceId($request->input('since_id'))->maxId($request->input('max_id'))->get();
$result = ['screen_name' => $screenName, 'count' => $request->input('count') ? $request->input('count') : 15, 'data' => $articles];
return response()->json($result)->setCallback($request->input('callback'));
}
