public function store()
 {
     $input = Friend::all();
     Friend::create($input);
     return $input;
 }
 private function pushFriends($url, $client)
 {
     foreach (Friend::all() as $friend) {
         $json = ['id' => $friend->id, 'user_id' => $friend->user_id, 'friend_id' => $friend->friend_id];
         $client->post($url, ['json' => $json]);
     }
 }