/**
  * get a single user.
  * @param type $id gitlab userid(int)
  * @return type
  */
 private function getUser($id)
 {
     $client = new HttpClient();
     $u = $client->getUser($id);
     $user = ['name' => $u->name, 'username' => $u->username, 'state' => $u->state];
     $users = $this->loadGitLabUser();
     $users = array_add($users, $id, $user);
     \Storage::put($this->userList, json_encode($users, JSON_PRETTY_PRINT));
     return $user;
 }