/**
* Method to validate username and get key which is to be used for the next call
* @param $username
*/
public function validateUsername($username){
$verifyUser = new verifyUser();
$verifyUser->username = $username;
$result = $this->serviceStub->verifyUser($verifyUser);
if($result->return->verified){
return $result->return->key;
}
}
