How to get admin user name get null? [duplicate]

Question

How can I make this function run - also when getUsername() is null

$authSession = $objectManager->get('Magento\Backend\Model\Auth\Session');
$UUsername = $authSession->getUser()->getUsername();

Answer 1

We should not be using Object Manager as this can cause issues. For getting admin username we are going to want to add these classes to our constructor.

protected $authSession;
public function __construct(
    ....
    \Magento\Backend\Model\Auth\Session $authSession, 
    ....
) {
    ....
    $this->authSession = $authSession;
    ....
}

then we can get our user like this:

$this->authSession->getUser()

this will give you the current logged in admin. You can later get the details like $user->getUsername() or $user->getEmail().