How to destroy custom session value after X minutes in Magento 2?

Question

As I know there isn't a core/session in Magento 2 [source], I've created a custom session using customer/session as given below:

public function __construct(
    \Magento\Customer\Model\Session $customerSession,
    ....
) {
    $this->customerSession = $customerSession;
    ...
}
public function execute() {
    $this->customerSession->setOtp(5); // To set session value
    $this->customerSession->getOtp();  // To get session value
}

$this->customerSession->destroy(); will destroy whole customer session, which I do not want. Is it possible to destroy this particular otp session value automatically after 30 minutes?

Answer 1

You can remove/unset custom session via 'uns' prefix.

$this->customerSession->unsOtp();

Hope this will help you.