How to approach this?

Hello,

I'm using next.js and mongoose, and what I want to do is the following:

• Send a POST request and get back an object id
• create a QR code of the id
• when the QR code is scanned I get the object
• object is deleted after 2 hours of being created

How do I automatically delete objects after 2 hours of their created time in mongoose/ mongodb? I found the "expireAt" field but just want to make sure that this is what I should be looking for?