How do I make a link which is kills itself after a certain time and I can track how many users are viewing it concurently?
Okay so I need to code a project where I have a database of pdfs. Whenever a user requests, I want to give the user a link which they can use to access it. I need the link to degrade after 6 hrs of being generated and also allow only 2 users/screen at the same time.