Help me, please!

Question

Hi!

I would like to ask for help in developing the authorization functionality on the website. My goal is to create a mechanism that allows users to save their authentication credentials when navigating between sections of the site. For example, I want the site to remember my credentials when I navigate to another page or section, similar to how it works on the Codeforces platform.

On Codeforces, for example, when I read a task and open a new tab, the site still remembers my login. I would like to implement a similar behavior on my site.

I would be glad to have your help)

Answer 1

You'll need to know server-side programming languages like PHP or Node.js and have experience with databases like MySQL or Firebase's Realtime Database.
Or you can use a Content Management System (CMS) like WordPress, Joomla, or Drupal. These platforms come with user management and security features built-in,
I know this does not explain exactly “how” but it should be enough to get you started with your research.

Answer 2

Basically when you login to a website. It creates a new session which is saved into the database and the session id in your browser cookies. On every page request, the backend sees that you have a session id cookie set and uses it to query the session data from the database. If its valid, you will remain logged in.