Guys thanks you very much, appreciate your help. I will do it according to your recommendations. I really see that Elixir community is really friendly! Hope it’s also possible to find a job there with general background from Golang, Python and other languages.

I would recommend you to read on how Plugs work, once you understand that, you can simply read on how to use Guardian, either as a plug, or custom functionality inside your own custom plug.

None of the things you’ve described require Guardian.

I recommend starting with phx.gen.auth and writing straightforward code in your controllers / LiveViews to check “is there a user?” etc. When/if that starts to feel too complicated, then start looking for additional libraries; you’ll know what you need a lot better at that point.

I was in your shoes, a while back, until I found this comprehensive tutorial on approaching Authorization:

https://www.leanpanda.com/blog/authentication-and-authorisation-in-phoenix-liveview/

There’s no shortcut, no library can save you.

Just learn from the above tutorial, and then take it further as per your requirements.

I put some of my thoughts on this, in another thread: