that's good
There is no problem with learning Identity server 4 deployment and Embed it into a project. so you can provide security on your own.
but the problem is you have to gain the end-user trust over your Identity system. so that is why it's best to learn Okta or Asure AD Identity system with it. because most of the companies in the world trust them. so end-users and stakeholders will have no problem login with those Identity servers
Also for better security companies moves to SAML protocol because it's safer than others and natively supports single sign-on. witch means imagine you have a cloud base app and locally hosted app and using single sign-on you can provide Auth for both apps using a single login.
if you know.net I mean asp.net base then you will be familiar with httpcontext and it's the base of HTTP communication. so there should be no problem using it in nodejs or any other language. and you may familiar with Routing and other stuff. the implementation may differ from language to language but the core remains the same for all. so " .net කරලා තිබ්බා කියලා අවුලක් වෙන එකක් නෑනේ " is ok unless some high ego pukar interviewed you
තෑන්ක්ස් අයියේ. තේරුනා.
හයියෝ වැඩක් නෑ, මට ඉන්ටර්විව් වල සෙට් වෙන්නෙ මාර ඩයල්.
එක පාරක් එකෙක් බුද්දාගමෙන් ප්රශ්නයක් අහලා, මට කියාගන්න බැරි උනා, ගූ බල්ලා මාව පදිරි කලා
