How to correctly implement user authorization on the site?

Question

JavaScript

All the best!
I decided to study user authorization. Tell me what is relevant now that you can read (maybe there is something already ready) and what you need to pay attention to? Given that I know how to work with technologies such as angular, node, and I plan to study mongo db now.

Answer 1

better to use JWT for Authorization
Link

Answer 2

Read about OAuth, people today do not want to fill out the registration form because it is much more convenient and safer to log in through Google mail or social networks

Answer 3

Here is an example:
jasonwatmore.com/post/2015/03/10/angularjs-user-re...