Email authentication?

Question

Ruby on Rails

The task statement is as follows:
" I want to save the user from having to remember the login and password. The idea is this: the letter contains a link to the form for entering vacancies with a parameter of the form token
=jhkjlwjkl3hwjfkljablfbli
OK, let's go to the application. If the token is incorrect, or it is expired, then we send it to the login form. "
Are there any ready-made gems that allow you to implement such functionality? Devise is already screwed on.

Answer 1

In the end, I found it myself: https://github.com/gonzalo-bulnes/simple_token_aut...
Quite suitable for solving the problem formulated in the question.

Answer 2

https://github.com/doorkeeper-gem/doorkeeper