Is it possible to implement Ruby's authentication in a JavaScript application?

Currently, I have an application running on abc.website.com that utilizes devise for user authentication in Ruby on Rails. Now, I need to set up a react app on def.website.com which should only function if the user is logged in on abc.website.com (which also uses devise).

In order to achieve this, we will need to include a link in the navbar of abc.website.com that directs users to def.website.com.

Do you have any recommendations on how to best accomplish this task?

While I am new to Ruby, I am proficient in Javascript.

Thank you in advance for your assistance. Your help is greatly appreciated.

Answer №1

If you're looking for a solution, check out this helpful guide on implementing Token Based Authentication. Another great option is using JWT.

Answer №2

The Rails application is capable of storing a cookie, such as the Rails session cookie, in the client's cookie store. This cookie is sent to the Rails app with each request from the React app, allowing you to authenticate the user by examining the contents of this cookie.

This method requires minimal adjustments (similar to what would be needed for JWT authentication, which is also a valid approach).

One benefit of this approach is that very little data needs to be stored on the client side. Only an ID is necessary for the Rails backend to identify the user and access all required information. However, if you prefer to store all data on the client side, that is also possible.

In terms of using Rails session versus JWT, there is no clear advantage one way or the other. The key is to provide the client with the necessary information, which can then be passed back to the backend as needed.

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