What are some alternatives?
When comparing React and Ruby on Rails, you can also consider the following products
Okta - Enterprise-grade identity management for all your apps, users & devices
Django - The Web framework for perfectionists with deadlines
Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.
Laravel - A PHP Framework For Web Artisans
OneLogin - On-demand SSO, directory integration, user provisioning and more