Clearance VS Grape

https://github.com/thoughtbot/clearance It is simple and good. You can also customize it easily.

Clearance has been better for most of my projects. Its got a cleaner implementation that Devise, and comes with a generator that will optionally dump all of the basic routes and views into the standard locations which you can then edit at will.

I tend to suggest Clearance for Rails apps that need a more focused toolset. It may not do everything that Devise does, but it definitely works well with Rails 7. https://rubygems.org/gems/clearance/versions/2.5.0

I've found a much simpler/cleaner authentication gem is Clearance. Devise does just about everything, but Clearance is more opinionated so out of the box it does more of what you normally want.

...because some folks prefer clearance to devise! :-D

Clearance is a Rails authentication with email & password. It is intended to be small, simple, and well-tested. It has opinionated defaults but is intended to be easy to override. 3,321 stars by now

Grape’s support extends to standard conventions, multiple format support, content negotiation, versioning, etc. The complete guide to Grape to develop REST-APIs, test the API and analyze the performance metrics is available on its official GitHub page.

Grape (ruby-grape.org)

I'm very ambivalent about Grape, but this very much reminds me of something I do really like about it: the param validation. https://github.com/ruby-grape/grape#parameters

I am currently working on developing and api using grape and devise jwt for user user authentication.

Your RN app will be making http requests to your server, so it doesn't really matter what backend language/framework you use. If your React work was also utilizing http requests to fetch data, then there shouldn't be much of a difference. If your backend is a simple JSON api, checkout Grape. You can tack it on to any existing Rails app.

I've benchmarked Grape with YJIT and without it (if want to see the code, visit repo)

Grape is a REST-like microframework written in Ruby programming language. Grape is also considered among the best ruby frameworks and can be used to run on top of Rack or can be used to complement the existing web application frameworks such as Sinatra or Rails. The latter can be done through the DSL-based REST-API for communication. The Grape ruby web framework facilitates efficient and meaningful APIs working in the web application domain.

Take a look at Grape - https://github.com/ruby-grape/grape

I love the Grape gem for building APIs - might be worth considering if you are building something new: https://github.com/ruby-grape/grape

Grape is a REST-like API framework for Ruby. It’s designed to run on Rack or complement existing web application frameworks such as Rails and Sinatra by providing a simple DSL to easily develop RESTful APIs. 9,200 stars by now