<p>In a <a href="/2014/12/04/add-json-web-token-authentication-to-your-angular-rails-app">previous post</a>, I went over how to add authentication to your Rails + Angular app using JSON Web Tokens (JWT). This time, I’ll do the same, but using the <a href="2015/07/17/how-to-replace-the-angular-stack-with-the-react-ecosystem">React ecosystem</a>. But even if you’re using another front-end framework (Angular, Ember, Backbone), this post will be helpful because it fixes some issues with the previous server-side code that broke due to a change in the <a href="https://github.com/progrium/ruby-jwt">jwt gem</a>.</p> <p></p>