Back in Episode #106, we configured and deployed to a very simple AWS Beanstalk environment. However, in this episode, we take things a bit further and explore security groups, an existing database and redis service. Also, there are a few changes that we have to do in order to get Rails 6 working within Beanstalk.

In this episode, we look at the Liskov Substitution Principle. If S is a subtype of T, then objects of type T may be replaced with objects of type S without altering any of the desirable properties of the program.

We look at 4 different ways to add Bootstrap v5 to our Rails application. Depending on your application's direction, you may choose the appropriate route; Webpacker, the Bootstrap gem, CDN or Hotwire + yarn.

A class should only have a single responsibility, that is, only changes to one part of the software's specification should be able to affect the specification of the class.

In this episode, we look at setting up a Rails 7 API (only) application and create our own authentication solution. We'll also write the tests around the different controller endpoints that we create to make sure that we have good test coverage and functionality.