Building a Sinatra API backend with Active Record Associations

In this blogpost let's go step by step and build your own Sinatra API backend that uses Active Record to access and persist data in a databaseActiveRecord and SinatraActiveRecord can be used in conjunction with Sinatra to handle creating the data tables used to store the data being asked for by HTTP requests.ActiveRecord is the model portion of MVC (model-view-controller) which is in charge of creating objects whose data is needed to persist within a SQL database. It helps developers create database migrations with methods put in place with a little bit of metaprogramming magic!We build our data tables and data models out with ActiveRecord, and then control what data we are querying our database for within our Sinatra routes.