In DetailShopify is an e-commerce website platform that allows merchants to create and run their own online store. The Shopify App Store is a collection of apps that extend the capabilities of online stores and is a perfect place to earn recurring revenue.Shopify Application Development will teach you to build Shopify apps using Ruby on Rails, deploy them to Heroku, and publish them in the Shopify App Store. Additionally, you will learn how to receive recurring revenue via the Shopify Billing API.This is an easy-to-follow manual that will guide you through the entire process of application development with Shopify. This book focuses on building and launching a single application using best practices such as Test-Driven Development (TDD), agile methodologies, and iterative development from start to finish.ApproachThis is an easy-to follow manual that will guide you through the entire process of application development with Shopify, beginning with the installation and configuration of your local development environment for your app to the deployment of the app to Heroku.Who this book is forIf you are a web developer or a designer who wants to extend Shopify stores by building apps, then this book is for you. A basic understanding of programming concepts and some familiarity with Shopify is all that is required to get started with Shopify app development.