If you’re reading this book in chronological order, you’ve made it through the important, but somewhat dry, details of the API reference and have been exposed only to abstract solutions. Now that you’ve reached Part 4, the excitement begins, because the five chapters in this part are all about coding and examples!
The tutorial in this chapter demonstrates how to use Express.js with an external, third-party service (Storify API). The purpose of this application is to fetch Instagram photos from Storify and display them in a gallery. In addition to Express.js, we’ll use the following three modules: