Part of the beauty of using a backend is to facilitate communication between your application, the filesystem, and APIs. Previously, all the work we did was constrained to the frontend with no persistence. We'll now make a recipe book application that saves our information in JSON format. Don't worry, we'll get to using databases in Chapter 18, Node.js and MongoDB. For now, we'll use local files. Here's what we're going to build:
Figure 15.3 - Our recipe book
To get started, we'll be setting up credentials using a third-party API and then forge onward with the code.