Designing an API

I have talked about a lot of the theory of API design, so now I want to look at how you can use Postman to help you out with designing an API. API design does not only apply to new APIs that you create. In fact, using the principles of API design when testing an existing API is a great way to find potential threats to the value of that API, but for the sake of understanding this better, let's look at how you can design an API from scratch. If you understand the principles through this kind of example, you should be able to use them on existing APIs as well.

Case study – Designing an e-commerce API

Let's imagine that we want to design an API for a very simple e-commerce application. This application has a few products that you can look at. It also allows users to create a profile that they can use when adding item to their cart and purchasing them. The purpose of this API is to expose the data in a way that can be used by both the web and mobile application...