In this chapter we will start explaining in detail how APIs should be designed. We will define what APIs are and will describe a set of characteristics that we think make up a good API, using what you now recognize as our opinionated approach.
We'll then explain how you should design your own APIs by describing a set of APIs from our bookstore sample application, listing each use case and describing our thought process when defining inputs and outputs for each API.
Introducing APIs
To answer the question ...
