Let's go directly to build the example API. To be more realistic, let's write a user story similar to a backlog list in agile methodologies.
Let's understand what problem we need to solve by the API.
We need a web application to manage speakers on a conference event. The main task is to store the following speaker information on an API:
Name
Company
Track title
Description
A speaker picture
Schedule presentation
For now, we need to add, edit, and delete speakers. It is a simple CRUD function using exclusively the API with JSON format files.