Postman
MentionedTool
Tool for composing, sending and testing API requests without writing a client yourself.
Postman, explained
Written by EduVerseWhat it is
Postman is a desktop and web app for sending HTTP requests to an API and inspecting the responses. You fill in the URL, method, headers and body in a form instead of writing code, and save requests in collections you can share with your team.
Why teams use it
When you build or call an API, you want to try endpoints quickly without a frontend. Postman adds environments (local, test, production) with variables, scripts that check responses, and Newman to run collections from the command line in CI. Lighter alternatives are curl, Bruno or the .http files many editors support.
An example from work
You import the team’s collection, choose the staging environment and send POST {{baseUrl}}/orders. The response is 401 Unauthorized until you request a fresh token, store it in the environment and let the Authorization tab send it as a Bearer token.
Our own explanation, not a quote from the book.
Where it fits
Exploring, testing and documenting APIs
Coverage in the book
Mentioned as part of the wider landscape, without in-depth coverage.