Book Image

API Testing and Development with Postman - Second Edition

By : Dave Westerveld
5 (1)
Book Image

API Testing and Development with Postman - Second Edition

5 (1)
By: Dave Westerveld

Overview of this book

Postman is an invaluable tool for exploration and testing of web APIs and helping testers and developers figure out how an API works. With Postman, you can create effective test automation for any APIs, and this guide will help you unleash its full potential. API Testing and Development with Postman is an invaluable resource for anyone who wants to create a good quality API, but isn't sure how to go about it. This guide will help you unleash the full potential of Postman’s test automation capabilities. A combination of theory coupled with real-world examples will help you learn how to use Postman to create well-designed, documented, and tested APIs. After you’ve familiarized yourself with the theory, you’ll move on to hands-on projects that will teach you how to add test automation to an existing API. You’ll also learn some of the new and powerful features that Postman has that can help you avoid introducing bugs. This second, fully updated edition features new chapters on workflow testing, creating and using mock servers, API security testing, and performance testing. The new and expanded information in this edition will help you future-proof your APIs. By the end of this book, you'll be able to use Postman to set up and run API tests for any API that you are working with.
Table of Contents (12 chapters)
1
API Testing and Development with Postman, Second Edition: API creation, testing, debugging, and management made easy

Using environments in Postman

Postman environments are a place where you can create and manage variables. You can set up multiple environments for different purposes. Environments are very helpful when you need to share data between requests, and so in this section, I will show you how to use them to manage your variables. You can also manipulate variables in the environment, and I'll show you how to do that as well so that you can also use Postman environment to help you explore or debug issues. In the first place, let's look at how to manage variables using environments.

Managing environment variables

Creating an environment is easy. Follow these steps to create one:

  1. Click on the New button and then select the Environment option.

You can give your environment a name; in this case just call it something like SWAPI Env. You can then start creating variables in the environment. Let's use this environment to manage the resident variable that you are currently setting in...