Book Image

API Testing and Development with Postman

By : Dave Westerveld
1 (1)
Book Image

API Testing and Development with Postman

1 (1)
By: Dave Westerveld

Overview of this book

Postman enables the exploration and testing of web APIs, helping testers and developers figure out how an API works. With Postman, you can create effective test automation for any APIs. If you want to put your knowledge of APIs to work quickly, this practical guide to using Postman will help you get started. The book provides a hands-on approach to learning the implementation and associated methodologies that will have you up and running with Postman in no time. Complete with step-by-step explanations of essential concepts, practical examples, and self-assessment questions, this book begins by taking you through the principles of effective API testing. 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. You'll then be able to try some hands-on projects that will teach you how to add test automation to an already existing API with Postman, and guide you in using Postman to create a well-designed API from scratch. 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 (19 chapters)
1
Section 1: API Testing Theory and Terminology
6
Section 2: Using Postman When Working with an Existing API
13
Section 3: Using Postman to Develop an API

To get the most out of this book

This book does not assume a lot of prior knowledge in either the realm of API development or in testing principles. As long as you have a basic grasp of web technology and what software development looks like in general, you should be able to follow along with this book and pick up everything that you need. Some of the testing in Postman uses JavaScript, but you don't need to know much about how that works in order to follow along, although a basic understanding would be helpful. There are examples and challenges throughout the book. These are an important part of the book and in order to get the most that you can from them, you should take the time to work through them.

This book only uses the free features of Postman and Burp Suite, so you should be able to follow along with all the examples without needing to buy anything.

If you are using the digital version of this book, we advise you to type the code yourself or access the code via the GitHub repository (link available in the next section). Doing so will help you avoid any potential errors related to the copying and pasting of code.

This book is intended to equip you with skills that you can use immediately in your work as a tester or developer. The best way to get the most out of it is to do all the hands-on challenges and try to expand them into the work that you are doing. Don't hesitate to start using what you learn right away!