UdemyWeb DevelopmentPaid courseAll LevelsCertificate

Postman Fundamentals in 6 hours (Udemy.com)

Postman API Testing for Manual and Automated Tests for Beginners

4.8

91 reviews

Created by: Valentin Despa

Last updated October 2025

What you will learn

Create GET, POST, PUT, DELETE requests
Understand GET vs POST request method
Work with real-world APIs (Github API, Trello API)
JavaScript basics for tests
Write API tests in Postman
Use data from Excel files (CSV) or JSON
Use Postman variables to create workflows and scenarios
Run API tests with Newman in Jenkins, GitLab CI or TeamCity
Use OAuth2, API keys, tokens, JWT, basic auth
Test file uploads
Use mock servers
Collaborate using Team Workspaces

How it compares

Against the other 815 rated Udemy courses in Web Development on CourseDuck:

Rating4.8 out of 5higher than 94% of them
Reviews91#667 of 816 by number of reviews
Length6.5 hoursshorter than 54% of them
Last updatedOctober 2025more recently than 65% of them

Course Description

Learn Postman with a Postman Supernova.

RESTful APIs (or simply REST API) are everywhere nowadays, but at the same time, they are getting more complex to get started with: different HTTP methods (GET, POST, PUT, PATCH, DELETE), headers, cookies, dealing with file uploads or authentication with API keys, tokens, OAuth and so much more.

This is where the Postman App comes in! Postman allows you very quickly to create a request with the required HTTP method and parameters, submit the request and easily inspect the results.

I have created this course for testing engineers as well as for software developers or other technical positions. Postman can help you during the development of your API, as well as after the API is completed, by running tests that make sure your API is still working as intended.

In the first part of the course, we will start exploring the features of Postman and continue by writing API tests with the intention of integrating them into a CI server where the tests will run on a current basis.

But this is not the normal course you take part in. Because your needs may be different and because I hate leaving you wondering what to do next, the second part of the course will include user questions and answers to problems that were not yet covered in the course or that are more specific and may not interest everybody.

So let’s look at what you are going to learn:

HTTP request methods (GET, POST, PUT, PATCH, DELETE)
JSON format
Start with simple requests and advance toward more complex scenarios
Learn to deal with authentication/authorization using API Keys
Start writing API tests

So after this course, you will know how to use Postman as a pro.

Excited to learn Postman? Join the course today.

Legal Disclaimer

This course is an independent educational resource and is not endorsed by, affiliated with, or associated with Postman, Inc., or any of its products. Postman is a trademark of Postman, Inc. All product names, logos, and brands mentioned in this course are the property of their respective owners.

This course contains promotional materials.

All Levels

Time: 6.5h

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Instructor Details

Valentin Despa

4.8 Rating
91 Reviews

I teach IT professionals what I wish I'd known earlier.

My foundation is built on years in the trenches as an Agile Enterprise Software Developer, engineering solutions for everything from fast-paced start-ups and SMBs to large global corporations. I hold recognized roles as an AWS Community Builder, Postman Supernova, and GitLab Hero, alongside a deep history of securing and building major open-source projects.

For over a decade, I've taken that real-world experience and quietly built one of the largest learning communities around API tooling, test automation, and DevOps practices. What started as a side YouTube channel turned into hundreds of thousands of learners, conference talks, and team workshops at companies most IT professionals have heard of.

The thread through all of it is the same: take something that looks intimidating and break it down so anyone can understand it in plain language.

Lately, I've been spending more time on practical AI in the workplace. I look at how teams can leverage AI for both everyday knowledge work and hands-on IT engineering, like coding and testing. I focus on cutting through the hype to figure out how AI actually helps IT professionals get work done, build, and ship faster. New formats, same approach.