Top 5 Postman Tutorials and Courses for REST API Testing in 2020

There is no doubt that Postman is one of the most popular and essential tools for API development and testing, particularly for front-end web developers. It is used by over 3 million developers across the world, which is a good indication of the fact that Postman is an essential tool for REST API development and API Testing. It is also one of the vital tools for Web Developers, and I have already included Postman in my list of 10 Things Every Web Developer should learn in 2020. If you agree with me that Postman is definitely worth learning for frontend and backend developers and looking for some excellent resources to master this awesome tool, then you have come to the right place. In this article, I am going to share some of the best online courses and tutorials to learn Postman for API testing and development.

Before exploring Postman, let's talk about REST APIs which has completely changed how frontend should interact with backend systems. RESTful APIs are everywhere in the modern web world. Still, at the same time, they are also getting more and more complex like different HTTP methods, headers, cookies, dealing with file uploads or authentication with API keys, tokens, OAuth, and so much more.

As a developer, its not easy to work with a new API and it also makes a lot of sense that before start investing your time writing code to retrieve the data the API is offering, why not test the request first to make sure everything is working as expected?  This is where the Postman App comes in! Postman allows you to quickly create a request with the required HTTP method and parameters, submit the request, and promptly inspect the results.

When working with an API, there's always so much to remember, such as any special API keys, different URLs for different environments, as well as the shape that each request should take. In Postman Fundamentals, you'll learn how Postman can help simplify working with an API.

It allows you to use variables so that the same request works, whether it's in the testing or staging environment. You'll also learn how you can create automated API tests so that you ensure your API doesn't break between releases.

You'll even see how Postman simplifies writing documentation for your API so that your users can have an up-to-date explanation of what your API is doing. By the end of this course, you'll know the ins and outs of Postman, and be equipped to maximize your interactions with APIs.

5 of the best courses to learn Postman in 2020

If you want to learn the Postman tool and looking for some excellent resources like tutorials and courses, then you have come to the right place. Without wasting any more of your time, here is my list of some of the best courses to learn Postman for REST API development and testing.

These courses are from popular online platforms like Udemy, Pluralsight, and Coursera and taught by expert Web and API developers who have extensive knowledge of both Postman and real-world API development.

1. Postman Crash Course for Beginners - Learn API Testing

This is one of the short and best Postman tutorial which will teach you all essential things about the Postman App you need to write test case for your REST API. Taught by Postman expert, Valentin Despa, this course is like a god gift for API developers.

In this Postman crash course for beginners, you will first start by exploring the essential features of Postman, creating requests, and building simple workflows.

After that, you will learn how to write API tests and automatically running a Postman collection by using the Postman Collection Runner. By the end of this course, you should have enough knowledge about the Postman App and how to test your API using Postman.

Talking about social proof, this course is trusted by more than 25,000 students, and it has, on average, 4.4 ratings from close to 2400 participants, which is remarkable. If you want to learn an excellent tool in 2020, make it Postman and join this course to master the Postman App.

2. Postman: The Complete Guide - REST API Testing

This is another great course to learn Postman and REST API testing by Valentin Despa, author of the previous class. While the previous one was a crash course with just 1 hour of content and covering the only most crucial aspect of Post and API Testing, this course is very comprehensive and packed with more than 13.5 hours of content on Postman API testing for manual and automated tests.

You will not only learn all the features of the Postman App but also write API test cases and learn how to automate with Newman, Jenkins, or any other CI tool.

This is a very organized course and target for testing engineers and developers. So, if you are one of them who are responsible for testing REST APIs, this course and tool are for you.

Talking about social proof, this course has, on average, 4.5 ratings from 2,599 participants, and more than 13,469 students have already put their faith in this course.

3. Postman Fundamentals By Nate Taylor

This is a great course to learn Postman on Pluralsight. In this course, you will learn the fundamentals of Postman, how you can issue requests, create automated API tests, and even document your API with Postman.

You'll also learn how Postman simplifies writing documentation for your API so that your users can have an up-to-date explanation of what your API is doing.

After completing this course, you will know both the pros and cons of Postman and be equipped to maximize your interactions with APIs.

If you have Pluralsight membership, this is the course you should join to learn this excellent API testing tool. If you don't have Pluralsight membership, then you can also try out their 10-day free trial , which provides 200 minutes of free watch time to access this course for free.

4. REST API Testing, Automation using Postman

If, for some reason, you don't connect with Valentine Despa and need some other option, I recommend this extensive Postman course created by Tejasvi Hegde. It's a very hands-on and practical course, and you will learn so many useful tips and tricks for REST API testing and automation using Postman App.

In this course, you will learn many functionalities of the Postman tool with practical examples like how to capture Network Traffic by setting up Proxies, how to organize requests using Collections, and doing multi-part File Uploads.

You will also learn how to send SOAP Requests using Postman,  Perform data-driven testing (like creating 1000 orders with a click of a button) and perform different types of Authentication like BASIC, OAuth 1.0, and OAuth 2.0

Whether you are developing API's or testing them, this course will provide you with all the examples needed to understand the Rich features provided by POSTMAN.

5. Five Essential Tools for Building REST APIs By Elton Stoneman

REST APIs are a great way to connect systems together, and that's why they are also popular. They are platform-independent and work on simple, well-established standards that are designed to support high performance, massive scale, and secure communication.

In order to become a good API developer, its critical to know some essential tools like Postman, and this course presents a toolset for delivering better REST APIs that give clients what they need, run fast, scale well, and are easy to look after.

If you want more tools along with Postman App, then this is an excellent course to join. Though, you will need a Pluralsight membership to access this course. If you don't have a membership, you can still access this course by joining their 10-day free trial, which allows 200 minutes of free access to all their 5000+ courses.

That's all about some of the best courses to learn the Postman tool for REST API development and testing in 2020. As I have said, Postman is one of the most powerful tools and it really makes working with REST API easy. You can download the Postman desktop client or use the Postman extension on Chrome to effectively interact with REST API for development and testing. Learning a tool like Postman not only make you better in your day-to-day job but also make you a valuable resource when you look for change. It's a definitely a great tool to learn in 2020 for web developers.

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Thanks for reading this article so far. If these courses help you to learn Postman better, than please share with your friends and colleagues. If you have any questions or feedback, then please drop a note.