Postman: The Complete Guide - REST API Testing from Udemy

What's inside

Learning objectives

Create get, post, put, delete request
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
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Create get, post, put, delete request
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
Show more
Show less

Syllabus

First steps in Postman, including installation and making a basic API call. Introduction to the API term and the HTTP request methods.

In this lecture, I wanted to give you an overview of the entire course.

About the course

How to install Postman

A quick introduction to APIs

Welcome to the first quiz of this course! This section is packed with information. Let's pause for a second and make sure you understand the most important ideas so far.

In this quiz, we'll be testing your knowledge about installing Postman, as well as some core concepts around APIs.

Let's get started!

Your first Postman request

Troubleshooting Postman errors

Using Postman on the web

A brief overview of HTTP

The Postman Landscape

This section was packed with information. Let's make sure you got the most important concepts so far.

In this quiz, we'll be testing your knowledge about APIs, as well as some core concepts around HTTP.

Let's get started!

Learn how to use the different HTTP request methods (GET, POST, PUT, PATCH & DELETE) against an API. Learn the basics of JSON and use Postman collection variables.

Section overview

Resources for this section

Postman collections allow you to organize and group your API requests in a way that makes them easy to find, use, and share with others.

A Postman collection is a group of requests. Each request in a collection has its own set of properties, such as the request method, URL, and headers. You can also add documentation and test scripts to each request, which can be useful for testing and debugging your API.

Storing configuration in collection variables

Modifying collection variables

Understanding how Postman collections and variables work is key to properly using Postman and not running into issues.

Let's make sure you understand everything so far.

GET request

Visualizing responses in Postman

Query parameters

Misconceptions about API parameters

You will be working a lot with query parameters in Postman. Let's do a quick quiz to make sure that you understand the most important ideas about query parameters when dealing with APIs.

Assignment - Query parameters

Before watching the solution to this assignment, please use this quiz to test how many of the steps in this assignment you have managed to complete.

You should be able to complete at least 6/8 steps. If you are below this threshold, please revisit the previous lectures in this section.

If you can't complete a step, that's fine. Simply click on "No," and after this, click on "Skip question."

Assignment - Query parameters - Solution

Shortcuts in Postman

Path variables

Troubleshooting Path variables

Query params vs Path variables

The business processes and rules behind an API

POST request

Assignment - Check cart contents

Before watching the solution to this assignment, please use this quiz to test how many of the steps in this assignment you manage to complete on your own.

You should be able to complete at least 5/8 steps. If you are below this threshold, please revisit the previous lectures in this section.

If you can't complete a step, that's fine. Simply click on "No," and after this, click on "Skip question."

Assignment - Check cart contents - Solution

JSON format explained

POST request with JSON

Troubleshooting POST requests

GET vs POST

POST requests with JSON

API Authentication

Troubleshooting HTTP status codes

Assignment - Place an order

Before watching the solution to this assignment, please use this quiz to test how many of the steps in this assignment you manage to complete on your own.

You should be able to complete all steps in this assignment. If you are below this threshold, please revisit the previous lectures in this section.

If you can't complete a step, that's fine. Simply click on "No," and after this, click on "Skip question."

Troubleshooting - Place an order

Assignment - Place an order - Solution

Using random data in requests (random variables)

Working with HTTP headers in Postman

Common questions about HTTP headers

Headers vs query vs params

Exporting and Importing a Postman collection

PATCH request method

Assignment - PATCH request method

Assignment - PATCH request method - Solution

Using Postman variables to avoid duplication

PATCH request method - continued

PUT request method

DELETE request method

Assignment - Delete an order

Assignment - Delete an order - Solution

GET, POST, PUT, PATCH … What is the difference?

HEAD request method

While any API documentation should provide enough guidance in terms of which HTTP methods to use, let's make sure you get a general idea about why we have different HTTP methods.

Assignment - Valentin's Book List API

This assignment is designed to test what you have learned in this section.

Try to complete at least 7/9 steps in this assignment. If you are below this threshold, please revisit the previous lectures in this section.

If you can't complete a step, that's fine. Simply click on "No," and after this, click on "Skip question."

Assignment - Valentin's Book List API - Solution

Practice that you have learned in the previous section by using a real-world API.

Why learn to use real-world APIs?

Troubleshooting

Using the API documentation

Using the API documentation - Assignment

This assignment will guide you through reading the Trello API documentation and making your first requests.

Try to complete at least 10/12 steps in this assignment. If you are below this threshold, please revisit the previous lectures in this section.

If you can't complete a step, that's fine. Simply click on "No," and after this, click on "Skip question."

Using API documentation - Assignment Solution

Using identifiers when working with resources

Assignment - Creating resources - Lists

This assignment will guide you through reading the Trello API documentation and adding two lists to a Trello board: TODO and DONE.

Try to complete ALL steps in this assignment on your own. If you face any issues, please revisit the previous lectures in this section.

If you can't complete a step, that's fine. Simply click on "No," and after this, click on "Skip question."

Assignment - Creating resources - Lists - Solution

Assignment - Creating resources - Cards

This assignment will guide you through reading the Trello API documentation and creating a card within the TODO list.

Try to complete ALL steps in this assignment on your own. If you face any issues, please revisit the previous lectures in this section.

If you can't complete a step, that's fine. Simply click on "No," and after this, click on "Skip question."

Assignment - Creating resources - Cards - Solution

Assignment - Managing resources

This assignment will guide you through reading the Trello API documentation and finding a way to move a card from the TODO list to the DONE list.

Try to complete ALL steps in this assignment on your own. If you face any issues, please revisit the previous lectures in this section.

If you can't complete a step, that's fine. Simply click on "No," and after this, click on "Skip question.”

Assignment - Managing resources - Solution

Assignment - Deleting resources

This assignment will guide you through reading the Trello API documentation and finding a way to delete a board from your Trello account.

Try to complete ALL steps in this assignment on your own. If you face any issues, please revisit the previous lectures in this section.

If you can't complete a step, that's fine. Simply click on "No," and after this, click on "Skip question.”

Assignment - Deleting resources - Solution

Protect your API keys

Get familiar to JavaScript in order to better understand tests and scripts.

A short history of JavaScript

Your first Postman script

Your first API test in Postman

Defining JavaScript variables

Using “let” to define JavaScript variables

Conventions for naming JavaScript variables

Working with JavaScript variables

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Introduces API terminology and walks students through making a basic API call

Explores HTTP request methods, JSON format, and Postman collection variables

Provides hands-on exercises with real-world APIs, such as GitHub API and Trello API

Suitable for beginners with no prior knowledge of API testing

Covers essential concepts of API testing, including writing and organizing API tests

Does not cover advanced topics such as performance testing or security testing

Reviews summary

A comprehensive guide to postman

According to students, the course titled Postman: The Complete Guide - REST API Testing offers a comprehensive overview of Postman's features. Learners say that the course is engaging and provides valuable, practical knowledge.

In-depth exploration of Postman's features

"The course is really complete!"

"I learned how to use features I didn't even knew they existed."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Postman: The Complete Guide - REST API Testing with these activities:

Join a Postman user group or forum

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Joining a Postman user group or forum will allow you to connect with other Postman users and learn from their experiences.

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Find a Postman user group or forum
Join the group or forum
Participate in discussions and ask questions

Complete Postman Crash Course Tutorial

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This tutorial provides a quick and easy way to get started with Postman.

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Watch the Postman Crash Course Tutorial
Follow along with the tutorial steps
Complete the tutorial exercises

Review RESTful APIs

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To be successful in this course, you should be fully comfortable with HTTP Request Methods and how to use RESTful APIs.

Browse courses on RESTful APIs

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Read and summarize article on RESTful APIs
Practice making HTTP requests using Postman
Review your notes on RESTful APIs

Three other activities

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Show all six activities

Practice writing API tests

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Writing API tests is an essential skill for testing and debugging APIs.

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Write API tests for simple API endpoints
Test API responses for expected values
Use Postman's built-in testing tools

Build a simple API testing framework

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Building a simple API testing framework will help you automate API testing and improve the reliability of your tests.

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Design the architecture of your testing framework
Implement the core functionality of your framework
Test your framework and make necessary adjustments

Participate in a Postman hackathon

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Participating in a Postman hackathon will challenge you to use your Postman skills to solve real-world problems.

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Find a Postman hackathon
Register for the hackathon
Develop a solution to the hackathon challenge

Career center

Learners who complete Postman: The Complete Guide - REST API Testing will develop knowledge and skills that may be useful to these careers:

API Developer

API Developers are responsible for designing, developing, and maintaining APIs. This includes working with other developers to define the API's requirements, creating the API's documentation, and writing the code that implements the API. Postman can help you design, develop, and test APIs. You can use Postman to create mock servers, generate API documentation, and run API tests. This course can help you build a strong foundation of Postman knowledge and skills that will help you to be successful as an API Developer.

See salaries and explore the career path for API Developer

Integration Engineer

Integration Engineers work with software developers to integrate different software systems. This may involve creating custom code, writing scripts, or configuring software settings. Postman can help you to test and debug integrations. You can use Postman to create mock servers, generate API documentation, and run API tests. This course can help you develop the skills you need to be successful as an Integration Engineer.

See salaries and explore the career path for Integration Engineer

Quality Assurance Tester

Quality Assurance Testers are responsible for ensuring the quality of software products. This includes developing and executing test plans, writing test cases, and identifying and reporting bugs. Postman can help you develop and execute API tests that ensure that software is functioning as expected. You can also use Postman to monitor and manage the results of your tests, and create reports that can be used to improve the quality of software products.

See salaries and explore the career path for Quality Assurance Tester

DevOps Engineer

DevOps Engineers bridge the gap between software development and operations. They work to ensure that software is developed and deployed in a reliable and efficient manner. Postman can help you to test and deploy software. You can use Postman to create mock servers, generate API documentation, and run API tests. This course can help you to develop the skills you need to be successful as a DevOps Engineer.

See salaries and explore the career path for DevOps Engineer

Software Architect

Software Architects design and develop software systems. They work with stakeholders to define the system's requirements, create the system's architecture, and oversee the system's development. Postman can help you to test and debug software systems. You can use Postman to create mock servers, generate API documentation, and run API tests. This course may help you to gain some additional tools to use in your role as a Software Architect.

See salaries and explore the career path for Software Architect

Software QA Engineer

You will work directly with Software Developers and Test Analysts to create tests to ensure existing or new software is free of bugs. During the testing process, you work closely with the product, engineering, and development teams to identify, document, analyze, and resolve software defects. Postman can help you design tests that match the precise needs of an application. You can also use Postman to run tests in a variety of environments, including cloud-based and on-premises environments, and monitor and manage the results. This course can help you build a strong foundation of Postman knowledge and skills that will help you to contribute to the success of software projects.

See salaries and explore the career path for Software QA Engineer

Software Engineer

Software Engineers design, develop, and maintain software systems. This may involve working on a variety of projects, from small bug fixes to large-scale system redesigns. Postman can help you to test and debug software. You can use Postman to create mock servers, generate API documentation, and run API tests. This course can help you develop the skills you need to be successful as a Software Engineer.

See salaries and explore the career path for Software Engineer

Technical Support Engineer

Technical Support Engineers provide technical support to users of software products. This may involve answering questions, resolving problems, and providing documentation. Postman can help you to troubleshoot software problems. You can use Postman to create mock servers, generate API documentation, and run API tests. This course may enable you to gain some additional tools to use in your role as a Technical Support Engineer.

See salaries and explore the career path for Technical Support Engineer

Product Manager

Product Managers are responsible for the development and management of software products. This may involve working with customers, developers, and other stakeholders to define the product's requirements, creating the product's roadmap, and monitoring the product's performance. Postman can help you to understand how software is developed and tested. You can use Postman to create mock servers, generate API documentation, and run API tests. This course may help you to gain some additional tools to use in your role as a Product Manager.

See salaries and explore the career path for Product Manager

Data Analyst

Data Analysts collect, clean, and analyze data to identify trends and patterns. This information can be used to make decisions about product development, marketing, and other business operations. Postman can help you to extract data from APIs. You can use Postman to create mock servers, generate API documentation, and run API tests. This course may help you to gain some additional tools to use in your role as a Data Analyst.

See salaries and explore the career path for Data Analyst

Project Manager

Project Managers plan, execute, and close projects. They work with stakeholders to define project goals, develop project plans, and track project progress. Postman can help you to manage software development projects. You can use Postman to create mock servers, generate API documentation, and run API tests. This course may help you to gain some additional tools to use in your role as a Project Manager.

See salaries and explore the career path for Project Manager

IT Auditor

IT Auditors evaluate the security and efficiency of computer systems and networks. Postman can help you to test and debug software systems and networks.

See salaries and explore the career path for IT Auditor

Business Analyst

Business Analysts work with businesses to identify and solve problems. They may use data analysis, process mapping, and other techniques to understand how a business operates and to identify areas for improvement. Postman can help you to understand how software is developed and tested. You can use Postman to create mock servers, generate API documentation, and run API tests. This course may help you to gain some additional tools to use in your role as a Business Analyst.

See salaries and explore the career path for Business Analyst

Information Security Analyst

Information Security Analysts protect computer systems and networks from unauthorized access, use, disclosure, disruption, modification, or destruction. Postman can help you to test and debug software systems.

See salaries and explore the career path for Information Security Analyst

Scrum Master

Scrum Masters facilitate Scrum teams. They work with the team to define sprint goals, track progress, and remove obstacles. Postman can help you to manage software development projects. You can use Postman to create mock servers, generate API documentation, and run API tests. This course may help you to gain some additional tools to use in your role as a Scrum Master.

See salaries and explore the career path for Scrum Master