Turn what you know into an opportunity and reach millions around the world.

Your cart is empty.

Postman API Testing: Beginner to Advanced Masterclass

Name: Postman API Testing: Beginner to Advanced Masterclass
Rating: 4.3 (13 reviews)

Master API testing with Postman – from basics to automation, CI/CD integration, GraphQL, performance & security testing.

Created bySelfcode Academy

Last updated 6/2025

English

What you'll learn

Master API Basics & Postman Interface – Understand REST, SOAP, GraphQL APIs and navigate Postman efficiently.
Create & Automate API Requests – Build GET, POST, PUT, DELETE requests with headers, parameters, and request bodies.
Write Tests & Automate Workflows – Use JavaScript in Postman for test scripts, chaining requests, and automation.
Run, Monitor & Document APIs – Perform scheduled testing, create mock servers, and generate professional API documentation.

Course content

16 sections • 43 lectures • 6h 56m total length

1.1 Introduction to Postman8:37
Explore Postman, a tool that helps developers test and document APIs without extra code. Learn what an API is, who uses Postman, and how to test and automate.
1.2 Postman- Installation and setup3:50
Install Postman and set up your account by downloading from the official site and creating a free account. Sign in to explore Postman UI, including workspaces, collections, environments, and history.
1.3 Postman UI6:28
Explore the Postman user interface, including the upper header, sidebar, and builder window, and learn to create requests, view responses, test APIs, and manage workspaces, environments, and histories.
1.4 Basics of API13:13
Understand how APIs enable client-server communication, with an API mediator translating requests and responses. Explore SOAP, REST, and GraphQL: SOAP uses XML, REST uses JSON, GraphQL enables multi-field requests.
1.5 HTTP Requests and Responses8:19
Explore how HTTP requests and responses work, detailing methods, URLs, headers, and bodies, and explain status codes like 200 and 400 to indicate success or errors.
1.6 API Endpoints12:50
Learn how API endpoints work and master the five http methods—get, post, put, patch, and delete—to access, create, update, and remove resources.

2.1 Create Request in postman20:50
Create and organize api tests in postman by crafting get, post, put, patch, and delete requests, using collections, parameters, body, and headers to test demo apis and interpret status codes.
2.2 Query Vs Path Parameter8:15
Understand how path parameters identify a single resource and how query parameters filter, sort, and search multiple results in http requests, using postman for practical demonstrations.
2.3 Headers and their role in API communication9:01
Explore how headers enable secure, properly formatted API communication in Postman, covering authorization with tokens, content type, caching controls, and custom x headers in request and response headers.
2.4 Request Body Type5:00
Explore Postman request body types, including none, form data, form URL encoded, and raw data (JSON, JavaScript, HTML, XML, text), with binary and GraphQL options.

3.1 API Response Codes11:35
Understand HTTP status codes from 100 to 599, learn what 2xx, 4xx, and 5xx codes mean, with Postman examples and a signup flow illustrating created and bad request responses.
3.2 Working with JSON responses6:48
Learn to work with JSON responses in Postman by understanding JSON as key-value data and using the pretty, raw, and preview views to read, debug, and render API data.

5.1 Variables13:58
Learn how variables in Postman store values as key-value pairs and use scopes: global, environment, collection, and local, to simplify and speed up API requests.
5.2 Environments13:34
Learn how Postman environments manage variables as key-value pairs to switch between development, testing, and production without hard coding. Create, save, and use environments to optimize API requests.

6.1 Authentication Types17:25
Explore authentication types in API testing with Postman, including API key, basic auth, bearer token, digest, OAuth 1.0/2.0, and Windows authentication.
6.2 Bearer Token Hands-On10:36
Master bearer token authentication in a Node.js API by generating a token via a login route and testing access to a protected route with Postman.
6.3 Security in API Request13:18
Learn to secure api requests with https, validation and sanitization of input, and authentication. Manage sensitive data using environment secrets and postman secrets, and apply rate limiting to prevent abuse.

7.1 Introduction To Test Scripts12:09
Master Postman test scripts and assertions to automate API testing, validate responses, status codes, and headers, using pre-request and post-response scripts with PM dot test.
7.2 Assertions and Validations8:45
Master assertions and validations in Postman by testing status codes, headers, and response bodies, plus validating JSON schemas. Organize tests with descriptive names and reusable schemas to automate API testing.

8.1 PreRequest and Testscript11:08
Learn to automate API testing in Postman by using pre-request and test scripts within collections to generate dynamic inputs such as random emails, usernames, timestamps, and tokens.
8.2 Using pm object8:05
Master the pm object in postman to read and set environment variables, inspect requests and responses, and automate tests using pre-request and test scripts.
8.3 Chaining API requests10:33
Learn how to chain API requests in Postman by passing IDs and tokens between requests to simulate real app behavior and automate API testing.

9.1 Postman Collection Runner6:03
Run API tests in sequence using Postman collection runner to execute multiple requests in a single go, enabling data driven testing and automation simulations with JSON or CSV data.
9.2 Data Driven Testing8:12
Learn data driven testing with Postman by running a single API test against multiple data inputs using JSON or CSV files in the Postman Runner and Collection Runner.

10.1 Postman Monitors10:26
Learn how Postman monitors run automated, scheduled checks of collections to validate status codes, response times, and properties, enable regression testing, and alert via email on failures.
10.2 Monitor check6:25
Explore how to configure Postman monitors for scheduled API testing, using public endpoints, troubleshoot localhost failures, and interpret monitor health and response time reports.

Requirements

No prior coding or API experience required – This course is designed for absolute beginners.
Basic computer skills – You should be comfortable using a browser and installing software.
A computer with internet access – To download Postman and access APIs.
Curiosity to learn about APIs and software testing – That’s all you really need to get started

Description

Comprehensive Postman Course: Master API Testing from Beginner to Advanced

Welcome to the ultimate Postman course designed to take you from zero knowledge to becoming a confident API testing professional. Whether you’re a beginner looking to understand the basics or a developer/QA engineer aiming to advance your skills, this course covers everything you need to know about Postman and API testing. You’ll gain hands-on experience with real-world projects, automation, and advanced testing techniques.

Why Learn Postman?

Postman is the most widely used API testing tool globally, favored by developers, testers, and DevOps engineers. APIs (Application Programming Interfaces) are the backbone of modern software applications, enabling different software systems to communicate. Testing APIs efficiently ensures your applications work reliably, securely, and fast.

With this course, you’ll learn how to create, test, automate, document, and monitor APIs using Postman — making you an invaluable asset in any software development team.

What This Course Covers:

Our curriculum is designed to progress logically from basic concepts to advanced topics, ensuring you build a solid foundation and gain practical skills.

Module 1: Introduction to APIs & Postman

Start with the fundamentals. Understand what APIs are, why they’re critical, and how Postman fits into the development workflow. You will install Postman, learn its user interface, and explore basic API concepts like REST, SOAP, and GraphQL. Learn how HTTP works and the key request methods (GET, POST, PUT, DELETE, PATCH) to interact with APIs.

Module 2: Understanding HTTP Methods & Requests

Dive deeper into making API requests. You’ll practice creating GET, POST, PUT, DELETE requests, and learn how to send parameters, headers, and authentication details. We explain query vs path parameters, the importance of headers, and different request body types (form-data, JSON, etc.).

Module 3: Handling API Responses

Learn to interpret API responses effectively. This module covers HTTP status codes, handling errors, and extracting useful information from JSON responses. You’ll work hands-on with public APIs to analyze real response data, which is vital for debugging and validation.

Module 4: Collections & Workspaces in Postman

Organizing your work efficiently is key to productivity. Learn how to create and manage Postman collections and workspaces, share them with teams, and handle multiple projects smoothly. This module includes practical exercises on organizing APIs in collections and using personal and team workspaces.

Module 5: Variables & Environments

Learn how to make your API tests dynamic and reusable by using variables. Understand global, environment, collection, and local variables and how to use them in requests. Manage multiple environments like development, testing, and production with environment variables to switch contexts easily.

Module 6: Authentication & Security in API Testing

APIs often require authentication. This module covers different authentication mechanisms like API Keys, Basic Auth, Bearer Tokens, OAuth 1.0 & 2.0, and more. Learn how to keep sensitive data secure using Postman’s environment secrets and safely test authenticated endpoints.

Module 7: Writing Tests in Postman (JavaScript)

Automate API validation with Postman’s powerful scripting capabilities. You will learn JavaScript basics tailored for Postman, write test scripts with pm.test(), and validate responses, status codes, headers, and JSON content to ensure your API works as expected.

Module 8: Automation with Postman Scripts

Advance your automation skills by chaining requests, using dynamic data, and writing pre-request scripts. Learn how to pass data between requests and automate multi-step workflows that simulate real-world API interactions.

Module 9: Running API Tests with Postman Runner

Test entire API collections at once using Postman’s Collection Runner. Understand iterations, data-driven testing with CSV and JSON datasets, and how to parameterize requests for bulk testing. This is essential for robust and scalable API test suites.

Module 10: Postman Monitors & Scheduled API Testing

Automate API testing by scheduling monitors to run tests periodically, monitor uptime, and track performance. Learn to analyze monitor reports and set up alerts for failures to ensure continuous API reliability.

Module 11: Mock Servers & API Documentation

Create mock APIs to simulate server responses during development. Learn how to set up mock servers and generate API documentation automatically from your collections, enabling better collaboration and communication with stakeholders.

Module 12: Integrating Postman with CI/CD Pipelines

Discover how Postman fits into DevOps. Run API tests as part of Jenkins, GitHub Actions, or GitLab CI pipelines using Newman, Postman’s CLI tool. Automate testing in continuous integration workflows and export reports for analysis.

Module 13: GraphQL & SOAP API Testing

Expand your API testing skills beyond REST. Learn to test GraphQL queries and mutations and work with SOAP APIs, including understanding XML payloads and WSDL files. These skills are critical for comprehensive API testing in varied environments.

Module 14: Advanced Debugging & Troubleshooting

Master debugging techniques to handle common API errors like timeouts, CORS issues, and authorization failures. Use the Postman Console and scripting breakpoints to diagnose problems and fix failing tests quickly.

Module 15: Performance Testing with Postman

Understand API performance metrics such as latency and throughput. Learn to run stress tests, analyze response times, and generate reports, helping you optimize APIs for speed and scalability.

Module 16: Final Project & API Testing Case Study

Apply everything you’ve learned in a capstone project where you develop an end-to-end API testing workflow for a real-world API. Implement authentication, automation, documentation, and CI/CD integration. Receive peer reviews and feedback to polish your skills.

Who Should Take This Course?

Beginners with no prior experience who want to enter the world of API testing.
Developers seeking to improve their API testing skills and automate tests.
QA Engineers looking to enhance their testing toolset.
DevOps Engineers aiming to integrate API tests into CI/CD pipelines.
Project Managers and Product Owners who want to understand API testing basics to better collaborate with tech teams.

What You’ll Gain

In-depth understanding of APIs and HTTP protocols.
Practical hands-on experience with Postman UI and advanced features.
Ability to write and automate API test scripts using JavaScript.
Skills to create mock servers and generate API documentation.
Expertise in integrating API testing into DevOps workflows.
Capability to debug, troubleshoot, and optimize API performance.

Why Choose This Course?

Detailed step-by-step tutorials for all levels.
Real-world practical exercises and projects.
Clear explanations with a focus on industry best practices.
Up-to-date content covering latest Postman features.
Learn to handle REST, SOAP, and GraphQL APIs.
Support for continuous learning with future career path guidance.

Tools Required

A computer with internet access.
Postman installed (free version sufficient for most exercises).
Basic understanding of JavaScript (covered in course for beginners).

Conclusion

This course offers the most comprehensive learning path for mastering API testing with Postman. Whether you want to become a skilled API tester or improve your development workflow, this course equips you with all the knowledge and practical skills needed to succeed in today’s API-driven software landscape.

Enroll now and transform your API testing skills from beginner to advanced!

Who this course is for:

Beginners who want to understand APIs and how to test them using Postman.
Aspiring QA testers and software testers looking to add API testing to their skillset.
Developers and backend engineers who want to automate and document API testing workflows.
Students and fresh graduates aiming to strengthen their practical knowledge of modern tools used in real-world software development.
Technical support engineers, analysts, or product managers who work with APIs and need hands-on experience for better collaboration with developers.

Postman API Testing: Beginner to Advanced Masterclass

What you'll learn

Explore related topics

Course content

Introduction to APIs & Postman6 lectures • 53min

Understanding HTTP Methods & Requests4 lectures • 43min

Handling API Responses2 lectures • 18min

Collections & Workspaces in Postman1 lecture • 10min

Variables & Environments2 lectures • 28min

Authentication & Security in API Testing3 lectures • 41min

Writing Tests in Postman (Postman JavaScript)2 lectures • 21min

Automation with Postman Scripts3 lectures • 30min

Running API Tests with Postman Runner2 lectures • 14min

Postman Monitors & Scheduled API Testing2 lectures • 17min

Requirements

Description

Who this course is for: