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🚀 Career Upgrader

API Testing with Postman

Manual testing is vanishing. The web is built on APIs. Learn to test, validate, and automate backend APIs using Postman. Move from "Tester" to "Technical QA".

2
Weeks (Weekend)
JSON
Deep Dive
Auto
Automation Basics
API Testing with Postman Hero

Why API Testing?

Because waiting for the UI to be ready is too slow. Test the core.

🔍 Test Early (Shift Left)

UI often breaks or isn't ready. Testing APIs allows you to find critical bugs in the logic layer before the frontend is even built.

💰 Higher Salary

Technical testers who know Postman and SQL earn 30-40% more than pure manual testers. It is a mandatory skill for senior roles.

🤖 Gateway to Automation

Writing scripts in Postman is the easiest way to learn coding. You write JavaScript without analyzing complex frameworks.

Tech Stack You'll Master

Postman
Postman
JSON
JSON
JavaScript
JavaScript (Basic)
Swagger
Swagger

Zero to Hero Agenda

From understanding what an API is to writing automated test scripts.

Week 1 Fundamentals

Manual API Testing

Understanding the core concepts before automation.

  • Understanding Architecture: Client-Server model, Request/Response cycles.
  • HTTP Methods: GET (Read), POST (Create), PUT/PATCH (Update), DELETE (Remove).
  • Status Codes: 2xx (Success), 3xx (Redirect), 4xx (Client Error), 5xx (Server Error).
  • Payloads: Reading and writing JSON. Query Params vs Path Variables.
  • Hands-on Project: Testing a "Booking Application" API manually in Postman.
Week 2 Automation

Advanced & Automation

Writing scripts to automate your daily tasks.

  • Variables: Using Global, Collection, and Environment variables for dynamic testing.
  • Chaining Requests: Extracting a Token from Login and passing it to "Create Order".
  • Test Scripts: Writing Snippets to validate Status Code, Response Time, and JSON body.
  • Data Driven Testing: Running same test with 100 rows of data from CSV/Excel.
  • CLI Execution: Intro to Newman (Running tests from command line).

Expert Instructor

Kshitij Kohli

Kshitij Kohli

Senior QA Automation Lead

Kshitij doesn't just teach tools; he teaches frameworks. He has built automation frameworks from scratch for 3 US-based startups. In this course, he focuses on how APIs work under the hood, not just how to click 'Send' in Postman.

Don't just click buttons. Test the logic.

Upgrade your testing skills this weekend.

Join for ₹5,999 / $72

Student Success

Student

Vikram Singh

SDET at Startup

"I was manually testing APIs using Swagger UI. This course taught me how to automate checks in Postman. saved me hours every week."

Student

Sarah Jenkins

QA Analyst

"Postman was just a tool I used for 'send' and 'check'. Now I write test scripts, use collections, and run them via CLI. Huge upgrade!"

Student

Meera R.

Senior Tester

"The section on Chaining Requests deals with real-world scenarios. Authentication tokens, environmental variables... exactly what we use at work."

Frequently Asked Questions

Do I need to know coding?

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We start from scratch. You will learn basic JavaScript specifically for Postman. If you know logical operators (if/else), you are good to go.

Is Postman free?

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Yes, we use the free version of Postman which is sufficient for almost all testing needs.

Will we cover RestAssured?

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This specific crash course focuses on Postman. For RestAssured (Java), please check our Full Stack Automation course.