API Testing Made Simple

This course is a practical, beginner-friendly introduction to API testing, designed for testers who want clarity without complexity. It starts from the basics—what an API is and how it behaves—and gradually builds confidence through real test cases covering methods, URLs, headers, bodies, responses, status codes, and authentication.

Every lesson focuses on how API testing actually feels in practice, not just theory. You will learn how to think like an API tester, identify meaningful test scenarios, validate responses, and report results using a simple, structured approach.

The course uses BusStop - API testing tool, to demonstrate execution, making API testing accessible even if you are not comfortable with coding.

api-rest-architecture

What is an API ?

This video explains what an API is in the simplest way possible. It shows how websites and mobile apps talk to a server, where the real logic lives, and why this setup exists.

You’ll clearly see how requests and responses work and why APIs are the right place to focus your testing. If you want a clear mental model before writing or executing any API test cases, start here.


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api-rest-architecture

API Authentication

This video explains API authentication in a clear, practical way. You’ll see what happens when a request reaches the server, how credentials are checked, and why responses change based on authentication.

Instead of theory, the lesson focuses on what testers actually observe—successful requests returning 200 and failed ones returning 401. It then shows the same flow in action using BusStop, so you can connect the concept directly to real API testing.


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