API Testing with Postman: Manual and Automation Fundamentals

In modern software development, APIs are the backbone connecting different systems and services. Understanding how to thoroughly test these interfaces is an essential skill for any QA engineer, developer, or tech professional. This course guides you from the absolute basics of REST APIs to writing automated test suites using Postman. You will build the confidence to validate API responses, handle dynamic data, and integrate automated checks into your testing workflow. What you'll learn: - Understand core API concepts, HTTP methods, status codes, and JSON payloads. - Perform manual API testing by crafting requests and inspecting responses in Postman. - Manage dynamic environment variables and handle modern authentication flows like Bearer tokens. - Write automated assertion scripts using JavaScript within Postman to validate response data. - Design realistic test scenarios based on user stories and mock real-world project requirements. - Validate API schemas to ensure data integrity and structural consistency. The course starts with essential theoretical concepts and terminology before transitioning into manual testing workflows. You will then progress to advanced Postman features, scripting automation, and practicing with realistic testing scenarios through written explanations and code examples. This text-only course is designed for absolute beginners in QA and software testing, as well as developers looking to solidify their API testing skills. No prior programming or testing experience is required. Start reading today to build your foundational API testing skills and advance your QA career.