API Testing and Development with Postman

In today's software development landscape, understanding how to interact with and test APIs is an essential skill for developers and QA engineers alike. This text-based course provides a clear, step-by-step introduction to mastering Postman for modern API workflows. You will transition from manual API testing to designing automated test suites and mock servers. By reading through practical explanations and structured written exercises, you will build the confidence to integrate API testing into your daily development cycle. What you'll learn: Understand foundational API concepts, HTTP methods, status codes, and request headers; Create and organize API requests into collections for streamlined testing; Write automated test scripts to validate API responses and status codes; Configure environment and global variables to manage dynamic data across different environments; Design mock servers to simulate API endpoints before backend implementation is complete; Run collection tests automatically using the command-line interface. This course begins with the absolute fundamentals of web services and HTTP before walking you through the Postman interface, request creation, scripting, and automation. You will progress naturally from single requests to fully automated testing workflows. Designed for absolute beginners, manual testers, and junior developers, this course requires no prior programming or testing experience. Start reading today to unlock the power of automated API testing and development.