Foundations of API Testing

APIs are the backbone of modern software, but how can you ensure they are reliable and secure? This course provides the answer, teaching you how to systematically test the functionality and robustness of any web API. You will progress from understanding core API principles to confidently executing both manual and automated tests. By the end, you'll have the practical skills to design effective test cases, handle authentication, validate responses, and report your findings, making you a valuable contributor to any development team. What you'll learn: - Understand core API concepts like HTTP methods, status codes, and data formats like JSON. - Practice manual API testing using common client tools to construct requests and analyze responses. - Learn to work with different authentication and authorization schemes, including API keys and tokens. - Build simple automated test scripts to verify API endpoint functionality and data integrity. - Apply techniques for testing error handling, basic performance, and common security vulnerabilities. - Discover how API testing fits into modern development workflows like Continuous Integration (CI). The course begins with the fundamentals of how APIs work before guiding you through practical testing methods. You'll start with manual exploration and gradually build the skills to write your first automated checks through written exercises. This course is designed for absolute beginners. No prior experience in software testing or programming is required to get started. Begin your journey into API testing today.