API Test Automation with REST Assured and Java

Testing APIs manually is slow and error-prone in modern software development. Transitioning to automated API testing ensures your applications remain reliable and performant with every code change. This written course guides you through intermediate API test automation using REST Assured in Java. You will learn to construct robust test suites, validate complex payloads, and handle full CRUD operations with confidence. What you will learn: Understand foundational REST concepts and HTTP methods including GET, POST, PUT, DELETE, and PATCH; Build automated test scripts to validate API responses, status codes, and headers; Manage complex request and response payloads using modern Java serialization techniques like Jackson and Java Records; Implement schema validation to ensure data integrity across your API endpoints; Configure reusable test configurations and parameterization for cleaner test code. You will start with key API testing terminology and basic setup before moving step-by-step through practical test scenarios. The material progresses from simple requests to complex validation workflows, ensuring you develop a structured approach to automation. This course is designed for quality assurance engineers and developers who have a basic understanding of Java and want to specialize in API test automation. No advanced testing experience is required. Start reading today to elevate your automation skills and build reliable API tests.