API Test Automation with REST Assured and IntelliJ IDEA

In modern software development, ensuring that application programming interfaces (APIs) work flawlessly is essential for delivering reliable applications. This text-based course guides you through the fundamentals of API automation testing using REST Assured and IntelliJ IDEA, taking you from absolute beginner to a confident test automation practitioner. You will transition from manual API testing to writing robust, automated scripts that validate endpoints, responses, and data structures. By understanding how to configure your development environment, structure test suites, and handle real-world API responses, you will be able to build structured test automation projects that easily align with modern development practices. What you'll learn: - Understand the core concepts of REST APIs, HTTP methods, status codes, and JSON/XML payloads. - Configure a modern Java testing project from scratch using IntelliJ IDEA and build tools like Maven. - Write automated HTTP requests (GET, POST, PUT, DELETE) and validate responses using REST Assured. - Apply modern assertion techniques with JUnit 5 to verify status codes, headers, and response bodies. - Implement data-driven testing patterns to run test logic with multiple data sets. - Validate complex JSON and XML schemas to ensure API payload integrity and contract compliance. The course begins with essential API terminology and the basics of setting up your coding environment in IntelliJ IDEA. From there, you will progress step-by-step through writing your first automated requests, handling dynamic payloads, and structuring your code for maximum maintainability. This course is designed specifically for beginners, manual QA engineers, and developers looking to transition into API test automation. No prior automation or programming experience is required, as we start from the absolute basics with clear explanations and written code examples. Start writing your first automated API tests today and elevate your quality assurance skills.