Developing the Presentation Tier with Spring REST Controllers

Modern web applications rely on clean, reliable APIs to bridge the gap between user interfaces and backend data. Building this presentation tier requires a solid grasp of how HTTP requests map to backend logic and how to return predictable, structured responses. This course guides you through the foundational concepts of RESTful architecture and teaches you how to implement them practically using Spring. You will start by understanding the core principles of the presentation tier, HTTP methods, and status codes before moving on to hands-on configuration and code design. What you will learn: - Understand the architecture of the presentation tier and how Spring handles HTTP requests - Map HTTP GET, POST, PUT, and DELETE actions to controller methods - Handle incoming request parameters, path variables, and JSON payloads - Return structured JSON responses with appropriate HTTP status codes and headers - Integrate controllers with business logic and data services using dependency injection - Apply modern API practices including basic validation and clear error handling. This text-based guide is structured to take you from absolute beginner to confident API developer, starting with essential architectural theory and progressing to complete, maintainable controller implementations. This course is designed for beginner backend developers, web developers looking to understand API design, and anyone with basic Java knowledge who wants to build modern RESTful services. Start building clean, reliable APIs today.