This article is a treasure trove of knowledge for anyone working with REST APIs. It covers essential concepts, best practices, and actionable tips that are crucial for building secure, efficient, and user-friendly APIs. From explaining idempotency and HTTP status codes to emphasizing security with measures like input validation, rate limiting, and JWT, it offers a well-rounded guide. The focus on performance optimization and testing strategies further highlights the importance of scalability and reliability. A fantastic resource for both beginners and seasoned developers—clear, practical, and insightful!