What is a RESTful API and How to Build One

RESTful APIs, as articulated in the guide, are web services designed around the principles of Representational State Transfer (REST), utilizing standard HTTP methods such as GET, POST, PUT, and DELETE to interact with resources identified by unique URIs. The guide emphasizes the importance of applying core REST principles to ensure consistency and maintainability, such as modeling resources as nouns, maintaining statelessness, and leveraging caching for scalability. It highlights the significance of predictable APIs through consistent URL patterns, standardized request/response structures, and stateless authentication using JWTs or OAuth 2.0. Best practices for production-ready APIs include implementing URL versioning, meaningful error responses, and performance optimizations like pagination. By following these principles and practices, developers can build scalable, resilient APIs that are both developer-friendly and operationally efficient.