Designing Libri GmbH Designing REST APIs: Practical Patterns for Architecture and Implementation

Designing REST APIs: Practical Patterns for Architecture and Implementation is a practical guide to building APIs that are consistent, scalable, and easy to evolve. It introduces the core ideas behind REST, including stateless interactions, resource-oriented design, uniform interfaces, and HATEOAS, while explaining how these principles support loose coupling between clients and servers. The book also examines the Richardson Maturity Model and shows how thoughtful resource modeling, clear URI structure, and discoverable links lead to APIs that are intuitive to use and resilient over time.

Moving from theory to implementation, the book covers the essential details of HTTP and how to apply them effectively in modern API design. Readers will learn how to choose the right methods, handle partial updates, design strong error responses, support bulk operations, and plan for versioning without creating unnecessary complexity. It also explores security and governance concerns such as authentication, authorization, validation, transport protection, and abuse prevention, helping teams build APIs that are both safe and reliable in production.

Beyond the fundamentals, Designing REST APIs: Practical Patterns for Architecture and Implementation addresses how to deliver high-quality APIs in distributed, cloud, and edge environments. It includes practical guidance on observability, automated testing, performance tuning, and global deployment, as well as comparisons with alternative approaches such as gRPC and GraphQL. The book also looks at how RESTful patterns adapt to serverless systems, IoT, and emerging architectures, making it a useful reference for architects and developers who want to design APIs with clarity and confidence.