REST APIs Step by Step: A Practical Guide with Examples provides a comprehensive introduction to designing, building, and maintaining RESTful web APIs for real-world applications. Covering the essential principles of REST architecture, HTTP fundamentals, and data exchange formats, the book offers a structured approach to understanding the mechanics and rationale behind effective API development. Through concise explanations and illustrative examples, readers gain clarity on how core API components interact and why best practices matter.

The book proceeds through practical guidance on constructing robust REST APIs, including resource modeling, endpoint design, HTTP method usage, payload structuring, and versioning strategies. Dedicated sections address error handling, data validation, authentication, authorization, and rate limiting, delivering actionable solutions to common API challenges. Readers are also guided through the full implementation process with modern frameworks, real-world use cases, and recommendations for seamless integration with data sources.

Designed for software developers, system architects, and technical leads, this guide ensures that readers acquire a solid foundation in REST API development, regardless of prior experience. The book emphasizes not only the creation of functional APIs but also their long-term maintenance, security, scalability, and documentation. By following the step-by-step approach, readers will be equipped to deliver APIs that are reliable, efficient, and easy to use across diverse software ecosystems.