The Complete API Handbook: A Story-Driven Guide to REST, GraphQL, gRPC, and System Architecture (C# & .NET Edition) (The Complete API Handbook Series) - Softcover

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Stop fighting spaghetti code. Learn to design, build, and scale resilient APIs from scratch using C# and ASP.NET Core Minimal APIs.

Many developers can spin up a quick controller endpoint, but few know how to engineer an entire API ecosystem that survives real-world production stress. In The Complete API Handbook (C# & .NET Edition), you won't just read dry theory or disconnected documentation. Instead, you will follow a hands-on, progressive narrative following Maya and Theo—two developers at a fast-growing food-delivery startup called Platter—as their chaotic monolith evolves into a distributed, high-performance backend.

Every chapter introduces a new milestone, shift in production load, or system crash that forces them to level up their architecture. You will sit right alongside them, learning the core principles behind every pattern in plain language before implementing clean, concise code using modern ASP.NET Core Minimal APIs.

What You Will Master Inside:

• Foundations & REST: Move from tangled monolithic logic to clean RESTful design, resource modeling, and proper HTTP status code handling.

• Data Flow & Pagination: Solve performance bottlenecks and prevent out-of-memory crashes using Offset, Keyset, and Cursor pagination.

• API Versioning & Contracts: Update APIs gracefully, maintain backward compatibility, and manage deprecation protocols without breaking mobile or third-party callers.

• Authentication & Security: Implement secure authentication flows, stateless JWT access/refresh token systems, and granular authorization.

• Traffic Control & Protection: Guard your infrastructure from overload using Fixed Window, Sliding Window, and Token Bucket rate-limiting algorithms.

• Legacy Integration & Performance: Handle legacy SOAP integrations, speed up responses with server-side caching, and eliminate mobile bandwidth bloat.

• Modern Paradigms: Expand beyond REST to build high-efficiency gRPC services, flexible GraphQL interfaces, and real-time WebSockets.

Whether you are a self-taught programmer, a frontend developer looking to understand backend architecture, or a .NET engineer aiming to refine your system design skills, this book bridges the gap between basic code examples and real-world API engineering.

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