Handy API Extension Patterns
Handy API Extension Patterns
How to Evolve Message Formats Without Breaking Everything
About the Book
In this compact and practical guide, Mike Amundsen shares a proven design pattern for safely evolving API response payloads without triggering downstream failures. Starting with a clear look at strong, weak, and "mild" typing styles, the book introduces a resilient approach using structured extensions and runtime accessors that allow APIs to grow gracefully over time.
Whether you're maintaining legacy services or building future-facing systems, this book gives you the tools to design messages that are stable, flexible, and ready for change.
About the Author
Table of Contents
- Introduction
- But first…
- The type is strong with this one
- I can haz extensions?
- Take a walk on the mild side
- One ring to access them all
- One more thing…
- In conclusion …
- Recommended Reading & Foundations
- Type Systems & Theory
- API Design & Evolution
- JSON Schema & Validation
- JavaScript Patterns & Extensibility
- About the Author
- About the Signals Series
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