Part 1
2 chapters
Foundations & the decision lens
Decide whether REST fits the interaction in front of you and name the constraint your design choice actually rests on.
Chapter 1
APIs & patterns
RPC versus Web APIs, the REST constraints, and resource-oriented architecture — the mental model the later chapters build on.
Chapter 2
The API decision framework
The criteria axes for choosing a pattern, style, and transport — the lens this book applies in a Decision callout at the end of every chapter.