Part 1
2 chapters
Why gRPC, and the Decision Lens
Decide whether gRPC fits an interaction and classify any call on five axes.
Chapter 1
From REST to RPC
The three paradigms behind a single call — REST, gRPC, GraphQL — and how a typed method travels from client stub to server skeleton.
Chapter 2
The gRPC decision framework
Five axes for classifying any call — RPC shape, sync vs. stream, deadline and budget, failure class, and concurrency model — the lens every later chapter applies in a Decision callout.