LuTiao Programming

Sep 12, 2026 · Backend Development

Spring Boot 4.1 gRPC: Why I Swapped One REST Call and What It Revealed About Microservice Boundaries

The author migrates a high-frequency internal inventory query from REST to gRPC in Spring Boot 4.1, discovering that gRPC's contract-first approach, binary encoding, and explicit timeout handling improve interface governance for service-to-service RPC, while REST remains better for web-facing and low-frequency APIs.