Using gRPC + Protocol Buffers in Golang to Implement Efficient RPC Services Introduction With the popularity of microservice architecture, remote procedure calls (RPC) are becoming more and more important in modern applications. gRPC is a high-performance, open source, and general RPC framework developed by Google. It uses HTTP/2 as the transmission protocol and supports multiple languages, including Go. This article will introduce in detail how to use gRPC + Protocol Buffers in Golang.