grpc

gRPC通过 HTTP2 协议传输

protobuf

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syntax = "proto3";
option go_package="./;api";

golang grpc

install protocol compiler plugins

在 https://pkg.go.dev/google.golang.org/protobuf/cmd/protoc-gen-go 可以看到最新的版本号

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go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.27.1
go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.1.0
# 安装后查看 版本
./protoc-gen-go --version
./protoc-gen-go-grpc --version

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protoc --go_out=. --go_opt=paths=source_relative \
    --go-grpc_out=. --go-grpc_opt=paths=source_relative \
    helloworld/helloworld.proto

  
protoc -I proto/ proto/helloworld.proto -go_out=plugins=grpc:proto

grpc-dump

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go install github.com/bradleyjkemp/grpc-tools/grpc-dump@latest
grpc-dump --port=12345
http_proxy=http://localhost:12345 my-app

wireshark grpc

https://mp.weixin.qq.com/s/BdcFRO58ytrtcpYZVT1ymQ

Wireshark>Edit->Preference->Protocols->Protobuf

analyze

Analyze>Decode As 在current列选择http2

streaming

gRPC 的流式，分为三种类型：

Server-side streaming RPC：服务器端流式 RPC Client-side streaming RPC：客户端流式 RPC Bidirectional streaming RPC：双向流式 RPC https://colobu.com/2017/04/06/dive-into-gRPC-streaming/
https://segmentfault.com/a/1190000016503114
https://github.com/bradleyjkemp/grpc-tools
https://grpc.io/docs/quickstart/go.html#prerequisites

http://www.blogjava.net/killme2008/archive/2010/01/20/310206.html

gRPC over HTTP2

https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md