How to use protobuf in golang

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如何在 golang 中使用 protobuf

Installation

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go get google.golang.org/protobuf
go get google.golang.org/protobuf/cmd/protoc-gen-go

How to use

在 Golang 裡是沒有 enum 的功能，這時候用 protobuf 是個蠻好的解法。

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# bonus.proto
syntax = "proto3";
package bonus;
option go_package = "github.com/blackhorseya/red-packet/internal/pkg/entity/bonus";

enum Status {
  UNKNOWN = 1;
  ENABLED = 2;
  DISABLED = 3;
}

message Packet {
  string id = 1;
  int64 amount = 2;
}

透過 Makefile 去產生 code

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.PHONY: gen-pb
gen-pb:
	@protoc --go_out=plugins=grpc,paths=source_relative:. ./internal/pkg/entity/**/*.proto