protobuf

库中用到的protobuf定义及生成文件

quick start

• go get github.com/hopeio/protobuf@main
• go run $(go list -m -f {{.Dir}} github.com/hopeio/protobuf)/tools/install_tools.go
• protogen go -p $proto_path -g $proto_output_path

use docker

docker run --rm -v $project_path:/work jybl/protogen protogen go --proto=$proto_path --genpath=$proto_output_path

template

user.proto

syntax = "proto3";
package user;
import "hopeio/utils/enum/enum.proto";
import "hopeio/utils/patch/go.proto";
import "protoc-gen-openapiv2/options/annotations.proto";
import "hopeio/utils/validator/validator.proto";
import "google/api/annotations.proto";
import "hopeio/utils/response/response.proto";
import "hopeio/utils/request/param.proto";
import "danielvladco/protobuf/graphql.proto";
import "hopeio/utils/oauth/oauth.proto";
import "google/protobuf/wrappers.proto";

option java_package = "protobuf.user";
option go_package = "protobuf/user";
option (enum.gqlgen_all) = true;
option (enum.prefix_all) = false;
option (go.file) = {no_enum_prefix:true};
option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_swagger) = {
  info: {
    version: "1.0"
  }
};
// 用户
message User {
  uint64 id = 1 [(go.field) = {tags:'gorm:"primaryKey;"'}];
  string name = 2 [(go.field) = {tags:'gorm:"size:10;not null" comment:"昵称"'}];
    // 性别，0未填写，1男，2女
  Gender gender = 8 [(go.field) = {tags:'gorm:"type:int2;default:0"'}, (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_field) = {
    type:INTEGER
  }];
}

// 用户性别
enum Gender{
  option (go.enum) = {stringer_name: 'OrigString'};
  GenderPlaceholder = 0 [(enum.enumvalue_cn)= "占位"];
  GenderUnfilled = 1 [(enum.enumvalue_cn)= "未填"];
  GenderMale = 2 [(enum.enumvalue_cn)= "男"];
  GenderFemale = 3 [(enum.enumvalue_cn)= "女"];
}

service UserService {

  option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_tag) = {
    description: "用户相关接口"
  };
  //获取用户信息
  rpc Info (request.Id) returns (User) {
    option (google.api.http) = {
      get: "/api/v1/user/{id}"
    };
    option (grpc.gateway.protoc_gen_openapiv2.options.openapiv2_operation) = {
      tags:["用户相关接口", "v1.0.0"]
      summary : "获取用户信息"
      description : "根据Id获取用户信息接口"
    };
    option (danielvladco.protobuf.graphql.rpc) = {type: QUERY};
  }

}

contribute

生成库protobuf代码

go run protobuf/generate.go

tools

本项目需要用到的protobuf插件，go run tools/install_tools.go 或 tools/install-tools.sh，会自动安装

• protogen为go语言写的protobuf生成程序
  • go/dart 生成go/dart文件，E.g: protogen go -p xxx -g xxx
  • -p proto dir
  • -g generate dir
  • (-d) 指定cherry proto dir,如项目引用本项目或使用jybl/protogen image 可省略
  • -e 是否使用enum扩展插件
  • -w 是否使用grpc-gateway插件
  • -v 是否使用validators插件
  • -q 是否使用graphql插件
  • --patch 是否使用原生protopatch
• protoc-go-patch 支持通过ast重新生成自定义结构体tag,生成结构体方法等功能
• protoc-gen-grpc-gin github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-grpc-gateway的gin版本，支持生成http路由代理转发到grpc sercvice中
• protoc-gin-enum 分为错误enum及普通enum，生成性能更高支持中文的String(),错误enum会额外生成Error()string，支持生成枚举的辅助方法,错误enum会额外生成Error()string
• protoc-gen-validator 用于生成请求的校验的代码
• 集成github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-openapiv2 用于生成swagger文档
• 集成github.com/danielvladco/go-proto-gql 用于生成graphql schema 及 grahpql服务

build docker image

`$protobuf_dir/tools/docker/docker_build_local.sh $GOPATH $PROTOC $Image`

upgrade go

docker build -t jybl/protogen -f $protobuf_dir/tools/docker/Dockerfile_upgrade .