Go gRPC 调试工具

在开发grpc的时候，Go gRPC 调试工具 可以说是必备工具。

安装：

go get github.com/fullstorydev/grpcui   
go install github.com/fullstorydev/grpcui/cmd/grpcui
grpcui -help #验证是否安装

准备grpc项目，如：

hello.proto 和main.go

syntax = "proto3";
option go_package = "./;proto";  
package protos;

service Greeter {
  rpc SayHello (HelloRequest) returns (HelloReply) ;
}
 
message HelloRequest {
  string name = 1;
}
 
message HelloReply {
  string message = 1;
}

package main

import (
    "context"
    "fmt"
    pb "grpcdemo/protos"
    "net"

    "github.com/kataras/iris/v12"
    "github.com/kataras/iris/v12/middleware/logger"
    "github.com/kataras/iris/v12/middleware/recover"
    "google.golang.org/grpc"
    "google.golang.org/grpc/reflection"
)

func main() {

    GPRCServer()

    // http
    app := iris.New()
    app.Use(recover.New())
    app.Use(logger.New())

    app.Handle("GET", "/", func(ctx iris.Context) {
        ctx.WriteString("pong")
    })
    app.Run(iris.Addr(":8080"))
}

func GPRCServer() {
    // 监听本地端口
    listener, err := net.Listen("tcp", ":9090")
    if err != nil {
        return
    }
    s := grpc.NewServer()                  // 创建GRPC
    pb.RegisterGreeterServer(s, &server{}) // 在GRPC服务端注册服务

    reflection.Register(s)
    fmt.Println("grpc serve 9090")
    err = s.Serve(listener)
    if err != nil {
        fmt.Println(fmt.Sprintf("failed to serve: %v", err))
    }

}

type server struct{}

func NewServer() *server {
    return &server{}
}

func (s *server) SayHello(ctx context.Context, in *pb.HelloRequest) (*pb.HelloReply, error) {
    msg := "Resuest By:" + in.Name + " Response By :" + LocalIp()
    fmt.Println("GRPC Send: ", msg)
    return &pb.HelloReply{Message: msg}, nil
}

func LocalIp() string {
    addrs, _ := net.InterfaceAddrs()
    var ip string = "localhost"
    for _, address := range addrs {
        if ipnet, ok := address.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
            if ipnet.IP.To4() != nil {
                ip = ipnet.IP.String()
            }
        }
    }
    return ip
}