kratos/examples/registry/discovery/server/main.go

package main

import (
	"context"
	"fmt"
	"os"

	"github.com/go-kratos/kratos/contrib/registry/discovery/v2"
	"github.com/go-kratos/kratos/examples/helloworld/helloworld"
	"github.com/go-kratos/kratos/v2"
	"github.com/go-kratos/kratos/v2/log"
	"github.com/go-kratos/kratos/v2/middleware/logging"
	"github.com/go-kratos/kratos/v2/middleware/recovery"
	"github.com/go-kratos/kratos/v2/transport/grpc"
	"github.com/go-kratos/kratos/v2/transport/http"
)

// server is used to implement helloworld.GreeterServer.
type server struct {
	helloworld.UnimplementedGreeterServer
}

// SayHello implements helloworld.GreeterServer
func (s *server) SayHello(ctx context.Context, in *helloworld.HelloRequest) (*helloworld.HelloReply, error) {
	return &helloworld.HelloReply{Message: fmt.Sprintf("Welcome %+v!", in.Name)}, nil
}

func main() {
	logger := log.NewStdLogger(os.Stdout)
	logger = log.With(logger, "service", "example.registry.discovery")

	r := discovery.New(&discovery.Config{
		Nodes:  []string{"0.0.0.0:7171"},
		Env:    "dev",
		Region: "sh1",
		Zone:   "zone1",
		Host:   "localhost",
	}, logger)

	httpSrv := http.NewServer(
		http.Address(":8000"),
		http.Middleware(
			recovery.Recovery(),
		),
	)
	grpcSrv := grpc.NewServer(
		grpc.Address(":9000"),
		grpc.Middleware(
			recovery.Recovery(),
			logging.Server(logger),
		),
	)

	s := &server{}
	helloworld.RegisterGreeterServer(grpcSrv, s)
	helloworld.RegisterGreeterHTTPServer(httpSrv, s)

	app := kratos.New(
		kratos.Name("helloworld"),
		kratos.Server(
			httpSrv,
			grpcSrv,
		),
		kratos.Metadata(map[string]string{"color": "gray"}),
		kratos.Registrar(r),
	)
	if err := app.Run(); err != nil {
		log.NewHelper(logger).Fatal(err)
	}
}