add registry base interface, mdns, noop implementations, add resolver, client

example/example.go

@@ -3,8 +3,11 @@ package main
 import (
 	"context"
 	"fmt"
-	"time"
 
+	"github.com/sirupsen/logrus"
+
+	"gitlab.bertha.cloud/partitio/lab/grpc/client"
+	"gitlab.bertha.cloud/partitio/lab/grpc/registry/mdns"
 	"gitlab.bertha.cloud/partitio/lab/grpc/service"
 )
 
@@ -28,21 +31,29 @@ func (g *GreeterHandler) SayHelloStream(req *HelloStreamRequest, s Greeter_SayHe
 }
 
 func main() {
-	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	name := "greeter"
+	ctx, cancel := context.WithCancel(context.Background())
+	done := make(chan struct{})
+	ready := make(chan struct{})
 	defer cancel()
 	var svc service.Service
 	var err error
 	svc, err = service.New(
 		service.WithContext(ctx),
-		service.WithName("Greeting"),
+		service.WithName(name),
+		service.WithVersion("v0.0.1"),
+		service.WithAddress("0.0.0.0:9991"),
+		service.WithRegistry(mdns.NewRegistry()),
 		service.WithReflection(true),
 		service.WithSecure(true),
 		service.WithAfterStart(func() error {
 			fmt.Println("Server listening on", svc.Options().Address())
+			close(ready)
 			return nil
 		}),
 		service.WithAfterStop(func() error {
 			fmt.Println("Stopping server")
+			close(done)
 			return nil
 		}),
 	)
@@ -50,7 +61,30 @@ func main() {
 		panic(err)
 	}
 	RegisterGreeterServer(svc.Server(), &GreeterHandler{})
-	if err := svc.Start(); err != nil {
-		panic(err)
+	go func() {
+		if err := svc.Start(); err != nil {
+			panic(err)
+		}
+	}()
+	<-ready
+	s, err := client.New(
+		client.WithRegistry(mdns.NewRegistry()),
+		client.WithSecure(true),
+	)
+	if err != nil {
+		logrus.Fatal(err)
 	}
+	conn, err := s.Dial("greeter","v0.0.1")
+	if err != nil {
+		logrus.Fatal(err)
+	}
+	g := NewGreeterClient(conn)
+	defer cancel()
+	res, err := g.SayHello(context.Background(), &HelloRequest{Name: "test"})
+	if err != nil {
+		logrus.Fatal(err)
+	}
+	logrus.Infof("received message: %s", res.Message)
+	cancel()
+	<-done
 }