Function main

examples/features/observability/client/main.go:44–71

()

)

func main() {
	// Turn on global telemetry for the whole binary. If a configuration is
	// specified, any created gRPC Client Conn's or Servers will emit telemetry
	// data according the configuration.
	ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
	defer cancel()
	err := observability.Start(ctx)
	if err != nil {
		log.Fatalf("observability.Start() failed: %v", err)
	}
	defer observability.End()

	flag.Parse()
	// Set up a connection to the server.
	conn, err := grpc.NewClient(*addr, grpc.WithTransportCredentials(insecure.NewCredentials()))
	if err != nil {
		log.Fatalf("did not connect: %v", err)
	}
	defer conn.Close()
	c := pb.NewGreeterClient(conn)

	// Contact the server and print out its response.
	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: *name})
	if err != nil {
		log.Fatalf("could not greet: %v", err)
	}
	log.Printf("Greeting: %s", r.GetMessage())
}