fix: protocol v1

cmd/discover/main.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"os"
+
+	"forge.cadoles.com/cadoles/go-emlid/reach/discovery"
+	"github.com/pkg/errors"
+)
+
+func main() {
+	services, err := discovery.Watch(context.Background())
+	if err != nil {
+		fmt.Printf("[FATAL] %+v", errors.WithStack(err))
+		os.Exit(1)
+	}
+
+	for srv := range services {
+		data, err := json.MarshalIndent(struct {
+			Addr string `json:"addr"`
+			Name string `json:"name"`
+		}{
+			Name: srv.Name,
+			Addr: fmt.Sprintf("%s:%d", srv.AddrV4.String(), srv.Port),
+		}, "", "  ")
+		if err != nil {
+			fmt.Printf("[FATAL] %+v", errors.WithStack(err))
+			os.Exit(1)
+		}
+
+		fmt.Printf("%s\n", data)
+	}
+}