feat: registry.

registry/zookeeper/service.go

@@ -0,0 +1,16 @@
+package zookeeper
+
+import (
+	"encoding/json"
+
+	"github.com/go-kratos/kratos/v2/registry"
+)
+
+func marshal(si *registry.ServiceInstance) ([]byte, error) {
+	return json.Marshal(si)
+}
+
+func unmarshal(data []byte) (si *registry.ServiceInstance, err error) {
+	err = json.Unmarshal(data, &si)
+	return
+}