diff --git a/metadata/util/util.go b/metadata/util/util.go
index 2e73df2..9d61fee 100644
--- a/metadata/util/util.go
+++ b/metadata/util/util.go
@@ -8,154 +8,209 @@ import (
 	"github.com/go-gost/core/metadata"
 )
 
-func GetBool(md metadata.Metadata, key string) (v bool) {
-	if md == nil || !md.IsExists(key) {
-		return
-	}
-	switch vv := md.Get(key).(type) {
-	case bool:
-		return vv
-	case int:
-		return vv != 0
-	case string:
-		v, _ = strconv.ParseBool(vv)
-		return
-	}
-	return
-}
-
-func GetInt(md metadata.Metadata, key string) (v int) {
-	if md == nil || !md.IsExists(key) {
+func GetBool(md metadata.Metadata, keys ...string) (v bool) {
+	if md == nil {
 		return
 	}
 
-	switch vv := md.Get(key).(type) {
-	case bool:
-		if vv {
-			v = 1
+	for _, key := range keys {
+		if !md.IsExists(key) {
+			continue
 		}
-	case int:
-		return vv
-	case string:
-		v, _ = strconv.Atoi(vv)
-		return
-	}
-	return
-}
-
-func GetFloat(md metadata.Metadata, key string) (v float64) {
-	if md == nil || !md.IsExists(key) {
-		return
-	}
-
-	switch vv := md.Get(key).(type) {
-	case float64:
-		return vv
-	case int:
-		return float64(vv)
-	case string:
-		v, _ = strconv.ParseFloat(vv, 64)
-		return
-	}
-	return
-}
-
-func GetDuration(md metadata.Metadata, key string) (v time.Duration) {
-	if md == nil || !md.IsExists(key) {
-		return
-	}
-
-	switch vv := md.Get(key).(type) {
-	case int:
-		return time.Duration(vv) * time.Second
-	case string:
-		v, _ = time.ParseDuration(vv)
-		if v == 0 {
-			n, _ := strconv.Atoi(vv)
-			v = time.Duration(n) * time.Second
+		switch vv := md.Get(key).(type) {
+		case bool:
+			v = vv
+		case int:
+			v = vv != 0
+		case string:
+			v, _ = strconv.ParseBool(vv)
 		}
-	}
-	return
-}
-
-func GetString(md metadata.Metadata, key string) (v string) {
-	if md == nil || !md.IsExists(key) {
-		return
-	}
-
-	switch vv := md.Get(key).(type) {
-	case string:
-		v = vv
-	case int:
-		v = strconv.FormatInt(int64(vv), 10)
-	case int64:
-		v = strconv.FormatInt(vv, 10)
-	case uint:
-		v = strconv.FormatUint(uint64(vv), 10)
-	case uint64:
-		v = strconv.FormatUint(uint64(vv), 10)
-	case bool:
-		v = strconv.FormatBool(vv)
-	case float32:
-		v = strconv.FormatFloat(float64(vv), 'f', -1, 32)
-	case float64:
-		v = strconv.FormatFloat(float64(vv), 'f', -1, 64)
+		break
 	}
 
 	return
 }
 
-func GetStrings(md metadata.Metadata, key string) (ss []string) {
-	if md == nil || !md.IsExists(key) {
+func GetInt(md metadata.Metadata, keys ...string) (v int) {
+	if md == nil {
 		return
 	}
 
-	switch v := md.Get(key).(type) {
-	case []string:
-		ss = v
-	case []any:
-		for _, vv := range v {
-			if s, ok := vv.(string); ok {
-				ss = append(ss, s)
+	for _, key := range keys {
+		if !md.IsExists(key) {
+			continue
+		}
+		switch vv := md.Get(key).(type) {
+		case bool:
+			if vv {
+				v = 1
+			}
+		case int:
+			v = vv
+		case string:
+			v, _ = strconv.Atoi(vv)
+		}
+		break
+	}
+
+	return
+}
+
+func GetFloat(md metadata.Metadata, keys ...string) (v float64) {
+	if md == nil {
+		return
+	}
+
+	for _, key := range keys {
+		if !md.IsExists(key) {
+			continue
+		}
+
+		switch vv := md.Get(key).(type) {
+		case float64:
+			v = vv
+		case int:
+			v = float64(vv)
+		case string:
+			v, _ = strconv.ParseFloat(vv, 64)
+		}
+		break
+	}
+	return
+}
+
+func GetDuration(md metadata.Metadata, keys ...string) (v time.Duration) {
+	if md == nil {
+		return
+	}
+
+	for _, key := range keys {
+		if !md.IsExists(key) {
+			continue
+		}
+
+		switch vv := md.Get(key).(type) {
+		case int:
+			v = time.Duration(vv) * time.Second
+		case string:
+			v, _ = time.ParseDuration(vv)
+			if v == 0 {
+				n, _ := strconv.Atoi(vv)
+				v = time.Duration(n) * time.Second
 			}
 		}
+		break
 	}
 	return
 }
 
-func GetStringMap(md metadata.Metadata, key string) (m map[string]any) {
-	if md == nil || !md.IsExists(key) {
+func GetString(md metadata.Metadata, keys ...string) (v string) {
+	if md == nil {
 		return
 	}
 
-	switch vv := md.Get(key).(type) {
-	case map[string]any:
-		return vv
-	case map[any]any:
-		m = make(map[string]any)
-		for k, v := range vv {
-			m[fmt.Sprintf("%v", k)] = v
+	for _, key := range keys {
+		if !md.IsExists(key) {
+			continue
 		}
+
+		switch vv := md.Get(key).(type) {
+		case string:
+			v = vv
+		case int:
+			v = strconv.FormatInt(int64(vv), 10)
+		case int64:
+			v = strconv.FormatInt(vv, 10)
+		case uint:
+			v = strconv.FormatUint(uint64(vv), 10)
+		case uint64:
+			v = strconv.FormatUint(uint64(vv), 10)
+		case bool:
+			v = strconv.FormatBool(vv)
+		case float32:
+			v = strconv.FormatFloat(float64(vv), 'f', -1, 32)
+		case float64:
+			v = strconv.FormatFloat(float64(vv), 'f', -1, 64)
+		}
+		break
 	}
+
 	return
 }
 
-func GetStringMapString(md metadata.Metadata, key string) (m map[string]string) {
-	if md == nil || !md.IsExists(key) {
+func GetStrings(md metadata.Metadata, keys ...string) (ss []string) {
+	if md == nil {
 		return
 	}
 
-	switch vv := md.Get(key).(type) {
-	case map[string]any:
-		m = make(map[string]string)
-		for k, v := range vv {
-			m[k] = fmt.Sprintf("%v", v)
+	for _, key := range keys {
+		if !md.IsExists(key) {
+			continue
 		}
-	case map[any]any:
-		m = make(map[string]string)
-		for k, v := range vv {
-			m[fmt.Sprintf("%v", k)] = fmt.Sprintf("%v", v)
+
+		switch v := md.Get(key).(type) {
+		case []string:
+			ss = v
+		case []any:
+			for _, vv := range v {
+				if s, ok := vv.(string); ok {
+					ss = append(ss, s)
+				}
+			}
 		}
+		break
 	}
 	return
 }
+
+func GetStringMap(md metadata.Metadata, keys ...string) (m map[string]any) {
+	if md == nil {
+		return
+	}
+
+	for _, key := range keys {
+		if !md.IsExists(key) {
+			continue
+		}
+
+		switch vv := md.Get(key).(type) {
+		case map[string]any:
+			m = vv
+		case map[any]any:
+			m = make(map[string]any)
+			for k, v := range vv {
+				m[fmt.Sprintf("%v", k)] = v
+			}
+		}
+		break
+	}
+	return
+}
+
+func GetStringMapString(md metadata.Metadata, keys ...string) (m map[string]string) {
+	if md == nil {
+		return
+	}
+
+	for _, key := range keys {
+		if !md.IsExists(key) {
+			continue
+		}
+
+		switch vv := md.Get(key).(type) {
+		case map[string]any:
+			m = make(map[string]string)
+			for k, v := range vv {
+				m[k] = fmt.Sprintf("%v", v)
+			}
+		case map[any]any:
+			m = make(map[string]string)
+			for k, v := range vv {
+				m[fmt.Sprintf("%v", k)] = fmt.Sprintf("%v", v)
+			}
+		}
+		break
+	}
+
+	return
+}