diff --git a/model/notification.go b/model/notification.go
index c6e1678..514d4d8 100644
--- a/model/notification.go
+++ b/model/notification.go
@@ -70,7 +70,7 @@ func (ns *NotificationServerBundle) reqBody(message string) (string, error) {
 			return string(msgBytes)[1 : len(msgBytes)-1]
 		}), nil
 	case NotificationRequestTypeForm:
-		data, err := utils.GjsonParseStringMap(n.RequestBody)
+		data, err := utils.GjsonIter(n.RequestBody)
 		if err != nil {
 			return "", err
 		}
@@ -98,7 +98,7 @@ func (n *Notification) setRequestHeader(req *http.Request) error {
 	if n.RequestHeader == "" {
 		return nil
 	}
-	m, err := utils.GjsonParseStringMap(n.RequestHeader)
+	m, err := utils.GjsonIter(n.RequestHeader)
 	if err != nil {
 		return err
 	}
diff --git a/pkg/ddns/webhook/webhook.go b/pkg/ddns/webhook/webhook.go
index b74d434..af99ab6 100644
--- a/pkg/ddns/webhook/webhook.go
+++ b/pkg/ddns/webhook/webhook.go
@@ -77,7 +77,7 @@ func (provider *Provider) prepareRequest(ctx context.Context) (*http.Request, er
 		return nil, err
 	}
 
-	headers, err := utils.GjsonParseStringMap(
+	headers, err := utils.GjsonIter(
 		provider.formatWebhookString(provider.DDNSProfile.WebhookHeaders))
 	if err != nil {
 		return nil, err
@@ -139,7 +139,7 @@ func (provider *Provider) reqBody() (string, error) {
 	case requestTypeJSON:
 		return provider.formatWebhookString(provider.DDNSProfile.WebhookRequestBody), nil
 	case requestTypeForm:
-		data, err := utils.GjsonParseStringMap(provider.DDNSProfile.WebhookRequestBody)
+		data, err := utils.GjsonIter(provider.DDNSProfile.WebhookRequestBody)
 		if err != nil {
 			return "", err
 		}
diff --git a/pkg/utils/gjson.go b/pkg/utils/gjson.go
index 0063681..6059442 100644
--- a/pkg/utils/gjson.go
+++ b/pkg/utils/gjson.go
@@ -2,6 +2,7 @@ package utils
 
 import (
 	"errors"
+	"iter"
 
 	"github.com/tidwall/gjson"
 )
@@ -20,21 +21,19 @@ func GjsonGet(json []byte, path string) (gjson.Result, error) {
 	return result, nil
 }
 
-func GjsonParseStringMap(jsonObject string) (map[string]string, error) {
-	if jsonObject == "" {
+func GjsonIter(json string) (iter.Seq2[string, string], error) {
+	if json == "" {
 		return nil, nil
 	}
 
-	result := gjson.Parse(jsonObject)
+	result := gjson.Parse(json)
 	if !result.IsObject() {
 		return nil, ErrGjsonWrongType
 	}
 
-	ret := make(map[string]string)
-	result.ForEach(func(key, value gjson.Result) bool {
-		ret[key.String()] = value.String()
-		return true
-	})
-
-	return ret, nil
+	return func(yield func(string, string) bool) {
+		result.ForEach(func(k, v gjson.Result) bool {
+			return yield(k.String(), v.String())
+		})
+	}, nil
 }