From d3865bf4d1848dc430a9d6be2de0106114ae92c3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=94=D0=BC=D0=B8=D1=82=D1=80=D0=B8=D0=B9=20=D0=A1=D0=B0?=
 =?UTF-8?q?=D0=B5=D0=BD=D0=BA=D0=BE?= <saenkodmitriiol@gmail.com>
Date: Sat, 25 Oct 2025 14:23:46 +0300
Subject: [PATCH] try fix err with nil in body

---
 web/controller/inbound.go |  4 +---
 web/service/inbound.go    | 13 ++++++++++++-
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/web/controller/inbound.go b/web/controller/inbound.go
index 799830b8..e3477936 100644
--- a/web/controller/inbound.go
+++ b/web/controller/inbound.go
@@ -13,7 +13,6 @@ import (
 	"github.com/mhsanaei/3x-ui/v2/web/session"
 
 	"github.com/gin-gonic/gin"
-	"github.com/gin-gonic/gin/binding"
 )
 
 // InboundController handles HTTP requests related to Xray inbounds management.
@@ -123,8 +122,7 @@ func (a *InboundController) addInbound(c *gin.Context) {
 	c.Request.Body = io.NopCloser(bytes.NewBuffer(bodyBytes))
 
 	inbound := &model.Inbound{}
-	err := c.ShouldBindWith(inbound, binding.Form)
-	// err := c.ShouldBind(inbound)
+	err := c.ShouldBind(inbound)
 	if err != nil {
 		jsonMsg(c, I18nWeb(c, "somethingWentWrong"), err)
 		return
diff --git a/web/service/inbound.go b/web/service/inbound.go
index ec15ecbb..e319fab3 100644
--- a/web/service/inbound.go
+++ b/web/service/inbound.go
@@ -2460,7 +2460,18 @@ func (s *InboundService) syncWithSlaves(method string, path string, contentType
 						continue
 					}
 					for key, value := range tmp {
-						form.Set(key, fmt.Sprintf("%v", value))
+						if value == nil { // skip nil fields
+							continue
+						}
+
+						// if the field is a slice or a map, marshal it to JSON
+						switch vv := value.(type) {
+						case map[string]interface{}, []interface{}:
+							jsonVal, _ := json.Marshal(vv)
+							form.Set(key, string(jsonVal))
+						default:
+							form.Set(key, fmt.Sprintf("%v", value))
+						}
 					}
 				default:
 					logger.Warningf("Unsupported body type: %T for form encoding on server %s", v, server.Name)