获取当前生效的appid

internal/handler/app/client_wechat.go

@@ -1,6 +1,8 @@
 package app
 
 import (
+	"strings"
+
 	"github.com/ArtisanCloud/PowerWeChat/v3/src/kernel"
 	"github.com/break/junhong_cmp_fiber/internal/model/dto"
 	wechatConfigSvc "github.com/break/junhong_cmp_fiber/internal/service/wechat_config"
@@ -76,3 +78,19 @@ func (h *ClientWechatHandler) GetJSSDKConfig(c *fiber.Ctx) error {
 		Signature: jssdkConfig.Signature,
 	})
 }
+
+// GetAppID 获取当前生效的公众号 AppID
+// GET /api/c/v1/wechat/appid
+func (h *ClientWechatHandler) GetAppID(c *fiber.Ctx) error {
+	wechatConfig, err := h.wechatConfigService.GetActiveConfig(c.UserContext())
+	if err != nil {
+		return err
+	}
+	if wechatConfig == nil || strings.TrimSpace(wechatConfig.OaAppID) == "" {
+		return errors.New(errors.CodeWechatConfigUnavailable)
+	}
+
+	return response.Success(c, &dto.WechatAppIDResponse{
+		AppID: wechatConfig.OaAppID,
+	})
+}

internal/model/dto/wechat_dto.go

@@ -68,3 +68,8 @@ type JSSDKConfigResponse struct {
 	NonceStr  string `json:"nonce_str" description:"随机字符串"`
 	Signature string `json:"signature" description:"签名（SHA1）"`
 }
+
+// WechatAppIDResponse 微信 AppID 响应
+type WechatAppIDResponse struct {
+	AppID string `json:"app_id" description:"当前生效的公众号 AppID"`
+}

internal/routes/personal.go

@@ -22,6 +22,15 @@ func RegisterPersonalCustomerRoutes(router fiber.Router, doc *openapi.Generator,
 	authBasePath := "/auth"
 
 	// === 公开路由（无需认证）===
+	Register(router, doc, basePath, "GET", "/wechat/appid", handlers.ClientWechat.GetAppID, RouteSpec{
+		Summary:     "获取当前生效的公众号 AppID",
+		Description: "用于 C 端免登录场景获取当前生效微信配置中的公众号 AppID，响应仅返回 app_id 字段",
+		Tags:        []string{"个人客户 - 微信"},
+		Auth:        false,
+		Input:       nil,
+		Output:      &dto.WechatAppIDResponse{},
+	})
+
 	Register(router, doc, basePath, "GET", "/wechat/jssdk-config", handlers.ClientWechat.GetJSSDKConfig, RouteSpec{
 		Summary:     "获取微信 JSSDK 签名配置",
 		Description: "前端调用 wx.config() 初始化微信 JS-SDK 时所需的签名参数，需传入当前页面完整 URL",