更新

internal/api/common_handler.go

@@ -0,0 +1,20 @@
+package api
+
+import (
+	"github.com/gin-gonic/gin"
+	"level_go/internal/service"
+	"net/http"
+)
+
+type CommonHandler struct {
+	Service *service.CommonService
+}
+
+func (h *CommonHandler) GetTradeCalendar(c *gin.Context) {
+	resp, err := h.Service.GetTradeCalendar()
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusOK, resp)
+}