add new statistic page

backend/utils/middleware.go

@@ -0,0 +1,28 @@
+package utils
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+func SetMiddlewareData(r *gin.Engine, key string, data any) {
+	//set logger for middleware
+	r.Use(func(c *gin.Context) {
+		c.Set(key, data)
+		c.Next()
+	})
+}
+
+func GetMiddlewareData(c *gin.Context, key string) (any, error) {
+	// Retrieve logger from Gin context
+	data, ok := c.Get("logger")
+	if !ok {
+		log.Fatal("middleware logger not set — use SetMiddlewareLogger first")
+		c.AbortWithStatusJSON(http.StatusInternalServerError, http.StatusInternalServerError)
+		return nil, fmt.Errorf("middleware key '%s'not set ", key)
+	}
+	return data, nil
+}