Support sorting parameters

logs_web/controller/controller.go

@@ -9,24 +9,27 @@ import (
 
 // GetEvents handles the GET request to retrieve logs.
 func GetEvents(c *gin.Context) {
-	var filter map[string]interface{}
-	if err := c.ShouldBindJSON(&filter); err != nil {
+	var options struct {
+		Filter map[string]interface{} `json:"filter"`
+		Sort   map[string]int         `json:"sort"`
+	}
+	if err := c.ShouldBindJSON(&options); err != nil {
 		c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "Invalid JSON"})
 		return
 	}
 
 	h, err := db.NewDBHandler()
-  if err != nil {
-    c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"error": "Internal Server Error"})
-    return
-  }
+	if err != nil {
+		c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"error": "Internal Server Error"})
+		return
+	}
 	defer h.Close()
 
-	d, err := h.FindDemanded(filter)
-  if err != nil {
-    c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"error": "Internal Server Error"})
-    return
-  }
+	d, err := h.FindDemanded(options.Filter, options.Sort)
+	if err != nil {
+		c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"error": "Internal Server Error"})
+		return
+	}
 
 	c.JSON(http.StatusOK, d)
 }

logs_web/db/db.go

@@ -39,10 +39,14 @@ func (handler *DBHandler) Close() error {
 	return handler.client.Disconnect(context.TODO())
 }
 
-// FindDemanded retrieves logs based on the provided filter.
-func (handler *DBHandler) FindDemanded(filter map[string]interface{}) ([]entity.LogEntry, error) {
+// FindDemanded retrieves logs based on the provided filter and sorts them by the provided sort fields.
+func (handler *DBHandler) FindDemanded(filter map[string]interface{}, sortFields map[string]int) ([]entity.LogEntry, error) {
 	bsonFilter := bson.M(filter)
-	cursor, err := handler.collection.Find(context.TODO(), bsonFilter)
+	findOptions := options.Find().SetSort(bson.D{})
+	for field, order := range sortFields {
+		findOptions.Sort = append(findOptions.Sort.(bson.D), bson.E{Key: field, Value: order})
+	}
+	cursor, err := handler.collection.Find(context.TODO(), bsonFilter, findOptions)
 	if err != nil {
 		return nil, err
 	}

logs_web/openapi.yaml

@@ -29,6 +29,9 @@ paths:
                   "time": {
                     "$gte": "2025-01-17T00:00:00Z",
                     "$lte": "2025-01-31T23:59:59Z"
+                  },
+                  "sort": {
+                    "time": -1
                   }
                 }
       responses: