add filters for each table

backend/utils/database_filters.go

@@ -0,0 +1,21 @@
+package utils
+
+import (
+	"net/url"
+)
+
+func GenerateWhereFilter(filters []string, queryParams url.Values) (map[string]interface{}, error) {
+	whereClause := make(map[string]interface{})
+
+	for _, filter := range filters {
+		if queryParams.Get(filter) != "" {
+			var err error
+			whereClause[filter] = queryParams.Get(filter)
+			if err != nil {
+				return nil, err
+			}
+		}
+	}
+
+	return whereClause, nil
+}