Add history record struct and collect timestamps for query history

history.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"time"
+)
+
+type HistoryRecord struct {
+	Query     string `json:"query"`
+	Timestamp string `json:"timestamp"`
+}
+
+func NewHistory() []HistoryRecord {
+	return make([]HistoryRecord, 0)
+}
+
+func NewHistoryRecord(query string) HistoryRecord {
+	return HistoryRecord{
+		Query:     query,
+		Timestamp: time.Now().String(),
+	}
+}