Almost there

database.go

@@ -2,9 +2,8 @@ package main
 
 import (
 	"database/sql"
-	_ "github.com/Freeaqingme/golang-sql-driver-mysql"
 	"fmt"
-	"time"
+	_ "github.com/Freeaqingme/golang-sql-driver-mysql"
 )
 
 var ClimateDb *sql.DB
@@ -67,7 +66,7 @@ func getLastSnapshotRecordFromDb() (*SnapshotRecord, error) {
 	return &snapshotRecord, nil
 }
 
-func getSnapshotRecordsFromDb(dateSince time.Time) ([]*SnapshotRecord, error) {
+func getSnapshotRecordsFromDb(dateSince string) ([]*SnapshotRecord, error) {
 	snapshots := make([]*SnapshotRecord, 0)
 	query := "SELECT `%s`, `%s`, `%s`, `%s`, `%s` FROM `snapshots` WHERE `%s` > %s ORDER BY `id` DESC;"
 	rows, err := ClimateDb.Query(fmt.Sprintf(query, "id", "temp", "humidity", "co2", "time", "time", dateSince))