fix: issues

internal/db_channel.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"strings"
 	"time"
 
 	"exporter/database/telegram_resource/public/model"
@@ -37,7 +38,7 @@ func NewDBChannel(uuid int64, username, title string) *DBChannel {
 }
 
 func (c *DBChannel) Asset(assetID int64, ext string) string {
-	assetFile := fmt.Sprintf("outputs/%d/%d.%s", c.UUID, assetID, ext)
+	assetFile := fmt.Sprintf("outputs/%d/%d.%s", c.UUID, assetID, strings.Trim(ext, "."))
 
 	// if file dir not exists then create it
 	if _, err := os.Stat(filepath.Dir(assetFile)); os.IsNotExist(err) {