ids := []string{"1","2","3"}
filter := bson.M{"terminal_id": bson.M{"$in": ids}}
cursor, err := s.db.Collection(collectionTerminal).Find(ctx, filter)
if err != nil {
   return nil, err
}
defer cursor.Close(ctx)

var terminalList []*terminal.Terminal
for cursor.Next(ctx) {
   var term *terminal.Terminal
   err := cursor.Decode(&term)
   if err != nil {
      fmt.Println(err)
      return nil, err
   }
   terminalList = append(terminalList, term)
}
// in terminalList: [{"id":"2"}, {"id":"3"}]
// must be: [{"id":"1"}, {"id":"2"}, {"id":"3"}]