package utils import ( "fmt" "gopkg.in/natefinch/lumberjack.v2" "log" "time" ) type MyLogWriter struct { } func (writer MyLogWriter) Write(bytes []byte) (int, error) { return fmt.Print(time.Now().UTC().Format("2006-01-02T15:04:05.999Z") + string(bytes)) } func CloseLogger(logger *lumberjack.Logger) { err := logger.Close() if err != nil { log.Println(err) } else { log.Println("logger closed") } }