logger

const (
	InfoLevel   Level = zap.InfoLevel   // 0, default level
	WarnLevel   Level = zap.WarnLevel   // 1
	ErrorLevel  Level = zap.ErrorLevel  // 2
	DPanicLevel Level = zap.DPanicLevel // 3, used in development log
	// PanicLevel logs a message, then panics
	PanicLevel Level = zap.PanicLevel // 4
	// FatalLevel logs a message, then calls os.Exit(1).
	FatalLevel Level = zap.FatalLevel // 5
	DebugLevel Level = zap.DebugLevel // -1
)