nplog

type Fields map[string]interface{}

type LogLevel string

type Logger interface {
	Debugf(msg string, args ...interface{})
	Infof(msg string, args ...interface{})
	Errorf(msg string, args ...interface{})
	Fatalf(msg string, args ...interface{})
	With(fields Fields) Logger
	For(ctx context.Context) Logger
}

type LoggerErr string

type LoggerInstance int

type Options struct {

	// EnableConsole determines if console log is enable
	EnableConsole bool

	// ConsoleJSONFormat determines if log should be printed in JSON format to console
	ConsoleJSONFormat bool

	// ConsoleLevel is log level printed to console, default to INFO
	ConsoleLevel LogLevel

	// EnableFile determines if log to file is enable
	EnableFile bool

	// Filename is the file to write logs to.  Backup log files will be retained
	// in the same directory.  It uses <processname>-lumberjack.log in
	// os.TempDir() if empty.
	Filename string

	// FileJSONFormat determines if log should be printed to file in JSON format
	FileJSONFormat bool

	// FileMaxSize is the maximum size in megabytes of the log file before it gets
	// rotated. It defaults to 100 megabytes.
	FileMaxSize int

	// FileMaxBackups is the maximum number of old log files to retain.  The default
	// is to retain all old log files (though MaxAge may still cause them to get
	// deleted.)
	FileMaxBackups int

	// FileMaxAge is the maximum number of days to retain old log files based on the
	// timestamp encoded in their filename.  Note that a day is defined as 24
	// hours and may not exactly correspond to calendar days due to daylight
	// savings, leap seconds, etc. The default is not to remove old log files
	// based on age.
	FileMaxAge int

	// FileCompress determines if the rotated log files should be compressed
	// using gzip. The default is not to perform compression.
	FileCompress bool

	// FileLevel is log level of file
	FileLevel LogLevel
}