log

Documentation

Index

• type Field
• type Level
• type Logger
  • func DefaultLogger(out io.Writer) Logger

Types

type Field

type Field struct {
	Name string
	Val  interface{}
}

type Level

type Level uint32

Level is a type of logs levels

const (
	// PanicLevel level, highest level of severity. Logs and then calls panic with the
	// message passed to Debug, Info, ...
	PanicLevel Level = iota
	// FatalLevel level. Logs and then calls `logger.Exit(1)`. It will exit even if the
	// logging level is set to Panic.
	FatalLevel
	// ErrorLevel level. Logs. Used for errors that should definitely be noted.
	// Commonly used for hooks to send errors to an error tracking service.
	ErrorLevel
	// WarnLevel level. Non-critical entries that deserve eyes.
	WarnLevel
	// InfoLevel level. General operational entries about what's going on inside the
	// application.
	InfoLevel
	// DebugLevel level. Usually only enabled when debugging. Very verbose logging.
	DebugLevel
	// TraceLevel level. Designates finer-grained informational events than the Debug.
	TraceLevel
)

type Logger

type Logger interface {
	Log(level Level, v ...interface{})
	Logf(level Level, format string, args ...interface{})
	WithFields(fields []Field) Logger
	SetLevel(level Level)
}

Logger interface allows to fit any logger pkg for usage in MessageBus

func DefaultLogger

func DefaultLogger(out io.Writer) Logger

DefaultLogger returns an implementation of logger for MessageBus, used by default if other isn't specified