logger

Documentation

Index

• Variables
• type Level
• type Logger

Variables

var (
	Nop = nopLogger{}
)

Types

type Level

type Level int8

A Level is a logging priority. Higher levels are more important.

const (
	// DebugLevel logs are typically voluminous, and are usually disabled in
	// production.
	DebugLevel Level = iota - 1
	// InfoLevel is the default logging priority.
	InfoLevel
	// WarnLevel logs are more important than Info, but don't need individual
	// human review.
	WarnLevel
	// ErrorLevel logs are high-priority. If an application is running smoothly,
	// it shouldn't generate any error-level logs.
	ErrorLevel
	// FatalLevel logs a message, then calls os.Exit(1).
	FatalLevel
)

type Logger

type Logger interface {
	SetLevel(level Level)                     // set log level
	With(keysAndValues ...interface{}) Logger // log with fields
	Trace(ctx context.Context) Logger         // log with requestId, uid, bizId and spanId
	Debug(args ...interface{})
	Debugf(template string, args ...interface{})
	Debugw(msg string, keysAndValues ...interface{})
	Info(args ...interface{})
	Infof(template string, args ...interface{})
	Infow(msg string, keysAndValues ...interface{})
	Warn(args ...interface{})
	Warnf(template string, args ...interface{})
	Warnw(msg string, keysAndValues ...interface{})
	Error(args ...interface{})
	Errorf(template string, args ...interface{})
	Errorw(msg string, keysAndValues ...interface{})
	Fatal(args ...interface{})
	Fatalf(template string, args ...interface{})
	Fatalw(msg string, keysAndValues ...interface{})
}