logger

README

go-logger

How to use it

package main

import (
	"os"

	"github.com/deweppro/go-logger"
)

func main() {
	logger.SetOutput(os.Stdout)
	logger.SetLevel(logger.LevelDebug)

	logger.Infof("log %s", "info")
	logger.Warnf("log %s", "warn")
	logger.Errorf("log %s", "error")
	logger.Debugf("log %s", "debug")
	logger.WithFields(logger.Fields{"a": "b"}).Infof("with context")

	logger.Close()
}

Example log output:

{"time":1649896276,"lvl":"INF","msg":"log info"}
{"time":1649896276,"lvl":"WRN","msg":"log warn"}
{"time":1649896276,"lvl":"ERR","msg":"log error"}
{"time":1649896276,"lvl":"DBG","msg":"log debug"}
{"time":1649896276,"lvl":"INF","msg":"with context","ctx":{"a":"b"}}

...

Documentation

Index

• Constants
• func Close()
• func Debugf(format string, args ...interface{})
• func Errorf(format string, args ...interface{})
• func Fatalf(format string, args ...interface{})
• func GetLevel() uint32
• func Infof(format string, args ...interface{})
• func SetLevel(v uint32)
• func SetOutput(out io.Writer)
• func Warnf(format string, args ...interface{})
• type Fields
• type LogWriter
  • func WithFields(v Fields) LogWriter
• type Logger
  • func Default() Logger
  • func New() Logger
• type Sender

Constants

const (
	LevelError uint32
	LevelWarn
	LevelInfo
	LevelDebug
)

nolint: golint

Functions

func Close

func Close()

Close waiting for all messages to finish recording

func Debugf

func Debugf(format string, args ...interface{})

Debugf debug message

func Errorf

func Errorf(format string, args ...interface{})

Errorf error message

func Fatalf

func Fatalf(format string, args ...interface{})

Fatalf fatal message and exit

func GetLevel

func GetLevel() uint32

GetLevel getting log level

func Infof

func Infof(format string, args ...interface{})

Infof info message

func SetLevel

func SetLevel(v uint32)

SetLevel change log level

func SetOutput

func SetOutput(out io.Writer)

SetOutput change writer

func Warnf

func Warnf(format string, args ...interface{})

Warnf warning message

Types

type Fields

type Fields map[string]interface{}

type LogWriter

type LogWriter interface {
	Fatalf(format string, args ...interface{})
	Errorf(format string, args ...interface{})
	Warnf(format string, args ...interface{})
	Infof(format string, args ...interface{})
	Debugf(format string, args ...interface{})
}

LogWriter writer interface

func WithFields

func WithFields(v Fields) LogWriter

WithFields setter context to log message

type Logger

type Logger interface {
	SetOutput(out io.Writer)
	SetLevel(v uint32)
	GetLevel() uint32
	Close()

	WithFields(Fields) LogWriter
	LogWriter
}

Logger base interface

func Default

func Default() Logger

Default logger

func New

func New() Logger

New init new logger

type Sender

type Sender interface {
	PutEntity(v *entity)
	SendMessage(level uint32, call func(v *message))
	Close()
}