warehost/lib/log/main.go

package log

import (
	"net/http"

	log "github.com/Sirupsen/logrus"
	"github.com/rifflock/lfshook"
)

// Log current logger
var Log *log.Logger

// ModulLog with current Log
type ModulLog struct {
	log *log.Entry
}

// NewSilenceLogger initial logger withou output
func NewSilenceLogger(path string) *log.Logger {
	Log = NewLogger(path)
	//Log.Out = nil
	return Log
}

// NewLogger initial logger
func NewLogger(path string) *log.Logger {
	if Log != nil {
		return Log
	}
	Log = log.New()
	//Log.Formatter = new(log.JSONFormatter)
	Log.Hooks.Add(lfshook.NewHook(lfshook.PathMap{
		log.WarnLevel:  path,
		log.ErrorLevel: path,
	}))
	return Log
}

// NewModulLog with modul field
func NewModulLog(modul string) *ModulLog {
	return &ModulLog{
		log: Log.WithFields(log.Fields{
			"modul": modul,
		}),
	}
}

// GetLog with api request ip in log
func (m *ModulLog) GetLog(r *http.Request, request string) *log.Entry {
	ip := r.Header.Get("X-Forwarded-For")
	if len(ip) <= 1 {
		ip = r.RemoteAddr
	}
	return m.log.WithFields(log.Fields{
		"remote":  ip,
		"request": request,
	})
}