Logrus test

logrus.go

 1 package main
  2 
  3 import (
  4     "os"
  5 
  6     "github.com/sirupsen/logrus"
  7 )
  8 
  9 func main() {
 10     log := logrus.New()
 11     // set where we log
 12     log.SetOutput(os.Stdout)
 13     // set the levell
 14     log.SetLevel(logrus.TraceLevel)
 15 
 16     // simple thing logged
 17     log.Info("HELLO WORLD")
 18     log.Warn("Warning for the  WORLD")
 19 
 20     // more advanced
 21     clog := log.WithFields(logrus.Fields{"id": 129923213, "user": "John"})
 22     clog.Info("John entered the room")
 23 
 24     // add one more level
 25 
 26     moreContext := clog.WithFields(logrus.Fields{"money": 1000})
 27     moreContext.Error("John left the building")
 28 
 29     // you can change gloval formatter
 30     clog.Logger.SetFormatter(&logrus.JSONFormatter{})
 31 
 32     // and change context value
 33     moreContext = moreContext.WithField("user", "Jason")
 34     moreContext = moreContext.WithField("id", 1)
 35     moreContext.Error("John became a JASON")
 36 
 37 }   
~