vendor/github.com/Sirupsen/logrus/examples/basic/basic.go

   1 package main
   2
   3 import (
   4         "github.com/Sirupsen/logrus"
   5         // "os"
   6 )
   7
   8 var log = logrus.New()
   9
  10 func init() {
  11         log.Formatter = new(logrus.JSONFormatter)
  12         log.Formatter = new(logrus.TextFormatter) // default
  13
  14         // file, err := os.OpenFile("logrus.log", os.O_CREATE|os.O_WRONLY, 0666)
  15         // if err == nil {
  16         //      log.Out = file
  17         // } else {
  18         //      log.Info("Failed to log to file, using default stderr")
  19         // }
  20
  21         log.Level = logrus.DebugLevel
  22 }
  23
  24 func main() {
  25         defer func() {
  26                 err := recover()
  27                 if err != nil {
  28                         log.WithFields(logrus.Fields{
  29                                 "omg":    true,
  30                                 "err":    err,
  31                                 "number": 100,
  32                         }).Fatal("The ice breaks!")
  33                 }
  34         }()
  35
  36         log.WithFields(logrus.Fields{
  37                 "animal": "walrus",
  38                 "number": 8,
  39         }).Debug("Started observing beach")
  40
  41         log.WithFields(logrus.Fields{
  42                 "animal": "walrus",
  43                 "size":   10,
  44         }).Info("A group of walrus emerges from the ocean")
  45
  46         log.WithFields(logrus.Fields{
  47                 "omg":    true,
  48                 "number": 122,
  49         }).Warn("The group's number increased tremendously!")
  50
  51         log.WithFields(logrus.Fields{
  52                 "temperature": -4,
  53         }).Debug("Temperature changes")
  54
  55         log.WithFields(logrus.Fields{
  56                 "animal": "orca",
  57                 "size":   9009,
  58         }).Panic("It's over 9000!")
  59 }