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Go Library of my helper functions

Logging

Example:

import "github.com/bluec0re/go-helperlib/log"

func foo() {
	l := log.NewContextLogger()
	l.Infof("Log message in foo")
	l.Errorf("error message in foo")
}

func main() {
	_, err := log.AddFileHandler("test.log")
	if err != nil {
		log.Fatalf("Error: %s", err)
	}
	log.Debugf("This is a %s msg", log.LevelDebug)
	log.Infof("This is a %s msg", log.LevelInfo)
	log.Warnf("This is a %s msg", log.LevelWarn)
	log.Errorf("This is a %s msg", log.LevelError)
	log.Fatalf("This is a %s msg", log.LevelFatal)
	foo()
}

Cli output:

[DEBUG] This is a DEBUG msg
[ INFO] This is a INFO msg
[ WARN] This is a WARN msg
[ERROR] This is a ERROR msg
[FATAL] This is a FATAL msg
[ INFO] Log message in foo
[ERROR] error message in foo

Logfile output:

[2018-03-12T13:07:33+01:00] DEBUG: <main (example.go:16)>: This is a DEBUG msg
[2018-03-12T13:07:33+01:00] INFO: <main (example.go:17)>: This is a INFO msg
[2018-03-12T13:07:33+01:00] WARN: <main (example.go:18)>: This is a WARN msg
[2018-03-12T13:07:33+01:00] ERROR: <main (example.go:19)>: This is a ERROR msg
[2018-03-12T13:07:33+01:00] FATAL: <main (example.go:20)>: This is a FATAL msg
[2018-03-12T13:07:33+01:00] f1ececd4-25ed-11e8-8411-a08cfde31c8b INFO: <foo (example.go:7)>: Log message in foo
[2018-03-12T13:07:33+01:00] f1ececd4-25ed-11e8-8411-a08cfde31c8b ERROR: <foo (example.go:8)>: error message in foo

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