sugar

《中文文档》

more simple logger which package sugared zap. Please learn zap first if you want advanced using.

something you should know

sugar use zap.NewDevelopmentConfig() as default config, which use console as encoding style,
InitDevelopmentSugar() set encoding being json instead of console, which is practically better for docker's json logger plugin.

Leveled method

all methods of zap:

Debug/Debugf
Info/Infof
Warn/Warnf
Error/Errorf
Fatal/Fatalf
Panic/Panicf

logs looking

I recommend zap mostly because of its beautiful logs looking.

looking #1

Development mode with console style printing.

2019-06-10T09:13:03.672+0800    DEBUG   default/main.go:7       default development sugar of chalvern   {"unit": "main"}
2019-06-10T09:13:03.672+0800    INFO    default/main.go:20      log of myCustomLogger info      {"unit": "my_custom_logger"}
2019-06-10T09:13:03.672+0800    WARN    default/main.go:21      log of myCustomLogger warn      {"unit": "my_custom_logger"}
github.com/chalvern/sugar.(*Logger).Warn
        /Users/Chalvern/developer/golang/src/github.com/chalvern/sugar/logger.go:51
main.myCustomLogger
        /Users/Chalvern/developer/golang/src/github.com/chalvern/sugar/examples/default/main.go:21
main.main
        /Users/Chalvern/developer/golang/src/github.com/chalvern/sugar/examples/default/main.go:8
runtime.main
        /usr/local/go/src/runtime/proc.go:200
2019-06-10T09:13:03.672+0800    INFO    default/main.go:26      log of myCustomLogger2 info     {"unit": "my_custom_logger_2"}
2019-06-10T09:13:03.672+0800    WARN    default/main.go:27      log of myCustomLogger2 warn     {"unit": "my_custom_logger_2"}
github.com/chalvern/sugar.(*Logger).Warn
        /Users/Chalvern/developer/golang/src/github.com/chalvern/sugar/logger.go:51
main.myCustomLogger2
        /Users/Chalvern/developer/golang/src/github.com/chalvern/sugar/examples/default/main.go:27
main.main
        /Users/Chalvern/developer/golang/src/github.com/chalvern/sugar/examples/default/main.go:9
runtime.main
        /usr/local/go/src/runtime/proc.go:200

looking #2

Production mode with json style printing (Development mode can also has json stype printing, more see something you should know )

{"level":"info","ts":1560129183.672966,"caller":"default/main.go:13","msg":"default production sugar of chalvern","unit":"main"}
{"level":"info","ts":1560129183.673015,"caller":"default/main.go:20","msg":"log of myCustomLogger info","unit":"my_custom_logger"}
{"level":"warn","ts":1560129183.6730392,"caller":"default/main.go:21","msg":"log of myCustomLogger warn","unit":"my_custom_logger"}
{"level":"info","ts":1560129183.673059,"caller":"default/main.go:26","msg":"log of myCustomLogger2 info","unit":"my_custom_logger_2"}
{"level":"warn","ts":1560129183.673182,"caller":"default/main.go:27","msg":"log of myCustomLogger2 warn","unit":"my_custom_logger_2"}

example

you can find example in examples.

default sugar

// cat ./examples/default/main.go
package main

import "github.com/chalvern/sugar"

func main() {

	sugar.Debug("default development sugar of chalvern")
	myCustomLogger()
	myCustomLogger2()

	sugar.InitProductionSugar()
	sugar.Debug("should not be printed")
	sugar.Info("default production sugar of chalvern")
	myCustomLogger()
	myCustomLogger2()
}

func myCustomLogger() {
	myLogger := sugar.NewLoggerOf("my_custom_logger")
	myLogger.Info("log of myCustomLogger info")
	myLogger.Warn("log of myCustomLogger warn")
}

func myCustomLogger2() {
	myLogger := sugar.NewLoggerOf("my_custom_logger_2")
	myLogger.Info("log of myCustomLogger2 info")
	myLogger.Warn("log of myCustomLogger2 warn")
}

custom sugar

package main

import (
	"github.com/chalvern/sugar"
	"go.uber.org/zap"
)

func main() {
	config := zap.NewProductionConfig()
	config.OutputPaths = []string{"./production.log"}
	config.ErrorOutputPaths = []string{"./production_err.log"}
	sugar.SetSugar(&config)

	sugar.Info("main info")

	myCustomLogger()
}

func myCustomLogger() {
	myLogger := sugar.NewLoggerOf("my_custom_logger")
	myLogger.Info("log of myCustomLogger info")
	myLogger.Warn("log of myCustomLogger warn")
}

chalvern / sugar