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somkiat_config.go
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/
somkiat_config.go
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package main
import (
"fmt"
"os"
"path"
"time"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
func main() {
// สร้าง log factory
logFactory := NewLoggerFactory("./logs")
logger, loggerClose, err := logFactory.NewLogger()
if err != nil {
fmt.Printf("%v", err.Error())
os.Exit(1)
}
defer loggerClose()
// Error log จะถูกบันทึกลงไฟล์ และออกไปที่ console
logger.Error("Some error",
zap.Error(fmt.Errorf("error")),
zap.String("key", "value"))
// Info log จะไม่ถูกบันทึกและแสดงผลใด ๆ
logger.Info("Some data",
zap.Error(fmt.Errorf("data")),
zap.String("key", "value"))
}
type LoggerFactory interface {
NewLogger() (*zap.Logger, func(), error)
}
type loggerFactory struct {
logPath string
}
func NewLoggerFactory(logPath string) LoggerFactory {
return &loggerFactory{
logPath: logPath,
}
}
func (lf *loggerFactory) NewLogger() (*zap.Logger, func(), error) {
now := time.Now()
logfile := path.Join(lf.logPath, fmt.Sprintf("%s.log", now.Format("2006-01-02")))
file, err := os.OpenFile(logfile, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
return nil, nil, err
}
pe := zap.NewProductionEncoderConfig()
fileEncoder := zapcore.NewJSONEncoder(pe)
pe.EncodeTime = zapcore.ISO8601TimeEncoder
consoleEncoder := zapcore.NewConsoleEncoder(pe)
highPriority := zap.LevelEnablerFunc(func(lvl zapcore.Level) bool {
return lvl >= zapcore.ErrorLevel
})
core := zapcore.NewTee(
zapcore.NewCore(fileEncoder, zapcore.AddSync(file), highPriority),
zapcore.NewCore(consoleEncoder, zapcore.AddSync(os.Stdout), highPriority),
)
log := zap.New(core, zap.AddCaller(), zap.AddStacktrace(zap.WarnLevel))
close := func() {
log.Sync()
file.Close()
}
return log, close, nil
}