ing

logging.go

@@ -8,31 +8,38 @@ import (
 	"go.uber.org/zap"
 )
 
-var logger *zap.Logger
+var logger *zap.SugaredLogger
 
-func Logger() *zap.Logger {
+func Logger() *zap.SugaredLogger {
 	if nil == logger {
 		log.Panicf("Initialize Logger first to use Logger")
 	}
 	return logger
 }
 
-func InitializeLogger(configPath string) {
-	var cfg zap.Config
-	var err error
+func InitializeLogger(configPath string) error {
+	var (
+		cfg     zap.Config
+		_logger *zap.Logger
+		err     error
+	)
 
 	conf := config.New()
 
 	if err = conf.Load(&cfg, configPath); nil != err {
 		log.Printf("Loading of logger config has been failed [%v]", err)
-		if logger, err = zap.NewDevelopment(); nil != err {
-			log.Panicf("Building of logger config[Development] has been failed [%v]", err)
+		if _logger, err = zap.NewDevelopment(); nil != err {
+			return err
 		}
-		logger.Info("Logger has been initialized as development mode")
-		return
+		logger = _logger.Sugar()
+		logger.Infof("Logger has been initialized as development mode")
+		return nil
 	}
 
-	if logger, err = cfg.Build(); nil != err {
-		log.Panicf("Building of logger config[%s] has been failed [%v]", configPath, err)
+	if _logger, err = cfg.Build(); nil != err {
+		return err
 	}
+	logger = _logger.Sugar()
+
+	return nil
 }

logging_test.go

@@ -0,0 +1,14 @@
+package logging
+
+import (
+	"log"
+	"testing"
+)
+
+func TestInitializeLogger(t *testing.T) {
+	if err := InitializeLogger(""); nil != err {
+		log.Panicf("Failed %v", err)
+	}
+
+	logger.Infof("Logger has been initialized")
+}