initial commit 2

infra/logger/logger.go

@@ -0,0 +1,53 @@
+package logger
+
+import (
+	"fmt"
+	"os"
+
+	"io"
+
+	"bitbucket.org/nemt/nemt-portal-api/infra/config"
+	"github.com/Sirupsen/logrus"
+)
+
+// Logger is the default application logger compatible with the echo.Logger interface
+type Logger struct {
+	cfg *config.Config
+	*logrus.Entry
+}
+
+// InfoWriter returns the io.Writer for info level
+func (l *Logger) InfoWriter() io.Writer {
+	return l.WriterLevel(logrus.InfoLevel)
+}
+
+// ErrorWriter returns the io.Writer for error level
+func (l *Logger) ErrorWriter() io.Writer {
+	return l.WriterLevel(logrus.ErrorLevel)
+}
+
+// New returns a new Logger instance
+func New(cfg *config.Config) (*Logger, error) {
+	if cfg.Log.LogToFile {
+		file, err := os.Create(cfg.Log.Path)
+		if err != nil {
+			fmt.Printf("Error to create log file for library: %s\n", err.Error())
+			panic(err)
+		}
+		logrus.SetOutput(file)
+	}
+
+	logrus.SetFormatter(&logrus.JSONFormatter{})
+
+	if cfg.App.Debug {
+		logrus.SetLevel(logrus.DebugLevel)
+	} else {
+		logrus.SetLevel(logrus.InfoLevel)
+	}
+
+	entry := logrus.WithFields(logrus.Fields{
+		"app": cfg.App.Name,
+	})
+
+	return &Logger{cfg, entry}, nil
+}