Please no changes this time.

logger/log.go

@@ -0,0 +1,63 @@
+package logger
+
+import (
+	"context"
+	log "github.com/sirupsen/logrus"
+)
+
+const contextKey = "logger"
+
+type Interface interface {
+	Info(format string, args ...interface{})
+	Error(format string, args ...interface{})
+	Debug(format string, args ...interface{})
+	Warn(format string, args ...interface{})
+	GetLevel() log.Level
+}
+
+type Logger struct {
+	logger *log.Logger
+}
+
+func FromContext(ctx context.Context) Interface {
+	logger, ok := ctx.Value(contextKey).(*Logger)
+	if !ok {
+		return nil
+	}
+
+	return logger
+}
+
+func NewLogger(level log.Level) Interface {
+	l := log.New()
+	l.SetFormatter(&log.JSONFormatter{})
+	l.SetLevel(level)
+
+	return &Logger{
+		logger: l,
+	}
+}
+
+func NewContext(ctx context.Context, logger Interface) context.Context {
+	return context.WithValue(ctx, contextKey, logger)
+}
+
+func (l *Logger) Info(format string, args ...interface{}) {
+	l.logger.Infof(format, args...)
+}
+
+func (l *Logger) Error(format string, args ...interface{}) {
+	l.logger.Errorf(format, args...)
+}
+
+func (l *Logger) Debug(format string, args ...interface{}) {
+	l.logger.Debugf(format, args...)
+}
+
+func (l *Logger) Warn(format string, args ...interface{}) {
+	l.logger.Warnf(format, args...)
+}
+
+func (l *Logger) GetLevel() log.Level {
+	return l.logger.GetLevel()
+}