package logrus_test import ( "log" "net/http" "github.com/sirupsen/logrus" ) func ExampleLogger_Writer_httpServer() { logger := logrus.New() w := logger.Writer() defer w.Close() srv := http.Server{ // create a stdlib log.Logger that writes to // logrus.Logger. ErrorLog: log.New(w, "", 0), } if err := srv.ListenAndServe(); err != nil { logger.Fatal(err) } } func ExampleLogger_Writer_stdlib() { logger := logrus.New() logger.Formatter = &logrus.JSONFormatter{} // Use logrus for standard log output // Note that `log` here references stdlib's log // Not logrus imported under the name `log`. log.SetOutput(logger.Writer()) }