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package logrus_test
import (
"os"
"github.com/sirupsen/logrus"
)
type DefaultFieldHook struct {
GetValue func() string
}
func (h *DefaultFieldHook) Levels() []logrus.Level {
return logrus.AllLevels
}
func (h *DefaultFieldHook) Fire(e *logrus.Entry) error {
e.Data["aDefaultField"] = h.GetValue()
return nil
}
func ExampleDefaultFieldHook() {
l := logrus.New()
l.Out = os.Stdout
l.Formatter = &logrus.TextFormatter{DisableTimestamp: true, DisableColors: true}
l.AddHook(&DefaultFieldHook{GetValue: func() string { return "with its default value" }})
l.Info("first log")
// Output:
// level=info msg="first log" aDefaultField="with its default value"
}
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