Writer Hooks for Logrus
Send logs of given levels to any object with io.Writer
interface.
Usage
If you want for example send high level logs to Stderr
and
logs of normal execution to Stdout
, you could do it like this:
package main
import (
"io/ioutil"
"os"
log "github.com/sirupsen/logrus"
"github.com/sirupsen/logrus/hooks/writer"
)
func main() {
log.SetOutput(ioutil.Discard) // Send all Log to nowhere by default
log.AddHook(&writer.Hook{ // Send Log with level higher than warning to stderr
Writer: os.Stderr,
LogLevels: []log.Level{
log.PanicLevel,
log.FatalLevel,
log.ErrorLevel,
log.WarnLevel,
},
})
log.AddHook(&writer.Hook{ // Send info and debug Log to stdout
Writer: os.Stdout,
LogLevels: []log.Level{
log.InfoLevel,
log.DebugLevel,
},
})
log.Info("This will go to stdout")
log.Warn("This will go to stderr")
}