etlog

etlog is a log component for go.

Features

• Support log level
• Stdout and file appender
• log markers support

Quick start

1. Simple usage

etlog.Log.Info("Hello World")

It will output the log into stdout device(console log).

2. Using log config

logger, err := etlog.NewEtLogger(etlog.SetConfigPath("log.yaml"))
if err != nil {
    panic(err)
}
logger.Debug("hello")
logger.Info("world")

the log config file please refer to: example/log.yaml

3. Using fieds

etlog.Log.WithError(fmt.Errorf("oops")).
    WithField("key", "word").
    WithField("now", time.Now()).
    Error("something wrong happened")

the WithField method will help you print K-V fields into log.

4. Using markers

etlog.Log.WithMarkers("trace").Data("hello world")

Because we support different log handler, to determine which handler the content will be output, we use marker to route it. Such as the example, when we use trace as marker of log, then the content will be processed by handler marked as trace.