import (
    "github.com/evalphobia/google-api-go-wrapper/config"
    "github.com/evalphobia/logrus_stackdriver"
    "github.com/sirupsen/logrus"
)

func main() {
    hook, err := logrus_stackdriver.NewWithConfig("project_id", "test_log", config.Config{
        Email:      "xxx@xxx.iam.gserviceaccount.com",
        PrivateKey: "-----BEGIN PRIVATE KEY-----\nXXX\n-----END PRIVATE KEY-----\n",
    })

    // set custom fire level
    hook.SetLevels([]logrus.Level{
        logrus.PanicLevel,
        logrus.ErrorLevel,
        logrus.WarnLevel,
    })

    // ignore field
    hook.AddIgnore("context")

    // add custome filter
    hook.AddFilter("error", logrus_stackdriver.FilterError)


    // send log with logrus
    logger := logrus.New()
    logger.Hooks.Add(hook)
    logger.WithFields(f).Error("my_message") // send log data to Google Stackdriver logging API
}