stackdriver

README

GCP

set log level name to Severity for GCP StackDriver

Usage

import (
	"os"
	"testing"

	mlog "github.com/micro/go-micro/v2/logger"
	zlog "github.com/micro/go-plugins/logger/zerolog/v2"
	"github.com/rs/zerolog"
	"github.com/rs/zerolog/pkgerrors"
	"github.com/xmlking/micro-starter-kit/shared/config"
	"github.com/xmlking/micro-starter-kit/shared/micro/logger/stackdriver"
)

func ExampleInitLogger_withGcp() {
	zerolog.ErrorStackMarshaler = pkgerrors.MarshalStack
	zerolog.LevelFieldName = "severity"
	zerolog.TimestampFieldName = "timestamp"
	mLogger := zlog.NewLogger(
		zlog.WithOut(os.Stdout),
		zlog.UseAsDefault(),
		zlog.WithProductionMode(),
		zlog.WithHooks([]zerolog.Hook{stackdriver.StackdriverSeverityHook{}}),
		zlog.WithTimeFormat("aaa"),
	)
	mlog.Register(mLogger)
	logr, _ := mlog.GetLogger("zerolog")
	logr.Log(logger.InfoLevel, "Hello World")
	// Output:
	// {"severity":"info","timestamp":"aaa","severity":"Info","message":"Hello World"}
}

Documentation

Index

• Variables
• type StackdriverSeverityHook
  • func (h StackdriverSeverityHook) Run(e *zerolog.Event, level zerolog.Level, msg string)

Variables

var LevelToSeverity = func(level zerolog.Level) string {
	switch level {
	case zerolog.NoLevel:
		return "Default"
	case zerolog.DebugLevel:
		return "Debug"

	case zerolog.WarnLevel:
		return "Warning"
	case zerolog.ErrorLevel:
		return "Error"
	case zerolog.FatalLevel:
		return "Alert"
	case zerolog.PanicLevel:
		return "Emergency"
	default:
		return "Info"
	}
}

LevelToSeverity converts a zerolog level to the stackdriver severity Stackdriver has more levels than zerolog so we skip some severities. By default we set info when no level is provided.

Types

type StackdriverSeverityHook

type StackdriverSeverityHook struct{}

func (StackdriverSeverityHook) Run

func (h StackdriverSeverityHook) Run(e *zerolog.Event, level zerolog.Level, msg string)