zap-logger

README.md

По мотивам https://github.com/sandipb/zap-examples/tree/master/src/customlogger

main.go

package main

import (
	"go.uber.org/zap"
	"go.uber.org/zap/zapcore"
)

func main() {
	encoding := "console"
	// encoding := "json"
	encodeLevel := zapcore.CapitalColorLevelEncoder
	if encoding == "json" {
		encodeLevel = zapcore.CapitalLevelEncoder
	}
	level := zapcore.DebugLevel
	// level := zapcore.InfoLevel

	cfg := zap.Config{
		Encoding:         encoding,
		Level:            zap.NewAtomicLevelAt(level),
		OutputPaths:      []string{"stdout"},
		ErrorOutputPaths: []string{"stdout"},
		EncoderConfig: zapcore.EncoderConfig{
			TimeKey:        "time",
			LevelKey:       "level",
			NameKey:        "logger",
			CallerKey:      "caller",
			FunctionKey:    zapcore.OmitKey,
			MessageKey:     "msg",
			StacktraceKey:  "stacktrace",
			LineEnding:     zapcore.DefaultLineEnding,
			EncodeLevel:    encodeLevel,
			EncodeTime:     zapcore.ISO8601TimeEncoder,
			EncodeDuration: zapcore.SecondsDurationEncoder,
			EncodeCaller:   zapcore.ShortCallerEncoder,
		},
	}

	logger, _ := cfg.Build()
	defer logger.Sync()

	logger.Debug("This is a DEBUG message")
	logger.Info("This is an INFO message")
	logger.Info("This is an INFO message with fields", zap.String("region", "us-west"), zap.Int("id", 2))
	// logger.Panic("Panic")
	logger.Info("This is an INFO message")

}