zap

var (
	DevelopmentConfiguration = zap.Config{
		Level:             zap.NewAtomicLevelAt(zapcore.DebugLevel),
		Development:       true,
		DisableCaller:     false,
		DisableStacktrace: false,
		Encoding:          "console",
		EncoderConfig: zapcore.EncoderConfig{
			TimeKey:        "T",
			LevelKey:       "L",
			NameKey:        "N",
			CallerKey:      "C",
			FunctionKey:    zapcore.OmitKey,
			MessageKey:     "M",
			StacktraceKey:  "S",
			LineEnding:     zapcore.DefaultLineEnding,
			EncodeLevel:    zapcore.LowercaseColorLevelEncoder,
			EncodeTime:     zapcore.RFC3339NanoTimeEncoder,
			EncodeDuration: zapcore.StringDurationEncoder,
			EncodeCaller:   zapcore.ShortCallerEncoder,
		},
		OutputPaths:      []string{"stderr"},
		ErrorOutputPaths: []string{"stderr"},
	}

	ProductionConfiguration = zap.Config{
		Level:             zap.NewAtomicLevelAt(zapcore.InfoLevel),
		Development:       false,
		DisableCaller:     true,
		DisableStacktrace: true,
		Encoding:          "json",
		Sampling: &zap.SamplingConfig{
			Initial:    100,
			Thereafter: 100,
		},
		EncoderConfig: zapcore.EncoderConfig{
			TimeKey:        "ts",
			LevelKey:       "lvl",
			NameKey:        "logger",
			CallerKey:      "caller",
			FunctionKey:    zapcore.OmitKey,
			MessageKey:     "msg",
			StacktraceKey:  "stacktrace",
			LineEnding:     zapcore.DefaultLineEnding,
			EncodeLevel:    zapcore.LowercaseLevelEncoder,
			EncodeTime:     zapcore.RFC3339NanoTimeEncoder,
			EncodeDuration: zapcore.SecondsDurationEncoder,
			EncodeCaller:   zapcore.ShortCallerEncoder,
		},
		OutputPaths:      []string{"stderr"},
		ErrorOutputPaths: []string{"stderr"},
	}
)