How can I use go.uber.org/zap lib to print different color with different log level and append log to different file depend on the log level?

Question

I started using the zap log library for my Go project. I want to print different colors to tty console based on the log level.

I find the zap/internal/color package can display different colors for strings, but I want to change the log level with different color.

I also want to write the log to some log files with different log level.

How to init and config the zap logger?

For how to log to different outputs based on level, see also [this](https://stackoverflow.com/questions/68472667/how-to-log-to-stdout-or-stderr-based-on-log-level-using-uber-go-zap/68476472#68476472) — blackgreen, Jul 31 '21 at 11:40

score 6 · Answer 1 · answered May 01 '17 at 06:53

6

Just met the same issue, and here are some code snippets for enable colors:

config := zap.NewDevelopmentConfig()
config.EncoderConfig.EncodeLevel = zapcore.CapitalColorLevelEncoder
logger, _ := config.Build()

logger.Info("Now logs should be colored")

reference: https://github.com/uber-go/zap/pull/307

answered May 01 '17 at 06:53

George Chen

69
3

It's discussed here as well - https://github.com/uber-go/zap/issues/648. – slm May 30 '21 at 03:19
Seems not to work with `zap.NewProductionConfig()` – tim-montague Oct 26 '22 at 02:44

How can I use go.uber.org/zap lib to print different color with different log level and append log to different file depend on the log level?

1 Answers1