Winston : understanding logging levels

Question

Reading and fiddling with Winston, I'm puzzled as to why the logging levels are ordered as they are and why the transports behave in the way they do (well, at least the Console one). I'd appreciate if someone could, perhaps even thoroughly, with real use case examples, explain why logging with Winston works this way? For example, I setup my logger like this : ``` var logger = new (winston.Logger)({ levels: winston.config.syslog.levels, colors: winston.config.syslog.colors, level: "debug", // I'm not sure what this option even does here??? transports: [ new (winston.transports.Console)({ colorize: true, handleExceptions: true, json: false, level: "debug" }) ] }); ``` So, if I do `logger.debug("Test");`, then it will log `debug: Test`, fine. But if I do `logger.info("Test");`, then nothing happens. The problem I have is that, If I want to log to the console eveverything but `debug` messages, what do I do? ... or even `debug` and `info` messages, but log everything else? Coming from a Ja…

Accepted Answer

As per the documentation, you can set your own Logging levels, 0 being lowest, and associate colours with it. Now, if you don't want to log the lowest level, just set the `level` property to the corresponding level. By default, the console logger has it's level set to `info`

So, here is an example:

```
logger = new (winston.Logger)({
  levels: {
    'info': 0,
    'ok': 1,
    'error': 2
  }
  transports: [
    new (winston.transports.ConsoleTransport)(silent: options.silent, level: 'ok')
  ]
});
```

Winston : understanding logging levels

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