Restrict/Filter logs by namespace and level

[tiagobnobrega]

Hi. Great work on this library. I have one question. Is there a way to define the least severe level that will be rendered for a specific namespace?

Let's say I have:

logA = adze.namespace('nsA').seal(); and logB = adze.namespace('nsB').seal();. I want to render Debug or more severe logs from logA, but only Warn or more severe from logB and any other logs should only render Error or more severe messages.

What would be the best way to accomplish this?

[AJStacy]

Hey @tiagobnobrega, great question.

If you take a look at the documentation for the seal() modifier, you should see that it accepts a UserConfiguration value as a parameter (https://adzejs.com/reference/terminators.html#seal). Also, if you take a look at the UserConfiguration documentation, you should see that it accepts an activeLevel property (https://adzejs.com/reference/configuration.html#user-configuration).

So, instead of setting global configuration with the setup() function, rather provide specific configurations to each child logger in the seal() terminator.

export const logA = adze.namespace('nsA').seal({ activeLevel: 'debug' });
export const logB = adze.namespace('nsB').seal({ activeLevel: 'warn' });

Keep in mind that the setup() function is meant for global overrides only. It's not required!

I hope this helps!

[AJStacy]

Also, I think this is a gap in the Getting Started documentation that I should explain in more detail.