How can I customize the formatting in Winston logging?

How can I customize the formatting in Winston logging?

You can customize Winston logging formats by using the format property in the logger configuration. You can create your own format or use built-in formats.

Can you show me an example of a custom format?

Sure! Here's a simple example:

const { createLogger, format, transports } = require('winston');

const customFormat = format.printf(({ level, message, timestamp }) => {
  return `${timestamp} ${level}: ${message}`;
});

const logger = createLogger({
  format: format.combine(
    format.timestamp(),
    customFormat
  ),
  transports: [new transports.Console()]
});

What other built-in formats does Winston provide?

Winston provides several built-in formats like json, simple, and combine. You can mix and match them as needed.

How do I log errors with a custom format?

You can log errors using the logger's error method, and it will follow the custom format you've defined. Just call logger.error('Your error message');.