In 3.0.0 I cannot log objects without using JSON.stringify

I’m on version 3, but since I’ve upgraded the only way to log objects is by stringify first the object. But with errors is even worse because I cannot log the error at all, I need to use error.message or directly the console.

This is my configuration for the development environment:

`` const { createLogger, format, transports } = require(‘winston’); const { combine, timestamp, label, printf } = format;

const environment = process.env.NODE_ENV;
const timestampFormat = 'YYYY-MM-DD HH:mm:SS';

const loggerFormat = printf((info) => {
    return `[${info.label}] ${info.message}`;
});
logger = createLogger({
    format: combine(
        label({ label: 'immoliste' }),
        format.colorize({ all: true }),
        format.splat(),
        format.simple(),
        loggerFormat
    ),
    transports: [
        new transports.Console({
            level: 'debug',
            colorized: true
        })
    ]
});

Doing this:

logger.error('Error sending contact message:', JSON.stringify(err));

I got only:

[mylabel] Error sending contact message:

But is a pain in the ass having to stringify everything, and doind that for errors. What am I doing wrong?, because in previous versions it was straightforward.

[cpury]

Seriously, this seems like a downgrade. With Winston 2, I could just replace all console.X with winston.X. Why suddenly the ugly format tags?

[smyth64]

Couldn’t accept that I have tot use %o always and made this simple solution:

const prettyJson = format.printf(info => {
  if (info.message.constructor === Object) {
    info.message = JSON.stringify(info.message, null, 4)
  }
  return `${info.level}: ${info.message}`
})

const logger = createLogger({
  level: 'info',
  format: format.combine(
    format.colorize(),
    format.prettyPrint(),
    format.splat(),
    format.simple(),
    prettyJson,
  ),
  transports: [
    new transports.Console({})
  ],
})

So this logger…

  logger.info({ hi: 123 })

…transforms to this in the console

info: {
    "hi": 123
}

Hope I can help you guys 😄 Just awful if we always had two use “%o”