strapi/packages/utils/logger/lib/formats/log-errors.js

'use strict';

const { format } = require('winston');

module.exports = format(info => {
  if (info instanceof Error) {
    return Object.assign({}, info, {
      message: `${info.message}${info.stack ? `\n` + info.stack : ''}`,
    });
  }

  return info;
});