Utils Winston Node JS

usage.winston.md

usage

const winLogger = require('@utils/winston')

winLogger.info(`your message`)

output

info: /api/form_test?columnFilters=%7B%7D&searchTerm=&sort=%7B%22type%22:%22DESC%22,%22field%22:%22created_at%22%7D&page=1&perPage=10 {"timestamp":"24/11/2022 07.22.29"}

winston.js

/* jslint node: true */
/* jshint esversion: 6 */

"use strict";

const { createLogger, format, transports, addColors } = require("winston");
const { combine, timestamp, label, prettyPrint } = format;

var logger;

const myCustomLevels = {
  levels: {
    error: 0,
    warn: 1,
    info: 2,
    foo: 3,
  },
  // baz: 'italic yellow',
  // foobar: 'bold red cyanBG'

  // Possible options are below.

  // Font styles: bold, dim, italic, underline, inverse, hidden, strikethrough.

  // Font foreground colors: black, red, green, yellow, blue, magenta, cyan, white, gray, grey.

  // Background colors: blackBG, redBG, greenBG, yellowBG, blueBG magentaBG, cyanBG, whiteBG
  colors: {
    error: "red",
    warn: "yellow",
    info: "green",
    foo: "blue",
  },
};

const timezoned = () => {
  return new Date().toLocaleString("id-ID", {
    timeZone: "Asia/Kuala_Lumpur",
  });
};

logger = createLogger({
  levels: myCustomLevels.levels,
  format: combine(
    // label({ label: 'right meow!' }),
    timestamp({ format: timezoned }),
    // format.splat(),
    prettyPrint(),

    // format.timestamp(),
    format.simple(),
    format.printf(
      (info) => `${info.timestamp} - ${info.level}: ${info.message}\r\n`,
    ),
    format.colorize({ all: true }),
    format.json(),
  ),
  transports: [
    new transports.File({ filename: "error.log", level: "error" }),
    new transports.File({ filename: "combined.log" }),
    // new (transports.Console)({'timestamp':true})
    new transports.Console({
      format: format.combine(format.colorize(), format.simple()),
    }),
  ],
});

addColors(myCustomLevels.colors);

module.exports = logger;