Testing winston custom logging

console

> $ npm start                                                                                                  ⬡ 4.2.1

> [email protected] start /Users/coonrod/dev/node/winston-test
> node index.js

2016-01-07T20:59:32.426Z - info: Logger initialized, standard log levels.
2016-01-07T20:59:32.429Z - info: Testing syslog levels. Info through emerg should be visible.
Attempting level trace
Attempting level debug
Attempting level info
2016-01-07T20:59:32.432Z - info: Testing level info
Attempting level notice
2016-01-07T20:59:32.432Z - notice: Testing level notice
Attempting level warning
2016-01-07T20:59:32.432Z - warning: Testing level warning
Attempting level error
2016-01-07T20:59:32.432Z - error: Testing level error
Attempting level crit
2016-01-07T20:59:32.432Z - crit: Testing level crit
Attempting level alert
2016-01-07T20:59:32.432Z - alert: Testing level alert
Attempting level emerg
2016-01-07T20:59:32.432Z - emerg: Testing level emerg
2016-01-07T20:59:32.432Z - info: Testing custom levels. Only info through emerg should be visible.
Attempting level trace
2016-01-07T20:59:32.433Z - trace: Testing level trace
Attempting level debug
2016-01-07T20:59:32.433Z - debug: Testing level debug
Attempting level info
2016-01-07T20:59:32.433Z - info: Testing level info
Attempting level notice
Attempting level warning
Attempting level error
Attempting level crit
Attempting level alert
Attempting level emerg

index.js

var winston = require('winston');

var transports = [];

function consoleTransport(w){
    return new(w.transports.Console)({
        colorize: true,
        level: 'info',
        timestamp: true
    });
}

transports.push(consoleTransport(winston));

var levels = {
    "trace": 0,
    "debug": 1,
    "info": 2,
    "notice": 3,
    "warning": 4,
    "error": 5,
    "crit": 6,
    "alert": 7,
    "emerg": 8
};

var colors = {
    "trace": "magenta",
    "debug": "blue",
    "info": "green",
    "notice": "yellow",
    "warning": "red",
    "error": "red",
    "crit": "red",
    "alert": "yellow",
    "emerg": "red"
};

var logger = new (winston.Logger)({transports: transports});

logger.setLevels(winston.config.syslog.levels);

function log(message, severity){
    if(severity === undefined || severity === null){
        severity = 'info';
    }

    var args = [severity, message];
    args.push.apply(args, Array.prototype.slice.call(arguments, 2));
    logger.log.apply(logger, args);
}

log("Logger initialized, standard log levels.", 'info');

try{
    var testLevels = [
        "trace",
        "debug",
        "info",
        "notice",
        "warning",
        "error",
        "crit",
        "alert",
        "emerg"
    ];

    log("Testing syslog levels. Info through emerg should be visible.");
    testLevels.forEach(function(level){
        var message = "Testing level " + level;
        console.log("Attempting level " + level);
        log(message, level);
    });

    logger.setLevels(levels);
    winston.addColors(colors);

    log("Testing custom levels. Only info through emerg should be visible.");
    testLevels.forEach(function(level){
        var message = "Testing level " + level;
        console.log("Attempting level " + level);
        log(message, level);
    });


} catch (e){
    log("Unsupported logging level!", "error", e);
}

package.json

{
  "name": "winston-test",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "node index.js"
  },
  "author": "",
  "license": "MIT",
  "dependencies": {
    "winston": "^2.0.0"
  }
}