logdc

Simple console log for NodeJs with colors and timestamp. 0 dependencies.

Installation

$ npm install logdc

$ yarn add logdc

Usage

const log = require(logdc);

log.info('Lorem Ipsum', {foo: ['bar']}, [1, 2, 3], 'Dolorem');
$[19:15:46] INFO    : 'Lorem Ipsum', { foo: [ 'bar' ] }, [ 1, 2, 3 ], 'Dolorem'

Types (Default)

// code
log.info('Lorem Ipsum');
log.warn('Lorem Ipsum');
log.error('Lorem Ipsum');
log.success('Lorem Ipsum');
log.log('Lorem Ipsum');
log.br();
// console:

$[19:15:46] INFO    : 'Lorem Ipsum'
$[19:15:46] WARN    : 'Lorem Ipsum'
$[19:15:46] ERROR   : 'Lorem Ipsum'
$[19:15:46] SUCCESS : 'Lorem Ipsum'
$[19:15:46] LOG     : 'Lorem Ipsum'
$[19:15:46] ::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 

Separator

log.br();
$[19:15:46] :::::::::::::::::::::::::::::::::::::::::::::::::::::::::

To change separator character override default settings for label br.

Settings

Override default settings or create new labels in your package.json file.

Add logdcConfig node:

  "logdcConfig": {
    "labels": {
      "foo": {
        "color": "red",
        "text": "My Custom label"
      },
      "warn": {
        "color": "green",
        "text": "Do not warn me!"
      }
    },
    "time": true,
    "counter": 2,
    "equal": true
  }

1. Labels

1.1. Hide labels

  "logdcConfig": {
    "labels": false
  }

log.info('Lorem Ipsum');

$[19:19:25] 'Lorem Ipsum'

1.2. Add custom labels, or override default

"logdcConfig": {
    "labels": {
        "foo": {
            "color": "red",
            "text": "My Custom label"
        },
        "warn": {
            "color": "green",
            "text": "Do not warn me!"
        }
    }
}

log.foo('Lorem Ipsum');
$[19:15:46] FOO     : 'Lorem Ipsum'

log.warn('Lorem Ipsum');
$[19:15:46] DO NOT WARN ME! : 'Lorem Ipsum'

1.3. Equal length

Length of labels (type name + spaces + ':') is equal to longest type name (default 8 SUCCESS :), so that colon is always at the same vertical position. To disable this behaviour set equal as false

"logdcConfig": {
    "equal": false
}

log.info('Lorem Ipsum');
log.error('Lorem Ipsum');
// console
$[19:15:46] INFO: 'Lorem Ipsum'
$[19:15:46] ERROR: 'Lorem Ipsum'

2. Time

To hide timestamp set time to false

"logdcConfig": {
    "time": false
}

log.info('Lorem Ipsum');
$INFO    : 'Lorem Ipsum'

3. Colors

Label name has color.

Config counter is defining number of logged arguments to colorize, default is 2, or colorize label and first argument.

3.1. To disable colors pass set counter as 0

"logdcConfig": {
    "counter": 0
}

log.info('Lorem Ipsum');
$[19:15:46] INFO    : 'Lorem Ipsum'

3.2. To add colors to other logged parameters increase counter (1 is for label)

"logdcConfig": {
    "counter": 4
}

log.info('Lorem Ipsum', {foo: 'bar'}, 'Third param');
$[19:15:46] INFO    : 'Lorem Ipsum', { foo: 'bar' }, 'Third param'

3.3. To change color of default label set labels with default type as key:

"logdcConfig": {
    "labels": {
        "error": {
            "color": "white",
            "text": "No errors"
        },
        "warn": {
            "color": "green",
            "text": "Do not warn me!"
        }
    }
}

log.error('Lorem Ipsum');
$[19:15:46] NO ERRORS : 'Lorem Ipsum'

Default arguments

  "logdcConfig": {
    "labels": {
        "log": {
            "color": "white",
            "text": "log"
        },
        "info":    {
            "color": "white",
            "text": "info"
        },
        "warn":    {
            "color": "yellow",
            "text": "warning"
        },
        "error":   {
            "color": "red",
            "text": "error"
        },
        "success": {
            "color": "green",
            "text": "success"
        },
        "br":      {
            "color: "white",
            "text": ":"
        }
    },
    "time": true,
    "counter": 2,
    "equal": true
  }

Examples

log.info('Lorem Ipsum', {foo: ['bar']}, [1, 2, 3], 'Dolorem')
$[17:03:26] INFO    : 'Lorem Ipsum', { foo: [ 'bar' ] }, [ 1, 2, 3 ], 'Dolorem'

log.warn('Lorem Ipsum', {foo: ['bar']}, [1, 2, 3], 'Dolorem')
$[17:03:26] WARN    : 'Lorem Ipsum', { foo: [ 'bar' ] }, [ 1, 2, 3 ], 'Dolorem'

log.error('Lorem Ipsum', {foo: ['bar']}, [1, 2, 3], 'Dolorem')
$[17:03:26] ERROR   : 'Lorem Ipsum', { foo: [ 'bar' ] }, [ 1, 2, 3 ], 'Dolorem'

log.success('Lorem Ipsum', {foo: ['bar']}, [1, 2, 3], 'Dolorem')
$[17:03:26] SUCCESS : 'Lorem Ipsum', { foo: [ 'bar' ] }, [ 1, 2, 3 ], 'Dolorem'

log.log('Lorem Ipsum', {foo: ['bar']}, [1, 2, 3], 'Dolorem')
$[17:03:26] LOG     : 'Lorem Ipsum', { foo: [ 'bar' ] }, [ 1, 2, 3 ], 'Dolorem'

log.br()
$[17:03:26] :::::::::::::::::::::::::::::::::::::::::::::::::::::::::