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    mksloggerpublic

    nlogger

    nlogger is a Node.js logging library that can

    • print messages with module name and current line number so you know from where it was called
    • print messages in color
    • print parameters in message
    • be configured from file

    Usage

    Use npm or download. Then add to your code:

    var logger = require('./nlogger').logger(module);

    module is object defined automatically by Node.js. If you don't want automatic module names, replace it with your desired string name.

    logger.info(message); logger.info(message, parameter...);

    Strings {} in message will be replaced by appropriate parameter. See examples.

    Examples

    var logger = require('./nlogger').logger(module); logger.info('Info message'); logger.debug('Debug message'); logger.warn('Warning message'); logger.error('Error message'); logger.trace('Trace message'); logger.info('Array = {}, Object = {}', [1, 2, 3, 4], {one: 1, two: 2});

    Output samples

    2010-10-02 20:39:03.570 INFO main:5 - Info message 2010-10-02 20:39:03.588 DEBUG main:6 - Debug message 2010-10-02 20:39:03.589 WARN main:7 - Warning message 2010-10-02 20:39:03.590 ERROR main:8 - Error message 2010-10-02 20:39:03.590 TRACE main:9 - Trace message 2010-10-02 20:39:03.590 INFO main:10 - Array = [ 1, 2, 3, 4 ], Object = { one: 1, two: 2 }

    2010-10-02 20:59:12.496 INFO my-modules/first:3 - Message from first module from line #3 2010-10-02 20:59:12.514 INFO my-modules/second:10 - Message from second module from line #10 2010-10-02 20:59:12.515 INFO fake-module-name:3 - Message from third module from line #3 2010-10-02 20:59:12.516 INFO :3 - Message from fourth module from line #3

    Configuration

    nlogger can load optional configuration file nlogger.json which looks like:

    { "color": "auto", "level": { "*": "debug", "my-modules/first": "info" } }

    • color - print message in color? [true, false, "auto"]
    • level.* - default debug level
    • level.yourModuleName - debug level for specified module

    Possible debug levels are trace, debug, info, warn, error.

    You can also use single letter alias's of the above - eg. log.d()

    Changes

    o.4.0 - Added single letter aliases

    0.3.0 - Added parameters support to logging methods

    0.2.0 - Added configuration file support

    0.1.0 - First npm release

    License

    Released under MIT License. Enjoy and Fork!

    install

    npm i mkslogger

    Downloadsweekly downloads

    5

    version

    0.0.4

    license

    none

    repository

    githubgithub

    last publish

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