Share your code. npm Orgs help your team discover, share, and reuse code. Create a free org »

    pincepublic

    Pince

    Pince is a lightweight logger that combines some of the best properties of log4j and node. It's equally usable in Node, (most) browsers, and Meteor (client and server).

    It was developed for MadEye.

    Features:

    • Log levels: error, warn, info, debug, trace
    • Dynamically change the log level on the client.
    • Change the log level with no code changes on the server.
    • Logging is very lightweight when there's nothing listening to it.
    • Each logger has a name -- you can set levels individually by name!
    • Names can be heirarchally namespaced by separating them with ':'s, like myLibrary:aModule:thisObject.
    • Set log levels by any level of the namespace hierarcy!

    Installation (Node.js)

    To install, npm install pince.

    In any file you wish to make a logger, require it via Logger = require('pince');

    Installation (Meteor)

    To install, just meteor add jag:pince. The global Logger symbol will be there waiting for you.

    By default, on the server Meteor will prepend a string to logs that includes a timestamp (amongst other things). To silence Meteor's prefix, run meteor with the --raw-logs flag: meteor --raw-logs.

    Usage

    Set the log level:

    //Default is info 
    Logger.setLevel('trace');

    Make a new logger:

    var log = new Logger('router');
    log.info("Routing.");
    //2013-10-31 11:29:36.097 info:  [router]  Routing. 
    log.trace("Setting up routes...");
    //2013-10-31 11:29:36.101 trace:  [router]  Setting up routes... 

    Set individual levels:

    Logger.setLevel('info');
    Logger.setLevel('controller', 'trace');
    var routerLog = new Logger('router');
    var controllerLog = new Logger('controller');
     
    routerLog.trace("Can't hear me!");
    //Nothing 
    controllerLog.trace("Can hear me.");
    //2013-10-31 11:31:21.906 trace:  [controller]  Can hear me. 
     
    Logger.setLevels({router:'debug', controller:'warn'});
    routerLog.info("Finally! Someone is listening to me.");
    //2013-10-31 11:32:48.374 info:  [router]  Finally! Someone is listening to me. 
    controllerLog.info("Hello? Hello??");
    //Nothing 

    Hierarchically name and set levels:

    var routerLog = new Logger('myPackage:router');
    var controllerLog = new Logger('myPackage:controller');
    Logger.setLevel('myPackage', 'info');
    Logger.setLevel('myPackage:controller', 'debug');
     
    routerLog.info('You can see this.');
    routerLog.debug('You cannot see this; myPackage level is set to info.');
    controllerLog.debug('You can see this, myPackage:controller level is set to debug.');

    install

    npm i pince

    Downloadsweekly downloads

    20

    version

    0.0.9

    license

    MIT

    repository

    github.com

    last publish

    collaborators

    • avatar