59 lines
2.0 KiB
JavaScript
59 lines
2.0 KiB
JavaScript
var log4js = require('../lib/log4js');
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//log the cheese logger messages to a file, and the console ones as well.
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log4js.configure({
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appenders: [
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{
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type: "file",
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filename: "cheese.log",
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category: [ 'cheese','console' ]
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},
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{
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type: "console"
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}
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],
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replaceConsole: true
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});
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//to add an appender programmatically, and without clearing other appenders
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//loadAppender is only necessary if you haven't already configured an appender of this type
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log4js.loadAppender('file');
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log4js.addAppender(log4js.appenders.file('pants.log'), 'pants');
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//a custom logger outside of the log4js/lib/appenders directory can be accessed like so
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//log4js.loadAppender('what/you/would/put/in/require');
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//log4js.addAppender(log4js.appenders['what/you/would/put/in/require'](args));
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//or through configure as:
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//log4js.configure({
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// appenders: [ { type: 'what/you/would/put/in/require', otherArgs: 'blah' } ]
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//});
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var logger = log4js.getLogger('cheese');
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//only errors and above get logged.
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//you can also set this log level in the config object
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//via the levels field.
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logger.setLevel('ERROR');
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//console logging methods have been replaced with log4js ones.
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//so this will get coloured output on console, and appear in cheese.log
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console.error("AAArgh! Something went wrong", { some: "otherObject", useful_for: "debug purposes" });
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//these will not appear (logging level beneath error)
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logger.trace('Entering cheese testing');
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logger.debug('Got cheese.');
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logger.info('Cheese is Gouda.');
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logger.warn('Cheese is quite smelly.');
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//these end up on the console and in cheese.log
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logger.error('Cheese %s is too ripe!', "gouda");
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logger.fatal('Cheese was breeding ground for listeria.');
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//these don't end up in cheese.log, but will appear on the console
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var anotherLogger = log4js.getLogger('another');
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anotherLogger.debug("Just checking");
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//one for pants.log
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//will also go to console, since that's configured for all categories
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var pantsLog = log4js.getLogger('pants');
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pantsLog.debug("Something for pants");
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