/// /// import log4js = require('log4js'); log4js.addAppender(log4js.appenders.file('logs/cheese.log'), 'cheese'); var logger = log4js.getLogger('cheese'); logger.setLevel('ERROR'); if (logger.isLevelEnabled(log4js.levels.DEBUG)) logger.info('DEBUG is enabled'); if (logger.isTraceEnabled()) logger.info('TRACE is enabled'); if (logger.isDebugEnabled()) logger.info('DEBUG is enabled'); if (logger.isInfoEnabled()) logger.info('INFO is enabled'); if (logger.isWarnEnabled()) logger.info('WARN is enabled'); if (logger.isErrorEnabled()) logger.info('ERROR is enabled'); if (logger.isFatalEnabled()) logger.info('FATAL is enabled'); logger.trace('Entering cheese testing'); logger.debug('Got cheese.'); logger.info('Cheese is Gouda.'); logger.warn('Cheese is quite smelly.'); logger.error('Cheese is too ripe!'); logger.fatal('Cheese was breeding ground for listeria.'); var cb = () => {}; log4js.shutdown(cb); log4js.configure({ appenders: [ { type: 'console' }, { type: 'file', filename: 'logs/cheese.log', category: 'cheese' } ] }); var defaultLogger = log4js.getDefaultLogger(); defaultLogger.debug('Got cheese.'); import express = require('express'); var app = express(); app.configure(() => { app.use(log4js.connectLogger(logger, { level: log4js.levels.INFO, format: ':method :url' })); }); app.get('/', function(req, res) { res.send('hello world'); }); app.listen(5000); log4js.configure({ "appenders": [ { "type": "console", "layout": { "type": "pattern", "pattern": "%d %p %c - %m" } } ], "levels": { "[all]": "INFO", "category1": "ERROR", "category2": "DEBUG" } }); log4js.configure('file.json', { reloadSecs: 300 });