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think-logger3
Advanced tools
ThinkJS3.x log module, based on log4js.
npm install think-logger3
const Logger = require('think-logger3');
let logger = new Logger();
logger.debug('Hello World');
There has four log function you can use:
logger.info('info log');
logger.debug('debug log');
logger.warn('warn log');
logger.error('error log');
If you want to log file, you can use file adapter like this:
const Logger = require('think-logger3');
let logger = new Logger({
handle: Logger.File,
filename: __dirname + '/test.log'
});
logger.debug('Hello World');
This adapter will log to a file, and supports split log file by a constant file size. For example:
const Logger = require('think-logger3');
let logger = new Logger({
handle: Logger.File,
filename: __dirname + '/debug.log',
maxLogSize: 50 * 1024, //50M
backups: 10 //max chunk number
})
Then initial log would create a file called debug.log
. After this file reached maxLogSize
, a new file named debug.log.1
will be created. After log file number reached backups
, old log chunk file will be removed.
filename
: log filenamemaxLogSize
: The maximum size (in bytes) for a log file, if not provided then logs won't be rotated.backups
: The number of log files to keep after logSize has been reached (default 5)absolute
: If filename
is a absolute path, the absolute
value should be true
.layouts
: Layout defines the way how a log record is rendered. More layouts can see here.This adapter will log to a file, moving old log messages to timestamped files according to a specified pattern. For example:
const Logger = require('think-logger3');
let logger = new Logger({
handle: Logger.DateFile,
filename: __dirname + '/debug.log',
pattern: '-yyyy-MM-dd',
alwaysIncludePattern: false
});
Then initial log would create a file called debug.log
. At midnight, the current debug.log
file would be rename to debug.log-2017-03-12
(for example), and a new debug.log
file created.
level
: log levelfilename
: log base filenamepattern
: date filename would append to filename. A new file is started whenever the pattern for the current log entry differs from that of the previous log entry. The following strings are recognised in the pattern:
alwaysIncludePattern
: If alwaysIncludePattern
is true, then the initial file will be filename.2017-03-12
and no renaming will occur at midnight, but a new file will be written to with the name filename.2017-03-13
.absolute
: If filename
is a absolute path, the absolute
value should be true
.layouts
: Layout defines the way how a log record is rendered. More layouts can see here.think-logger3
will auto detect cluster mode by cluster.workers
, you needn't configure for cluster handly. If you want instance logger before fork worker, you can use like new Logger({handle: Logger.File}, true)
.
Contributions welcome!
FAQs
logger for ThinkJS 3.x
We found that think-logger3 demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 8 open source maintainers collaborating on the project.
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