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npmlogger

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NPM Logger is a package designed to write easily your log files. For more convenience npmlogger extends npmlog, so you can use it with minor changes in your application code.

Installation

npm install npmlogger --save

Basic Usage

// Call npmlogger instead of npmlog
var log = require('npmlogger');
 
// Set the log level required to be written
log.fileLevel = 'warn';
 
// Set the basepath for log files
log.fileBasePath = './logs';
 
// Set the filename
log.fileName = 'mylog.log';
 
// write error log to mylog.log
log.info('My prefix', 'i am info'); // Displayed but not written
log.error('My prefix', 'i am error'); // Displayed and written

Output :

[Fri Feb 03 2017 18:14:44 GMT+0100 (CET)] [error] [My prefix] i am error

Configuration

Note: All npmlogger methods and variables start with file.

log.fileName

  • {String}

The file name, .log extension is automaticly added at the end of name.

log.fileBasePath

  • {String}

The base path for the logs file, by default this is the logs directory related to the executed file.

log.fileCreatePath

  • {Bool}

When this feature is enabled, the path is automaticly created. Use mkpath package.

log.fileLevel

  • {String}

The level to write logs. Any logs at or above this level will be written. The special level silent will prevent anything from being logged ever.

log.fileColor

  • {Bool}

By default npmlogger remove all console colors from file. You can allow colors by setting this option to true.

log.fileMaxSize

  • {Number}

Set the max size for the log file, when the limit is reached the file is moved and a new one is created. The size is exprimed in kilobyte. The new file is named mylog_1.log or mylog_error_1.log if you enable log.fileLevelSuffix.

log.fileDatePrefix

This option allow you to prefix the filename with your own date format.

Note: The date prefix is always put before log.fileHeadPrefix.

log.fileHeadPrefix

  • {Bool}

This option allow you to prefix the files with the log.heading value like heading_mylog.log.

Important It is highly recommended to use slug keyword for log.heading or enable log.fileSlugify when log.fileHeadPrefix is enabled.

log.fileLevelSuffix

  • {Bool}

This option create seperated log file for each log level. So you can have mylog_error.log, mylog_warn.log, mylog_info.log etc...

Important It is highly recommended to use slug keyword for custom level or enable log.fileSlugify when log.fileLevelSuffix is enabled.

log.fileSlugify

  • {Bool}

When this feature is enabled the filename is slugified using RCF3986 standard.

Bug & suggestions

If you have any suggestions or have found a bug feel free to use the tracker.

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Install

npm i mydblog

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Version

1.0.0

License

ISC

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Collaborators

  • loganrose