loglevel-filesave

Loglevel plugin for saving logs to the file

Installation

npm install loglevel-filesave

Usage

When the module is required it returns a function that accepts two arguments:

• logger - Loglevel logger instance
• options - Object with various options
  • file - Path to the file where the log should be written
  • prefix - String or a function (receives methodName and message as arguments) that will be used to format the logged message.
    • Default: methodName + ': ' + message
  • consoleLevel - Level of the messages that should be passed trough to the console (default loglevel behaviour).
    • Default: logger.levels.SILENT
  • fs - Filesystem module that should be used. Default: require('fs')
  • separator - Separator that should be used between entries:
    • Default: require('os').EOL (depends on the system)
  • level - Level of messages that should be written to the file.
    • Default: logger.levels.WARN

Example

var loglevel = require('loglevel');
var fileSave = require('loglevel-filesave');

var logger = loglevel.getLogger('log');
fileSave(logger, {file: 'log.txt'});

Requirements

• Should work on all versions of Node.js
• Dev requirement: Node.js 6.3+

TODO

• Add an option to use bulk saves

License

MIT License