daemon-manager

Utility module that adds funcitonality to native node daemons.

npm install daemon-manager
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Daemon Wrapper

This utility module was built specifically to standardize behavior across node-windows, node-mac, and node-linux.

Features

There are two main components, the Controller and the Logger. The Controller monitors and manages the node script. The logger wraps general logging, making it easier to output to the native system and error logs.

Controller Features

Logger Features

Custom Functions

The manager.Logger singleton class allows developers to replace console methods with their own functions for:

  • log()
  • info()
  • dir()
  • warn()
  • error()
  • time()
  • timeEnd()
  • assert()

If these methods aren't overridden, the default methods from console will be used.

Strip Console Colors

The logger also has a configuration attribute called stripColors, which will strip any console color information from the logs. This is useful when a script should output color-coded information to the screen during development, but not in production.

Pre/Postfix Messages

The logger can optionally prefix and postfix messages with static text. For example, if the info log should have the word INFO: before each message, it can be configured like:

    var logger = new manager.Logger({
        preInfo: 'INFO: ',
        postInfo: ' << End Info`
    });

    logger.info('my message');  // <--- Outputs Info: my message << End Info

Each method has a pre and post configuration option.

Variable Replacement

The logger has a unique configuration option called findReplace. This can be used to find and replace text in a log message. For example, the following configuration will put the date in front of every log:

    var logger = new manager.Logger({
        preLog: '[DATE]: ',
        findReplace: {
            '[DATE]': function(msg){
                return (new Date()).toLocaleString();
            }
        }
    });

    logger.log('my message'); // <-- Outputs Mon Nov 25 2013 20:35:01 GMT-0600 (Central Standard Time): my message

The date in the aforementioned example would of course be the current date.

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