architect-log4js

Expose log4js as architect service.

Installation

npm install --save architect-log4js

Config Format

{
  "packagePath": "architect-log4js",
  "config": {
    appenders: {
      out: { type: 'console' }
    },
    categories: {
      default: { appenders: [ 'out' ], level: 'info' }
    }
  }
}

}

Usage

Boot Architect :

var path = require('path');
var architect = require("architect");

var configPath = path.join(__dirname, "config.js");
var config = architect.loadConfig(configPath);

architect.createApp(config, function (err, app) {
    if (err) {
        throw err;
    }
    //app.services.log is avaliable now
    var log = app.services.log.getLogger('app');
    log.info('application started');
});

Configure Log4js Architect service with config.js :

module.exports = [{
    packagePath: "architect-log4js",
    config: {
      appenders: [
        { type: "console" }
      ],
      replaceConsole: true
    }
}, './routes'];

config object is passed to log4js.configure method. See log4js configuration for more options.

Consume log service in your application :

{
  "name": "routes",
  "version": "0.0.1",
  "main": "index.js",
  "private": true,

  "plugin": {
    "consumes": ["log"]
  }
}

Eventually use the log service in your app :

module.exports = function setup(options, imports, register) {
    var logger = imports.log.getLogger(); //get default logger
    log.info('plugin initialized.');
    register();
};

request logger

This module provides a log request feature that is not available in log4js itself.

Example :

    rest.get('/', function(req, res) {
        var logger = imports.log.requestLogger(req).getLogger(); //get default logger
        log.info('plugin initialized.');
    });

This will produce :

[2015-02-06 16:03:54.329] [INFO] - [/] plugin initialized.

#### options

• request.property : request property to log defaults to 'url'. May also be a function that takes a request as first argument.
• request.format : {string} message format defaults to '[%s] %s', where first placeholder is the request property and the second is the actual message.