Install and use a third party nodejs module

Let's say you need 'native-dns' nodejs module in your appjs.

1. Install the module via nodejs npm

   Go in the 'data' directory of your application. Type 'npm install native-dns'. Module will be installed into node_modules directory

2. Load the module in the window ready event

   file: app.js

var app = module.exports = require('appjs'); app.serveFilesFrom(__dirname + '/content');

var window = app.createWindow({ width : 1200, height : 600 });

window.on('create', function(){ window.frame.show(); window.frame.center(); });

window.on('ready', function(){ window.require = require; window.process = process; window.module = module; window.dns = require('native-dns');

this.Function('return '+function(require, process, Buffer){ var Module = require('module'), path = require('path'), nodeCompile = Module.prototype._compile

Module.prototype._compile = function(content, filename){
  if (inBrowser) {
    return browserCompile.call(this, content, filename);
  } else {
    return nodeCompile.call(this, content, filename);
  }
};

var inBrowser = true;
// entry point is here, currently loads browser-main.js
document.mainModule = require('./browser-main');
inBrowser = false;

function browserCompile(content, filename) {
  var self = this;
  this.exports = {};
  this.children = [];
  content = content.replace(/^\#\!.*/, '');

  function require(request){
    inBrowser = true;
    request = self.require(request);
    inBrowser = false;
    return request;
  }

  require.resolve = function(request){
    return Module._resolveFilename(request, self);
  };

  require.main = document.mainModule;
  var argNames = ['exports', 'require', 'module', '__filename', '__dirname', 'global', 'process', 'Buffer', content];
  var args = [this.exports, require, this, filename, path.dirname(filename), window, process, Buffer];
  return Function.apply(null, argNames).apply(this.exports, args);
}

})().call(this, require, process, Buffer);

});

3. Use it !

Somewhere in your application:

```javascript

var question = dns.Question({
name: 'www.google.com',
type: 'A'
});

var req = dns.Request({
question: question,
server: { address: '8.8.8.8', port: 53, type: 'udp' },
timeout: 1000
});

req.on('timeout', function () {
console.log('Timeout in making request');
});

req.on('message', function (err, answer) {
answer.answer.forEach(function (a) {
 console.log(a.address);
});
});

req.on('end', function () {
console.log('Finished processing request');
});

req.send();