Example of using genx to produce an Atom feed

genx-atom.js

var genx = require('genx')
   , http = require('http')
   , jsdom = require('jsdom').jsdom
   , qs = require('querystring')
   , uuid = require('node-uuid');

function ISODateString(d){
 function pad(n){return n<10 ? '0'+n : n}
 return d.getUTCFullYear()+'-'
      + pad(d.getUTCMonth()+1)+'-'
      + pad(d.getUTCDate())+'T'
      + pad(d.getUTCHours())+':'
      + pad(d.getUTCMinutes())+':'
      + pad(d.getUTCSeconds())+'Z'}

function generateXml(body) {
  var w = new genx.Writer()
    , window = jsdom(body, null, {
      features: {
        FetchExternalResources: false,
        MutationEvents: false
      }}).createWindow()
    , $ = require('jquery').create(window);

  w.on('data', function(data) {
    process.stdout.write(data);
  });
  
  // Declare the elements and attributes up-front
  var ns      = w.declareNamespace('http://www.w3.org/2005/Atom', '')
    , feed    = w.declareElement(ns, 'feed')
    , title   = w.declareElement(ns, 'title')
    , link    = w.declareElement(ns, 'link')
    , updated = w.declareElement(ns, 'updated')
    , author  = w.declareElement(ns, 'author')
    , name    = w.declareElement(ns, 'name')
    , id      = w.declareElement(ns, 'id')
    , entry   = w.declareElement(ns, 'entry')
    , summary = w.declareElement(ns, 'summary')

    // Attributes
    , href    = w.declareAttribute('href');

  var updatedDate = ISODateString(new Date());
  // This is not a processing instruction and as such can be generated by Genx
  process.stdout.write("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
  // Write out the start of the document
  w.startDocument()
    .startElement(feed)
      .startElement(title).addText("Genx Example Feed").endElement()
      .startElement(link).addAttribute(href, "https://github.com/wezm/node-genx").endElement()
      .startElement(updated).addText(updatedDate).endElement()
      .startElement(author)
        .startElement(name).addText("Wesley Moore").endElement()
      .endElement()
      .startElement(id).addText("urn:uuid:" + uuid()).endElement();

    // Remove the green URLs from the result, don't want it in the description
    $('#ires ol li .s .f').remove();
    
    // Loop over each result
    $("#ires ol li").each(function(i, li) {
      var result = {
        title: $('h3.r a', li).text(),
        href: $('h3.r a', li).attr('href'),
        description: $('#ires ol li .s').text()
      };

      // start each document on a new line
      w.addText("\n")
      .startElement(entry)
        .startElement(title).addText(result.title).endElement()
        .startElement(link).addAttribute(href, result.href).endElement()
        .startElement(id).addText("urn:uuid:" + uuid()).endElement()
        .startElement(updated).addText(updatedDate).endElement()
        .startElement(summary).addText(result.description).endElement()
      .endElement()
    });
  
    w.addText("\n")
    .endElement()
  .endDocument();
}

// Make the request and when finished generate the XML
// http://www.google.com/search?q=node.js+xml
var google = http.createClient(80, 'www.google.com');
var query = qs.stringify({
  q: "node.js xml",
  ie: 'UTF-8',
  oe: 'UTF-8'
});
var request = google.request(
  'GET',
  '/search?' + query,
  {'host': 'www.google.com'}
);
request.end();

request.on('response', function (response) {
  if (response.statusCode != 200) {
    console.log("Error: Unexpected response code " + response.statusCode);
    return; // Would be nice to abort the request here
  }

  var body = '';
  response.setEncoding('utf8');
  response.on('data', function (chunk) {
    body += chunk;
  });

  response.on('end', function() {
    generateXml(body);
  });
});