getBlogPosts.coffee

### Getting entries from my blog (Posterous)
getBlogPosts = ->
  req = $.ajax 'http://query.yahooapis.com/v1/public/yql',
    jsonp:'callback'
    dataType:'jsonp'
    data:
      q: "select channel.item.title, channel.item.pubDate,
         channel.item.link from xml where
         url = 'http://blog.jrmoran.com/rss' limit 6"
      format: 'json'

  req.success (res) -> 
    if res.query.count > 0
 
      # comprehension will iterate over each entry, parse them to html
      # and add them to the array `htmlstr`
      htmlstr = for post in res.query.results.rss
        item = post.channel.item
        date = item.pubDate.substring 0,16
        "<li>
          <a href = ' #{ item.link } '> #{ item.title} </a><br>
          <span class = 'date' > #{ date } </span>
         </li>"

      $('#recent-posts').append htmlstr.join('')

getBlogPostsv2.coffee

### Getting entries from my blog (Octopress)
  # `targetNode` is a jQuery object
  loadBlogPosts: (targetNode)->

    # return an html string representation of an entry
    renderEntry= (entry)->
      "<li>
        <a href = ' #{ entry.url } '> #{ entry.title} </a><br>
        <span class = 'date' > #{ entry.date } </span>
       </li>"

    # Retrieving posts from My blog using YQL
    #
    # * `callback` used by YQL to reference the callback function
    # * `JSONP` for cross-domain request
    # * `q`  YQL query 
    #
    req = $.ajax 'http://query.yahooapis.com/v1/public/yql',
      jsonp:'callback'
      dataType:'jsonp'
      data:
        q: "select entry.title.content, entry.link, entry.updated from xml where
            url = 'http://blog.jrmoran.com/atom.xml' limit 6"
        format: 'json'

    # Processing response
    req.success (data) -> 
      if data.query.count > 0

        # comprehension will iterate over each entry, parse them to html
        # and add them to the array `htmlstr`
        htmlstr = for result in data.query.results.feed
                    renderEntry
                      url  : result.entry.link.href
                      title: result.entry.title
                      date : result.entry.updated.substring 0, 10

        targetNode.append htmlstr.join ''

posterous-yql.js

// Retrieving posts from My blog using YQL
// @requires jQuery 1.5.1
var req = $.ajax('http://query.yahooapis.com/v1/public/yql', {
    // YQL uses this parameter to reference the callback function
    jsonp:'callback',
    // This is a cross-domain request so JSONP must be used
    dataType:'jsonp',
    data: {
        // this is the actual YQL query and the format of the response
        q: "select channel.item.title, channel.item.pubDate, " +
           "channel.item.link from xml where " +
           "url = 'http://blog.jrmoran.com/rss' limit 5",
        format: 'json'
    }
});

// Working with the response 
req.success(function(res){
    //work with the response here
});