gistfile1.js

/* Library Code */

(function(global, $) {

function Wordpress(url) {
  this.init(url);
}

Wordpress.prototype = {

  init: function(url) {
    this.endpoint = url;
  },

  getCategories: function(cb) {
    $.getJSON(this.endpoint + '?cb=?&json=get_category_index', function(response) {
      cb.call(global, response);
    });
  },

  getPosts: function(cb, slug, count) {
    var count = count || 10,
        url = slug ? 'json=get_category_posts&slug=' + slug + '&count=' + count : 'json=get_recent_posts&count=' + count;
  
    $.getJSON(this.endpoint + '?cb=?&' + url, function(response) {
      cb.call(global, response);
    });
  }
}

global.Wordpress = Wordpress;

})(this, jQuery);


/* Example Use */

var wordpress = new Wordpress('http://wordpress_url');

// Get categories
wordpress.getCategories(function(response) {
  $.each(response.categories, function(i, el) {
    //TODO draw HTML
  })
})

//Get latest posts
wordpress.getPosts(function(response) {
  $.each(response.posts, function(i, el) {
    //TODO draw HTML
  });
});

//Get posts in category-1
wordpress.getPosts(function(response) {
  $.each(response.posts, function(i, el) {
    //TODO draw HTML
  });
}, 'category-1');

//Get top 20 latest posts
wordpress.getPosts(function(response) {
  $.each(response.posts, function(i, el) {
    //TODO draw HTML
  });
}, null, 20);