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Beyond the Theme - Using WordPress as an API
 

Beyond the Theme - Using WordPress as an API

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WordCamp Chicago 2011 slides for session

WordCamp Chicago 2011 slides for session

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    Beyond the Theme - Using WordPress as an API Beyond the Theme - Using WordPress as an API Presentation Transcript

    • Beyond the Theme
      Using WordPress as an API
    • About Me
      Find me on online at:
      @davidscottufts
      facebook.com/davidscottufts
      linkedin.com/in/davidtufts
      davidscotttufts.com
      I’m not a WordPress guru, ninja, black-belt, author, blogger, consultant, or hacker
      I do use WordPress everywhere
    • One Year of WordPress at Work
      Migrated 14 unique brand sites and over 40 unique domains in 7 languages to WordPress multi-site
      Our most popular brand’s average page views increased from 85,000 to 150,000 (over 130,000 daily emails, over 45,000 iPhone/iPad apps, and over 65,000 Facebook fans)
      Our online donations increased by 38%
      Reduced server footprint by 40% and our overhead costs decreased by 30%
      Development time, costs, and learning curve for new developers were also all significantly reduced
    • Goals of a WordPress Based Web Strategy
      Have one install for multiple sites
      Allow for a single sign-on across a network of sites
      Use an API to allow for content to be easily accessible by other websites and mobile devices
      Integrate web, social, mobile, social bookmarking, and monetization strategies
      Aggregate and curate content from across the network of sites in one central stream
      Think globally—location and language matter
    • Why WordPress
      It met the conditions of our web strategy
      It has multi-site capabilities
      It is open source (FREE)
      It is easy to migrate to
      It is easy to use
      It is easy to install and upgrade
      It is popular (15% of the web runs on WordPress)
      It is versatile
    • Versatile you say?
      Extend it with themes and plugins
      Modify it with hooks
      Create custom post types
      Add custom fields
      Use custom taxonomies
      Specify post formats
    • An Analogy—Part 1
      The WordPress admin area is like a kitchen and you are the chef
      The WordPress plugins are like the kitchen appliances that make for a better cooking experience
      The WordPress theme is like the dining room where the content is laid out for consumption
      There is a one-to-one relationship between your content and its container, the theme
    • Content vs. Container
      A WordPress theme exists only within the context of its container—the web browser
      Your content is consumed from within your website’s theme
      Your RSS feed is the only way in which your content can be consumed from outside your website’s theme
    • How Do People Find Your Site
      Search engines index your content
      Searches point people to your site
      Users subscribe to your RSS feed
      Friends might link to your site
      Anyone can share your content on social networks
    • Your Websites Current Sphere of Influence
    • Introduction to APIs
      “An API (Application Programming Interface) is a way for two applications to talk to each other in a common language that both systems understand. An API essentially provides a structured way for applications to get content in a predictable, flexible, and powerful way.”
    • Does WordPress have an API?
      WordPress has XML-RPC for data management at the admin level
      WordPress has multiple built-in APIs that allow developers to enhance WordPress through plugins and themes
      WordPress has a robust query string that enables content filtering through the URL
      WordPress has no end user API that allows for third-party development around your content
    • What Can an API do for You?
      Allows you to have a single instance of your content and users distributed across multiple channels
      Allows developers to build third-party applications around your web-based content or service
      Allows you to enhance the user experience within the context of your site by building an AJAX rich application
    • Separating Content from Container
      WordPress separates the admin and plugins from the theme
      It allows for the content to exist independently of the website’s theme
      Modifying a site’s theme does not impact your content
    • An Analogy—Part 2
      Same kitchen, chef, appliances, and dining room as the earlier analogy
      An API turns your kitchen into a catering business with delivery trucks
      There is a one-to-many relationship between your content and multiple containers: mobile apps, third-party websites, and social networks
    • Adding an API to WordPress Expands Your Sphere of Influence
    • 3 Simple Steps to Implementing an API into Your Next WordPress Theme
      Pass additional query string parameters to the theme
      Modify the theme to process API calls
      Determine what format to return the content in
    • Step 1: Pass Additional Query String Parameters to the Theme
      Define a query string parameter to specify whether or not the request being made is an API call. Always default the parameter to false in the theme as to not disrupt non API requests (?api=true)
      Define a query string parameter to specify in what format to return the content (&format=json)
    • Step 2: Modify the Theme to Process API Calls
      <?php
      $api = $_GET[‘api’];
      $f = $_GET[‘format’];
      Section off the header and footer with conditional statements within files like index.php, single.php, archive.php, category.php, tag.php, and search.php
      Evaluate based on the query string parameters if an API call needs the header and footer
      If ( $api ) {
      // Conditional Header
      }
      // The Loop
      get_template_part(‘loop’, $f);
      If ( $api ) {
      // Conditional Footer
      }
      ?>
    • Step 3: Determine What Format to Return the Content In
      Create a series of loops in different formats to handle your custom API requests: loop-html5.php, loop-json.php, loop-xml.php
      Allow the get_template_part() function to determine the appropriate format to use:get_template_part(‘loop’, $_GET[‘format’]);
    • Example
      You have built an events management WordPress theme using custom post types for events, sessions, speakers, attendees, and venues.
      Now your conference attendees want to use their smart phones or tablets during an event to manage their schedules, rate sessions, etc.
    • Allowing for Third-Party Development
      Every new “app” is just another instance of a group of your users interacting with your content or service
      Twitter would not be were it is today without an API which allows users and developers to interact with Twitter’s services on their terms
    • Post Rank vs. Page Rank
      The tide is changing from searchability to shareability
      SEO is still be important, but what is more important is how accessible and shareable your content is from multiple devices, apps, and social networks
    • Other API Implementation Ideas
      Use the API calls for AJAX reloading from within the context of the WordPress theme
      Use in conjunction with other query string parameters to determine the post type, posts per page, sort order, etc.
      Be sure to output the correct headers to the browser in the cases where the requested formats are like JSON, XML, or downloadable files
    • Write It Yourself or Use KickPress
      The KickPressplugingives WordPress a public API for content distribution across multiple platforms and devices
      Makes creating and using custom posts types and taxonomies easy
      Focuses heavily on the publishing of a wide variety of content types (videos, books, events, reviews, authors, contacts, etc.)
      Enables strong social media integration through a urlshortner, social sharing links, and a social sharing toolbar
      Enables content aggregation from across the web into a local news feed
      Enables content bookmarking by logged-in users
      Extends WordPress through hooks, themes, and plugins, without the need to modify the core source code and/or database tables
    • WP + API = { }
      Beta release coming soon: http://kickpress.org/getting-started/