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Web Apps for the Masses


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Using WordPress to develop Web Apps, and adding an API to WordPress

Published in: Technology
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Web Apps for the Masses

  1. 1. Web Apps for the Masses Photo by razorray15
  2. 2. About Me• Born and raised in Brazil• Live in Grand Rapids, Michigan• 1 beautiful wife• 6 great kids (5 boys and 1 girl)• Co-founder at Rocketwood• Web Producer at RBC Ministries• Developing KickPress, a WordPress plugin
  3. 3. The Sweet Smell of SuccessIn under 2 years with WordPress on• From 2.1 million to 5 million page views per month• From 0 to 140,000 subscribers to daily email• From 0 to 100,000 mobile app sales• From 0 to 90,000 Facebook fans• Web donations increased 50%+• 40% less hardware• 30% savings Graph by Francesco Schwarz
  4. 4. We are the 15.7% Photo by Tim Wilson
  5. 5. WordPress Evolution 1. Blog 2. Multi-User 3. Custom Post Types 4. CMS 5. What’s next? Illustration by Rob Green
  6. 6. Popular Web Apps
  7. 7. Features of Web Apps  Offer a service  Safe-keeping of your personal data  Access to your personal data through an API  Roles and permissions for controlled and/or restricted access
  8. 8. They own your data! Photo by Rob Young
  9. 9. WordPress Web Apps
  10. 10. With no API, users are limited in how the can access their data Illustration by Eric Tufts
  11. 11. Separating contentfrom presentation Illustration by Eric Tufts
  12. 12. Illustration by Eric Tufts
  13. 13. No WordPresscore files ordatabase tableswere harmed inthe productionof this plugin Photo by Sarah Fleming
  14. 14. KickPress allows for easy CustomPost Type management• Create new post types• Assign Roles and Capabilities per post type• Manage custom workflows• Extend post types with modulesCustom Post Types Photo by Brad Coy
  15. 15. Advanced custom post type management
  16. 16. Advanced roles and capabilities for managing user permissions
  17. 17. 3 kinds of API requests to the server1. // Request for a full page from the theme kickpress_is_fullpage();2. // Request for a page fragment via Ajax kickpress_is_ajax();3. // Remote API request or action kickpress_is_remote_api();
  18. 18. 1. Full Page Requests
  19. 19. Triggering the KickPress APIAPI Parameters are appended to the endof the standard WordPress permalinks:{site}.com/how-to/ {Archive page for custom post type called “How To”}{site}.com/how-to/api/add/{site}.com/how-to/api/save/{site}.com/how-to/using-powerpoint/api/edit/More Examples:{site}.com/2012/02/18/wordcamp/api/edit/{site}.com/2012/02/18/wordcamp/api/save/{site}.com/2012/02/18/wordcamp/api/delete/{site}.com/2012/02/18/wordcamp/api/bookmark/{site}.com/2012/02/18/wordcamp/api/add_term[category]/featured/
  20. 20. 2. Ajax Requests
  21. 21. Theme ModificationsAdd an extra conditional commentto the top of these theme files: header.php footer.php sidebar.php<?php if ( kickpress_is_ajax() ) { return; }?>
  22. 22. Theme ModificationsAdd a conditional blocks for any code thatshould be ignored on AJAX requests:<?php get_header(); ?><?php if ( kickpress_is_fullpage() ) : ?> <div id="content-wrapper"><?php endif; ?><?php $post_type = get_post_type(); ?><?php get_template_part( loop, $post_type ); ?><?php $args = array( post_type, $post_type );<?php kickpress_ajax_reload( $args, content-wrapper‘ ); ?><?php kickpress_is_fullpage( </div>‘ ); ?><?php get_sidebar(); ?><?php get_footer(); ?>
  23. 23. 3. Remote API Requests
  24. 24. Authentication Every registered user is assigned a “token” and a “secret” to be used in generating signatures for making ReSTful OAuth style API calls to the Web App. Photo by Jon Worth
  25. 25. Authentication credentials areavailable on the user’s profile page
  26. 26. $token = {token-from-profile-page};$secret = {secret-from-profile-page};$timestamp = time();$method = GET;$host = www.{your domain}.com;// Create the string to sign$string_to_sign = $method . "n" . $host . "n" . $timestamp . "n";// Calculate signature with SHA1 and base64-encoding$signature = base64_encode( hash_hmac( sha1, $string_to_sign, $secret, true ));$authentication_params = array( signature => $signature, timestamp => $timestamp, token => $token);// Normalize the query string parameters$query_parts = normalized_query_parameters( $authentication_params );$query_string = implode(&, $query_parts);// Build the URL for the remote API request$url = http:// . $host . /{post type}/api/{action}/? . $query_string; For more information:
  27. 27. API Serialized Response{ "status":"success", "messages":{ "note":"Term Added" }, "data":{ "terms":[{ "term_id":"7", "name":"Featured", "slug":"featured", "taxonomy":"category", "count":"26" }] }}
  28. 28. Use KickPress to Buildyour next Web App in WordPress
  29. 29. The Beginning