PHP, OAuth, Web Services and YQL
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PHP, OAuth, Web Services and YQL

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Slides from a presentation (at YDN Tuesdays) on how to use YQL using OAuth, CodeIgniter (PHP MVC framework) and external web services. To get the code mentioned in this presentation go to......

Slides from a presentation (at YDN Tuesdays) on how to use YQL using OAuth, CodeIgniter (PHP MVC framework) and external web services. To get the code mentioned in this presentation go to http://github.com/kulor/yql_php/tree

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Transcript

  • 1. PHP, OAuth & Web Services By James Broad
  • 2. You will learn • How to authenticate a request using OAuth • How to use a PHP framework - CodeIgniter • How to retrieve web services using YQL
  • 3. Technologies covered • SVN • rsync • PHP • CodeIgniter
  • 4. Project : Search • Search a number of services using their Web Service API’s • Twitter • Flickr • Yahoo Search • Wikipedia
  • 5. YQL Yahoo Query Language
  • 6. YQL Console http://developer.yahoo.com/yql/console/
  • 7. SWEET! Now how do I make use of it?
  • 8. Copy the generated URL and go
  • 9. Nope. Soz, you need authentication In the flavour of OAuth
  • 10. What is OAuth? I will attempt to explain
  • 11. The problem http://www.flickr.com/photos/fabricio/2354662901/ http://www.flickr.com/photos/borkazoid/3219646418/ • http://adactio.com/journal/1357
  • 12. One Solution - OAuth
  • 13. OAuth Flow
  • 14. Demonstration • Manual 3 Leg OAuth process • http://carbonsilk.com/oauth/example/ client.php • Our example uses 2 Leg - no need for the user to leave the page but we only get access to public information.
  • 15. Getting Started • Getting our development environment set up • Obtaining our application keys • Covering the PHP code needed to run our application
  • 16. Development Environment • XAMPP - http://www.apachefriends.org/en/ xampp.html • CodeIgniter Framework • OAuth Library • CodeIgniter OAuth Classes
  • 17. Installing CodeIgniter svn checkout http://dev.ellislab.com/svn/CodeIgniter/trunk ~/ Sites/project_search
  • 18. Configuring CodeIgniter • Check it works http://localhost/ project_search/ • Can we have pretty URLs? Please? • change system/applications/config/config.php • $config['index_page'] = quot;quot;; • Add .htaccess file
  • 19. OAuth PHP Library • svn co http://oauth.googlecode.com/svn/ code/php ~/Sites/oauth/ • Copy OAuth.php to CodeIgniter Library - system/applications/libraries/ • Change line 369 of OAuth.php - Realm bug. Add realm as a parameter
  • 20. YQL / OAuth Classes I have been nice enough to pre-bake some classes for you
  • 21. YQL / OAuth Classes • system/application/libraries/yql_lib.php • Copy & Paste from http://gist.github.com/ 57536 • system/application/controllers/yql.php • Copy & Paste from http://gist.github.com/ 57535
  • 22. Obtaining Application Keys • Go to https://developer.yahoo.com/ dashboard/ and register a new OAuth application • One I made earlier: https:// developer.yahoo.com/dashboard/ success.html?key=xxx
  • 23. Configuring Our App • Open system/application/libraries/yql_lib.php • Add your OAuth key and secret
  • 24. Upload • We need to upload to the domain registered earlier for authentication • rsync -r --progress ~/Sites/project_search/ you@yoursite.com:~/public_html/ project_search/
  • 25. Review our framework code We look behind what has been installed - The CodeIgniter Libraries and controllers
  • 26. Live Code Time Adding a new query - Scraping the Finance news top stories and presenting them using a view and a controller
  • 27. Thanks! twitter.com/kulor carbonsilk.com