FBML - Facebook Markup Language

Slide 1: FBML - Facebook Markup Language Joseph Scott joseph@randomnetworks.com

Slide 2: FBML Subset of HTML br, div, h1, li, pre, span, etc Facebook specific tags fb:create-button, fb:dashboard, fb:error, fb:message, fb:name, etc

Slide 3: FBML Extras Forms will get hidden fields fb_sig_profile, fb_sig_user, fb_sig_session_key, fb_sig_time, fb_sig src attribute of image tags will change Facebook requests the image and points the src to their own servers CSS Referencing external CSS not allowed Every rule gets prefixed with appxxxxx_

Slide 4: Javascript Hasn’t been allowed until very recently FBJS, their no iframe answer Prefixes variables, functions with axxxxxx_ Still beta, likely to change Security is still unclear

Slide 5: Where To Use FBML Applications that use the canvas User profile Mini-feed News feed Notifications Others?

Slide 6: Canvas Applications Easy native Facebook look for your applications Short cuts for various page components

Slide 7: Mini-feed Gotchas Title is required, limited to 60 characters Max of 1 a tag, fb:userlink and fb:name Limited to 10 feed items per application, rolling 48 hours May or may not show up in friends News feed http://developers.facebook.com/ documentation.php? v=1.0&method=feed.publishActionOfUser

Slide 8: News Feed Gotchas Title is required, limited to 60 characters 1 a tag allowed, no others Body limited to 200 characters Allows a, b and i tags Limited to 1 News feed item per user every 12 hours http://developers.facebook.com/ documentation.php? v=1.0&method=feed.publishStoryToUser

Slide 9: Resources http://developers.facebook.com/ documentation.php?doc=fbml http://wiki.developers.facebook.com/ http://www.facebook.com/board.php? uid=2205007948 #facebook on irc.freenode.net