2. About Me My Name is Joel Strellner I go by @jstrellner on Twitter I’ve been developing things using the Twitter API’s since March, 2008. Twitturly ( http://twitturly.com ) inView ( http://myinview.com )

3. What is an API? An API is a way for any service to allow any other service to programmatically access and interact with that services data.

4. What API’s does Twitter offer? Twitter currently offers 3 API’s: REST API REST Search API (previously Summize) Streaming API Depreciated API’s Data Mining Feed XMPP Feed

5. REST API The REST API is the primary API. Used for: Authentication OAuth Basic Auth (depreciated, use OAuth) Posting Tweets Getting your timeline (Tweets from those you follow) Getting your Mentions

6. Search API Supports all of the same advanced search options that you can do on search.twitter.com Get trending topics by day, week or current Allows you to consume it in atom and json formats Supports fuzzy geolocation filtering Uses *different* user ID’s than the REST API Will be eventually the same (V2 of the API’s)

7. Streaming API Methods for the Public Stream: Firehose (Not available to most) Gardenhose (large portion of Firehose) Spritzer (small portion of the Firehose) Following Specific Users/Terms Birddog / Shadow / Follow must start with @user or have “in_reply_to” for that user Allows you to follow 200k, 50k or 200 users, respectively Track Allows you to get any tweet matching a keyword Does not support phrases

8. What’s being built? Seesmic Desktop ( http://seesmic.com/ ) Uses the REST API Uses the Search API Twitalizer ( http://twitalyzer.com ) Uses the Search API (might use the REST API too) inView ( http://myinview.com ) Uses the streaming API Your App?

9. What’s Coming Next? Geolocation data in each Tweet Retweeting (formally)

10. How do you actually talk to the API? PHP (getting a users timeline): <?php $ch = curl_init(); curl_setopt ($ch, CURLOPT_URL, ‘http://twitter.com/statuses/user_timeline/jstrellner.xml’); curl_setopt ($ch, CURLOPT_USERAGENT, 'Twitturly / v0.6'); curl_setopt ($ch, CURLOPT_HEADER, 0); curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1); curl_setopt ($ch, CURLOPT_MAXREDIRS, 10); curl_setopt ($ch, CURLOPT_FAILONERROR, 0); curl_setopt ($ch, CURLOPT_NOSIGNAL, 1); curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, 30); curl_setopt ($ch, CURLOPT_TIMEOUT, 60); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_USERPWD, $username . ':' . $password); $result = curl_exec($ch); curl_close ($ch); ?> $result now has your response.

11. ( XML Response )

12. How to send a tweet (Basic Auth) PHP: <?php $msg = ‘this is an example tweet.’; $curl_handle = curl_init(); curl_setopt($curl_handle, CURLOPT_URL, "http:twitter.com/statuses/update.json"); curl_setopt($curl_handle, CURLOPT_CONNECTTIMEOUT, 30); curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER, 1); curl_setopt($curl_handle, CURLOPT_POST, 1); curl_setopt($curl_handle, CURLOPT_POSTFIELDS, "status=" . urlencode($msg)); curl_setopt($curl_handle, CURLOPT_USERPWD, "$twitter_username:$twitter_password"); $buffer = curl_exec($curl_handle); curl_close($curl_handle); ?> $buffer now has your response.

13. Q&A Any questions, or comments? Feel free to tweet your question using the #tmeetuphashtag.

14. Resources Twitter API Documentation http://apiwiki.twitter.com/Twitter-API-Documentation Twitter Streaming API Documentation http://apiwiki.twitter.com/Streaming-API-Documentation Ask any API Question http://groups.google.com/group/twitter-development-talk