Yahoo APIs For Mobile: Content, Location and Context - OverTheAir 2009

using Yahoo! APIs for the mobile web: content, location and context ricardo varela ricardov@yahoo-inc.com http://twitter.com/phobeo overtheair09 London, 25th sept 2009

the age of mobile is nigh! (no, really...) iphone, android, mobile 2.0, mobile services, ubiquitous experience, j2me, micropayments, widget, app store, personalization, SDK , location-based services, ecosystems, mobile porn, data plans, cloud data, customer loyalty, mobile marketing, w3c MWI, pay through phone, message-based services, mobile-ﬁrst experience, femtocells, global reach, music downloads, mobile convergence buzzwords selected on purpose to beat the keyword bingo! img by David Malcomson

but... what does mobile mean? mobile is not just a smaller screen information where you need it things you can do only now img from bestadsontv.com

what works in mobile? data from all about the iphone, comscore mobile study and apple store

trying to summarize it in some way... content location and context

and what does yahoo have to do with this? we have been playing mobile for long http://mobile.yahoo.com but that’s not all!

the yahoo developer network http://developer.yahoo.com

content ﬁnance, hotjobs, upcoming, local, weather, ﬂickr, music, answers, search make your own: hadoop, pig

example: wassup!

but we always end up mixing services $myurl = sprintf('http://api.flickr.com/services/rest/? method=flickr.photos.search&per_page=%d&bbox=%s&api_key=%s&page=%d&tags=%s', $maxPerPage, $bbox, FLICKR_API_KEY, $page, TAGS); $xml_doc = DOMDocument::load($xml); $xpath = new DOMXPath($xml_doc); $result = $xpath->query("//rsp/photos/photo"); foreach($result as $item){ $photo_id = $item->getAttribute('id'); $infourl = sprintf('http://api.flickr.com/services/rest/? method=flickr.photos.getInfo&api_key=%s&photo_id=%s', FLICKR_API_KEY, $id); $info_doc = DOMDocument::load($infourl); $xpath_info = new DOMXPath($info_doc); $image_url = $xpath_info->query("//urls/url"); // insert more processing here... }

content: YQL, the swiss army knife of data select * from internet offers simple access to all of services from yahoo... ... or from outside (http://www.datatables.org/)

so that we end up with this... select urls.url from flickr.photos.info where photo_id in ( select id from flickr.photos.search where text="tate modern") imgs from housemouse and wellsoitappears on twitter

or other similar cases... select title,abstract,url from search.news where query="iphone" select * from local.search where query="sushi" and location="san francisco, ca" and Rating.AverageRating>4.0 select name, website from music.artist.similar where id in (select id from music.artist.popular)

and it is also good for scraping... select src from html where url in (“http://icanhascheezburger.com/?s=phone”, “http://failblog.org/?s=phone”) and xpath=”//div[@class=’entry’]/div/div/p/img” use "http://phobeo.com/hacks/yql/tables/ cineworld.cinemasearch.xml" as cinemas; select * from cinemas where nearlocation="wc2h" select * from microformats where url="http://upcoming.yahoo.com/event/4165902/"

and has widgety goodness Use server side... YQL_IMG_EXTRACT = "http://query.yahooapis.com/v1/public/yql? q=select%20*%20from%20html%20where%20url%3D'{URL}'%20and %20xpath%3D'%2F%2Fbody%5B%40id%3D%22noticias%22%5D%2Fdiv%5B %40id%3D%22wrapper%22%5D%2Fdiv%5B2%5D%2F%2Fimg%5B%40title %5D'%20limit%203&format=json" def images url = YQL_IMG_EXTRACT.gsub(/{URL}/, CGI.escape(self.url)) results = JSON.parse(open(url).read)['query']['results']

and has widgety goodness ...or straight from the client! function get() { var old = document.getElementById('triggerscript'); if(old){ old.parentNode.removeChild(old); } var where = document.getElementById('loc').value; var url='http://query.yahooapis.com/v1/public/yql?q=select%20*%20from %20upcoming.events(100)%20where%20woeid%20in%20(select%20woeid%20from%20geo.places %20where%20text%3D%22'+encodeURIComponent(where)+'%22)%20limit%20'+count+'%20offset %20'+offset+'%20%7C%20sort(field%3D%22start_date %22)&format=json&callback=displayResult'; var s = document.createElement('script'); s.setAttribute('id','triggerscript'); s.setAttribute('src',url); document.getElementsByTagName('head')[0].appendChild(s); return false; }

there’s also location maps, placemaker, ﬁreeagle

again, we could use those from yql // check for geo references SELECT * FROM geo.placemaker WHERE documentContent = "First we take Manhattan, and then we take Berlin" AND documentType="text/plain" // geolocate all places in a page and give me the maps... select * from maps.map where (latitude, longitude) IN (SELECT match.place.centroid.latitude, match.place.centroid.longitude FROM geo.placemaker WHERE documentURL = "http://news.bbc.co.uk/1/hi/world/middle_east/8274262.stm" AND documentType="text/html") // combine place names with a text search for adding “location search” select * from nestoria.search where price_max=1000 and bedroom_min = 1 and listing_type="rent" and place_name in ( select name from geo.places.neighbors where neighbor_woeid in ( select woeid from geo.places where text="pimlico, uk" limit 1 ) limit 3 )

with the exception of ﬁreeagle (for now...) also, a comment on auth modes (app or mobile auth should work just ﬁne)

and ﬁnally, context... there’s more context than just location contacts, address book, social directory, boss keywords

example: trendnews

example: trendnews trending topic “Les Paul” http://www.rtve.es/noticias/20090813/fallece-a-los-anos-guitarrista- estadounidense-les-paul/288969.shtml select * from search.web where sites="http://www.rtve.es/noticias/20090813/ fallece-a-los-anos-guitarrista-estadounidense-les-paul/ 288969.shtml" and view="keyterms" and query="les paul"

and for more... http://developer.yahoo.com

so get on hacking... we have some nice present full of caffeinated goodness for the best hack using Yahoo! APIs for details on how to send yours, check the overtheair.org site!

and let us know if we can lend a hand! YDN forums http://developer.yahoo.com/forum The Y! guys (located around bean bag area)

thank you! ricardo varela ricardov@yahoo-inc.com http://twitter.com/phobeo

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Yahoo APIs For Mobile: Content, Location and Context - OverTheAir 2009

by Ricardo Varela on Sep 28, 2009

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Yahoo APIs For Mobile: Content, Location and Context - OverTheAir 2009 — Presentation Transcript