technical introduction to ydn

A Tech intro to YDN

Christian Heilmann, Grenoble, December 2008

http://scriptingenabled.org | http://wait-till-i.com | http://twitter.com/codepo8

The Yahoo Developer Network is the central source of everything Yahoo does to

make developers happy!

http://developer.yahoo.com/

I am now going to talk about just a few things we offer

there.

We have Web Services and APIS for almost all our offers.

They all work pretty similar:

First, get an AppID!

https://developer.yahoo.com/wsregapp/

Construct a REST call:http://answers.yahooapis.com/

AnswersService/

Construct a REST call:http://answers.yahooapis.com/

AnswersService/V1/

Construct a REST call:http://answers.yahooapis.com/

AnswersService/V1/questionSearch?

Construct a REST call:http://answers.yahooapis.com/

AnswersService/V1/questionSearch?query=asterix

Construct a REST call:http://answers.yahooapis.com/

AnswersService/V1/questionSearch?query=asterix&region=fr&lang=fr

Construct a REST call:http://answers.yahooapis.com/

AnswersService/V1/questionSearch?query=asterix&region=fr&lang=fr&a

ppid={yourappid}

Output formats:

XML, RSS, JSON, PHP

What if you need to mix and match and filter data?

https://pipes.yahoo.com/

https://pipes.yahoo.com/

http://developer.yahoo.com/yql/console/

Getting the data is one step.

Displaying it in a manner useful for end users another.

This is why we share what worked for us with you.

http://developer.yahoo.com/ypatterns

And we have a framework of HTML/CSS that works for us

and can be used by you.

Front Page Yahoo! Search Flickr

My Yahoo Yahoo Search for iPhone/Mobile

Upcoming

Yahoo Sports Yahoo/Eurosport Delicious

Yahoo News Yahoo Maps Yahoo Live

Yahoo Finance Yahoo Local Yahoo Pipes

Yahoo Mail SDS Shine

Metro (Next Home Page)

Yahoo Bugzilla Yahoo Buzz

YAP Yahoo Answers HotJobs

http://developer.yahoo.com/yui/

http://yuiblog.com

http://developer.yahoo.com/yui/grids/builder/

http://ui.jquery.com/

http://ui.jquery.com

(function() { var myConfig = { height: '300px', width: '600px', dompath: true, focusAtStart: true }; var myEditor = new YAHOO.widget.SimpleEditor('editor', myConfig); myEditor.render();})();

Cool, but isn’t using other people’s stuff a lot of extra code and slows you down?

Exceptional Performance Tips:http://developer.yahoo.com/performance/

http://developer.yahoo.com/yslow/

What if someone asks you to build a specialist search?

You could buy databases and build an interface and get

servers to host and index the search...

Or you could use BOSS.

http://developer.yahoo.com/search/boss/

http://icant.co.uk/sandbox/unsafe.html

http://veosearch.com

Say you want to help your clients find good keywords to promote their product online.

You can do some research, surf all the competitors’ sites

and note down the descriptions, keywords and

titles.

Or you can keep your eyes open and check if there is an

API for that.

http://boss.yahooapis.com/ysearch/web/v1/donkeys?format=xml&appid=...

http://boss.yahooapis.com/ysearch/web/v1/donkeys?format=xml&view=keyterms&appid=...

All you need to do is getting the top 20, analyzing the keyword frequency and

create a top 20.

http://developer.yahoo.net/blog/archives/2008/11/boss_keywords.html

Then you take YUI CSS grids, and spend 30 minutes playing

with colours and fonts.

And you have a product:

http://keywordfinder.org

Flickr is another classic case of improving a product.

http://www.flickr.com/photos/tags/grenoble/

Cliquez ici, SVP!

http://api.flickr.com/services/feeds/photos_public.gne?tags=grenoble&lang=fr-

fr&format=atom

http://api.flickr.com/services/feeds/photos_public.gne?tags=grenoble&lang=fr-

fr&format=json

http://api.flickr.com/services/feeds/photos_public.gne?tags=grenoble&lang=fr-

fr&format=json&jsoncallback=voila

Christian Heilmann

http://scriptingenabled.org | http://wait-till-i.com

twitter/flickr: codepo8

THANKS!