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Welcome to YSDN

February 28, 2005

The Yahoo! Search Developer Network is the place to find everything you need to develop applications that use our search web services. This includes documentation, FAQs, public mailing lists, weblog, a Wiki, and a BSD licensed SDK to help get you started.

We'll be using this weblog to post YSDN updates, highlight interesting applications we hear about, and so on. If you'd like to send us feedback or suggest a topic for a weblog post, feel free to e-mail us.

In the meantime, get yourself an App ID, check out the documentation, and grab a copy of the SDK to get started coding.

If you end up building something cool, post a description and a link to your website in the wiki.

See also: The announcement on the Yahoo! Search blog

Paul Bausch, author of the forthcoming Yahoo Hacks book, has posted a good introduction on the O'Reilly Network: Yahoo! Web Services

Jeremy Zawodny
Yahoo! Search Web Services Team

Posted at February 28, 2005 11:59 PM

rss     Add to My! Yahoo

Comments

Why do you not have a .NET version with the sdk? Do i need to write it for you? It would not take but a day to port it from any of the languages you have it currently written in. I love .NET, perl, and php, but .NET is becoming the best architecture on windows and linux with mono.net. Lets get er done.

Posted by: Jim Zimmerman at February 28, 2005 10:44 PM

Slight slip up - a blog without a working RSS feed. I'm sure you can fix that quickly.

Posted by: zmarties at February 28, 2005 11:56 PM

excelent! so useful to me! when will it be lanched?

Posted by: zhaozhen at March 1, 2005 12:11 AM

Congrats guys - looks like some really promising stuff here. Just one question, how come you don't have an "Add to My Yahoo!" button :)?

Posted by: Robi at March 1, 2005 12:44 AM

Great work, and with 5 times the allowed query count than Google I applaud the Yahoo team.

Posted by: Steven Hartwright at March 1, 2005 1:17 AM

Great dev site, keep up the good work Yahoo! ;-)

Thanks, n3td3v

Posted by: n3td3v at March 1, 2005 4:14 AM

You could expand your horizons by adding documentation for Yahoo! Messenger IMV's

Its a whole new scope to add to the dev site, but a worthy one, because lots use IMV's to search the Yahoo Search engine., and developers can make some mods!

Thanks, n3td3v
Hit me up on Yahoo! Messenger !

Posted by: n3td3v at March 1, 2005 6:32 AM

RSS and Add to My! links are now on each post in addition to being on the main blog page.

Thanks for catching that!

Posted by: Jeremy Zawodny at March 1, 2005 7:24 AM

Really nice Kwiki deployment, kudos!

Posted by: Ross Mayfield at March 1, 2005 8:44 AM

Any chance we can have a SOAP version with a WSDL file. It would save a lot of mucking about with XML Web connections and stuff, as we could get a library that does it all for us.

P.S. Your RSS feed needs to have your domain prefixed to all the hyper-links otherwise they don't work in aggregators.

Posted by: Martin Brown at March 1, 2005 8:53 AM

Jeremy, it would be nice if the response on the API were Content-Type: application/xml. It would also be nice if the RSS feed on this blog responded Content-Type: application/rss+xml. I hate seeing XML in my Web browser. Like, what is a user gonna do w/ dat. Also, I'm getting a lot of timeouts on the response of the blogs RSS feed. I get the HTTP/1.1 200 OK and then nothing.

Posted by: Randy Charles Morin at March 1, 2005 6:32 PM

Do you yahoo now? :)

Posted by: Yahoo at March 2, 2005 12:25 AM

Greetings,

I briefly tested your PHP example code, it works nice but number of results in SERPS are systematically inferior to Yahoo regular result page.

Example : in Yahoo.com a web search about "france" gives 242,000,000 results while with the SDK it gives 90,974,055... Quite a difference no ? This difference imho affect relevancy and we can doubt of the results served...

Is it temporary? does the API use an old or restricted index? Google did that, I hope Yahoo won't, as I am enthusiast about your APIs that look much more powerful :)

Posted by: Sebastien Billard at March 2, 2005 4:43 AM

I have stuck a C# example at the following location:
http://www.mgbrown.com/Downloads.aspx#Yahoo

Posted by: Martin Brown at March 2, 2005 5:05 AM

Sebastien:

Thanks for your comment. You'll find that the difference lies in the use of the similar_ok parameter. The 90 million number is the result with duplicates removed, whereas if you set similar_ok=1, you should see the full 242 million number.

I hope this answers your question.

Posted by: Yahoo at March 2, 2005 3:54 PM

Looking for some new ideas? Check the link under my name: It's an intelligent information agent [IIA] to support business end-users in finding products.

Also, if you get stuck and want other ideas for brainstorming, check this Technorati search: "XML Concepts" and "Mud's Tests" -- the blog-entires are a series of user-generated ideas on XML products.

If you can make things that integrate with these concepts, and can search for them ... you will be golden.

Good luck to all!

Posted by: Mud's Tests at March 2, 2005 6:59 PM

Hai,

This is Phani,I have a doubt regarding a opensource software that is working in Apache server,Php and Mysql.I have the entire documentation of it.

But Where i am stuck up with the installation process.As that is a open source they have given the entire code of the project and i am not able to track any think.

If any body can suggest me a compiler for that and also some suggestions on how to track that i mean install and run it ,that can make me free from a lot of stress.

With regards

atreyasa

Posted by: atreyasa at March 2, 2005 8:09 PM

Great, wonderfull, and half hearted. Rather than search engine, i prefer an open directory based on Yahoo Directory, just like ODP of Dmoz.org

Posted by: Cholis at March 2, 2005 10:33 PM

Hi guys,

is it possible to have an unlimited Yahoo API if the project is very interesting and require it? To which email is it possible to formulate the request?

Posted by: VB at March 3, 2005 2:34 AM

Yahoo planning to expand REST services to rest of Yahoo! tools like maps, loans, realestate etc., how about secured wallet services like calendar, notepad, etc?

Posted by: Sridhar Bala at March 3, 2005 8:39 AM

I have ported my C# example over to VB.Net.

It can also be found at: http://www.mgbrown.com/Downloads.aspx#Yahoo

Posted by: Martin Brown at March 4, 2005 2:30 PM

Does it say anywhere in the TOS whether caching the results in a database is allowed? Depending on the type of queries and the application's usage requirements this could help stretch the daily allowance.

Posted by: Jeffery M at March 6, 2005 11:26 PM

No PROPER Javascript examples? The one in the SDK doesn't really tell you how to use it... and it doesn't use the "common ways" to do things, so I have no clue...

Posted by: Refrozen at March 8, 2005 8:35 PM

You really need to get a SOAP/WSDL version out. There is a large developer community that would support you effort if you did.

Darkmoor

Posted by: darkmoor at March 23, 2005 10:41 AM

Hello
I am a vb.net programmer. I just want to start . Need helps with some code of buiding very simple application using yahoo web service.

Posted by: kashem at April 4, 2005 8:06 AM

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