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YQL Guide

This guide describes the Yahoo! Query Language (YQL) Web Service, which enables you to access Internet data with SQL-like commands. This guide is for software developers who are familiar with Web applications that call Web services to retrieve data in XML or JSON format. Experience with SQL, MySQL, or Yahoo! Pipes is helpful, but not required.

The web is your CMS

Source :

Making it easier to access APIs

What we need is a way to abstract the pains of different data formats and authentication formats away from the developer — and this is the purpose of the Yahoo Query Language, or YQL for short.

Libraries like jQuery and YUI make it easy and reliable to use JavaScript in browsers (yes, even IE6) and YQL allows us to access web services and even the data embedded in web documents in a simple fashion – SQL style.

Select * from the web and filter it the way I want

YQL is a web service that takes a few inputs itself:

  • A query that tells it what to get, update or access
  • An output format – XML, JSON, JSON-P or JSON-P-X
  • A callback function (if you defined JSON-P or JSON-P-X)

You can try it out yourself – check out this link to get back Flickr photos for the search term ‘santa’ in XML format. The YQL query for this is

select * from where text="santa"

The easiest way to take your first steps with YQL is to look at the console. There you get sample queries, access to all the data sources available to you and you can easily put together complex queries. In this article, however, let’s use PHP to put together a web page that pulls in Flickr photos, blog posts, Videos from YouTube and latest bookmarks from Delicious.

Check out the demo and get the source code on GitHub.

Source :

/* YouTube RSS */
$query = 'select description from rss(5) where   url="";';
/* Flickr search by user id */
$query .= 'select farm,id,owner,secret,server,title from where user_id="11414938@N00";';
/* Delicious RSS */
$query .= 'select title,link from rss where url="";';
/* Blog RSS */
$query .= 'select title,link from rss where url=""';
/* The YQL web service root with JSON as the output */
$root = '';
/* Assemble the query */
$query = "select * from query.multi where queries='".$query."'";
$url = $root . '&q=' . urlencode($query);

Yahoo unveiled major changes to its image search service this morning and the user experience is now better than Google Image Search. Google may have all kinds of special collections (like the new Life Magazine archives) but Yahoo’s image search is just more pleasing to use.

The new Yahoo! interface includes more recommended search queries for related images than Google, a next-image picking slideshow on each image’s page, and an easy direct link to the image itself. Unfortunately, there is not a filter by copyright conditions, which is a major shortcoming.


Google’s […]


A la conférence de presse hier au CES 2009, Un partenariat entre Yahoo et Samsung fut révélé concernant l’intégration de widgets sur les Télévisions HD, système basé sur les moteur Konfabulator. Flickr, des infos, de la finance et d’autres services Yahoo seront disponibles sur votre écran pendant que vous regardez un programme. Ils appellent cela “Medi@ 2.0,”, un nom plutôt “buzz” qui deviendra probablement “Yahoo TV”.

Voici une vidéo de la présentation de l’interface en action — la vidéo est de  moyenne qualité  mais cela donne une bonne idée du […]

Gérer son activité sociale sur le web peut rapidement être très chronophage, surtout si vous êtes un minimum actif (blog + partage de photos + vidéos + liens + tweet…). Autant il existe des services simples pour agréger vos publications (à l’image de
Friendfeed) autant il est nettement plus complexe de gérer ça dans l’autre sens : publier sur plusieures plateforems en même temps.

C’est là où des services comme ou
Pixelpipe prennent tout leur intérêt. Le problème c’est que ces services sont tout de même assez limités et c’est là où
Tarpipe rentre […]

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