Yql Intercon 09

Yahoo Query Language
select * from internet

Bruno Zanchet
bzanchet@yahoo-inc.com

data manipulation
Aplicação = +
data visualization

var map = new YMap
(document.getElementById('map'));
…
dev var currentGeoPoint = new YGeoPoint
( _c.Lat, _c.Lon );
map.addMarker(currentGeoPoint);

?
…

…
if (flickcurl_prepare(fc,

?
"flickr.photos.geo.correctLocation",
parameters, count)) { … }
…

? http://search.yahooapis.com/
ImageSearchService/V1/imageSearch?
appid=YahooDemo&query=Corvette&results=2

?
http://weather.yahooapis.com/
forecastrss?p=FRXX0076&u=c

Yahoo! My Yahoo! Mail Welcome, guest Sign In

Search

MY PROJECTS APIs & WEB SERVICES var map = new YMap
RESOURCES SUPPORT

YDN Maps Suite AJAX Maps
Yahoo! Maps Web Services - AJAX API Getting …
READY TO GET STARTED?
You aren't signed in Sign In Help

Started Guide Get an App ID
dev Home The Tour Sign Up Explore currentGeoPoint = new YGeoPoint
var Search
Learn the fundamentals of the Yahoo! Maps AJAX API and start creating your own maps. This page contains:

Introduction and Prerequisites
( _c.Lat, _c.Lon ); Yahoo! Maps Cheatsheets
Examples Flickr Services Yahoo! My Yahoo! Mail RECENT BLOG ARTICLES Welcome, guest Sign In

API Documentation Feeds Your API Keys map.addMarker(currentGeoPoint);
Display a Yahoo! Map

?
Apply for a new API Key
Add controls to your Yahoo! Map Leonardo da Vinci: Hacker Search
Add a logger to a Yahoo! Map
Place a marker on a Yahoo! Map … MY PROJECTS
January 24, 2009

APIs & WEB SERVICES RESOURCES SUPPORT
Draw Polylines on a Yahoo! Map Whaddyathink? & the Yahoo! Application
flickr.places.getPlaceTypes
Place Smart Markers on a Yahoo! Map
Add multiple custom markers on Yahoo! Map YDN Weather RSS Feed
Platform
January 22, 2009
Traffic information overlay
Yahoo! Pipes RSS output information overlay
Yahoo! Pipes JSON output information overlay
Yahoo! Weather RSS Feed Making the new Yahoo! Currency Converter
Yahoo! My Yahoo! Mail Welcome, guest Sign In

Local search results overlay
Fetches a list of available place types for Flickr.
YMap accessible
January 21, 2009
The Weather RSS feed enables you to get up-to-date weather information for your location. You can save this
Overlay GeoRSS XML data
Overlay custom objects at YGeoPoint location
…
feed in My Yahoo! or your favorite feed aggregator, or incorporate the RSS data into your own web site or client
Search

application. The Weather RSSRetrievingdynamically-generatedfrom based on zip code or Location ID.
feed is a and displaying data feed
Authentication
Overlay custom objects at YCoordPoint location
Wikipedia with YQL PROJECTS
MY APIs & WEB SERVICES RESOURCES SUPPORT
Overlay polyline on Yahoo! Map January 18, 2009 URL and the RSS response for developers. It contains these
This page describes the format of the request

?
Export Yahoo! Map in GeoRSS format YDN Image Search Documentation for Yahoo! Search Web Services
This method does not require authentication.
GeoRSS overlay with polyline
sections:
Get zoom level given radius from center
Custom position of controls
Arguments RSS Request Image Search Documentation for Yahoo! Search READY TO GET STARTED?

Change Marker Images Dynamically
Use YMapTypeControl to position map types
Summary
Request Parameters
By applying for an Application ID for this service, you
hereby agree to the Terms of Use

Submitting Image Queries
Rate Limit
api_key (Required)
Other Features of the Yahoo! Maps AJAX API
…
RSS Response
YEvent, YGeoRSS, YMarker
Your API application key. See here for moreTop-Level Elements
details. The Image Search Web Service allows you to search the Internet for images.
Get an App ID
Terms of Service Channel Elements
Support & Community
Image Elements
Example Response

?
Download all of the cheatsheets and example code in the Yahoo Item Elements Request URL
Maps API Reference Bundle. Condition Codes YAHOO! GROUPS DISCUSSIONS view all
<place_types> Examples http://search.yahooapis.com/ImageSearchService/V1/imageSearch
For detailed descriptions of the classes and methods in the API, place_type_id="22">neighbourhood</place_type>
<place_type yahoo local search code in php
Terms of Use
Tue, 27 Jan 2009
check out v3.8 Reference Manual. <place_type place_type_id="7">locality</place_type>
<place_type
<place_type
http://search.yahooapis.com/
place_type_id="9">county</place_type>
RSS Request
place_type_id="8">region</place_type>
Remaining, Supporting Classes
Request parameters My Web Search API shut down
See information on constructing REST queries announcement

Introduction and
<place_type
Prerequisites
<place_type
place_type_id="12">country</place_type>
The Weather RSS feed request follows simple HTTP GET syntax: start with a base URL and then add
place_type_id="29">continent</place_type> (?). Multiple parameters are separated by an ampersand (&).
parameters and values after a question mark Parameter Value Description
Wed, 21 Jan 2009

</place_types>
The Yahoo! AJAX Maps API lets developers add maps to their web sites using DHTML and JavaScript®. Maps
The base URL for the Weather RSS feed is
are fully embeddable and scriptable using the JavaScript programming language. Yahoo! Maps AS-Flash API's
appid string (required) The application ID. See Application IDs for more information.
Re: Site Explorer API returns 999 Rate Limit
Exceeded
query string (required) The query to search for. Use + to include terms, - to exclude terms, and Wed, 21 Jan 2009

?
Error Codes
built-in geocoder means that you can specify a physical address or latitude/longitude coordinates for your map's
http://weather.yahooapis.com/forecastrss put quotes around "exact phrase".
location, as you like. type all (default), any, or The kind of search to submit: Reminder: Old obsolete versions of Local
In this section, Summary shows how to make an RSS request with different parameters; Request Parameters
phrase Search (V1, V2) shutting do
In order to create and test applications100: Yahoo! Maps AJAX API, you'll need to use a supported summarizing those parameters.
using Invalid API Key shows a table web all returns results with all query terms. Mon, 19 Jan 2009
The 9 or Safari 3. Newer versions of these browsers are also
browser: Firefox 2, Internet Explorer 6 or 7, Opera API key passed was not valid or has expired. any returns results with one or more of the query terms.
supported. You can code your JavaScript applications usingcurrentlytext editor or IDE.
105: Service your favorite unavailable phrase returns results containing the query terms as a phrase.
SUMMARY results integer: default 10, The number of results to return.
The requested service is temporarily unavailable.
An application ID is required to use the Yahoo! Maps AJAX API. You can get an application ID here. max 50
The Weather RSS feed request follows simple HTTP GET syntax: start with a base URL and then add
111: Format "xxx" not found
start integer: default 1
parameters and values after a question mark (?). Multiple parameters are separated by an starting result position to return (1-based). The finishing position (start
The ampersand (&). For
For best results, you should launch your web pagesrequested response format was not found. applications
The from a web server. However, it's possible to run + results - 1) cannot exceed 1000.
the Weather RSS feed there are two parameters:
directly from your hard drive by double-clickingMethod This can be donefound
112: on them. "xxx" not by lowering the security settings in format any (default), bmp, Specifies the kind of image file to search for.
the Internet Explorer browser or by setting the The requested method was not found. p for location.
UniversalBrowserRead property in Firefox. gif, jpeg, png
u for degrees units (Fahrenheit or Celsius). adult_ok no value or 1 The service filters out adult content by default. Enter a 1 to allow adult
114: Invalid SOAP envelope
http://weather.yahooapis.com/ content.
The SOAP envelope send in the requestlocationnot be parsed. required. Use this parameter to indicate the location for the weather forecast as a
The could parameter p is
Displaying a Yahoo! Map zip code or Location ID. coloration any (default), color, The service returns only the images of the coloration specified (color or
115: Invalid XML-RPC Method Call
All the API classes and methods necessary to The XML-RPC request document couldyour be parsed.when
interact with Yahoo! Maps are available to not application
http://weather.yahooapis.com/forecastrss?p=location
bw black-and-white).
site string: default no A domain to restrict your searches to (e.g. www.yahoo.com). You may
you include Yahoo! Maps AJAX API library in your web page.This example uses the demonstration application
value submit up to 30 values (site=www.yahoo.com&site=www.cnn.com).
ID "YD-eQRpTl0_JX2E95l_xAFs5UwZUlNQhhn7lj1H"; you cannot use this Application Forand must requestweather for Yahoo! Headquarters in Sunnyvale, CA, use the zip
ID example, to get one code for Sunnyvale
here. API Explorer (94089):
output string: xml The format for the output. If json is requested, the results will be returned
(default), json, php in JSON format. If php is requested, the results will be returned in
Serialized PHP format.
. <html> API Explorer : flickr.places.getPlaceTypes
http://weather.yahooapis.com/forecastrss?p=94089
. <head> callback string The name of the callback function to wrap around the JSON data. The
following characters are allowed: A-Z a-z 0-9 . [] and _. If output=json has
. <b><script type="text/javascript" Or use the Location ID for Sunnyvale (USCA1116):
. src="http://api.maps.yahoo.com/ajaxymap?v=3.8&appid=YD- not been requested, this parameter has no effect. More information on the

var map = new YMap
…
dev var currentGeoPoint = new YGeoPoint
( _c.Lat, _c.Lon );
map.addMarker(currentGeoPoint);
…
Bindings
…

YQL
…

YQL stmt
http://search.yahooapis.com/
select

desc
show
http://weather.yahooapis.com/

• milhares de serviços
• milhares de documentações diferentes
• dados isolados
• ﬁltrar, combinar, alterar, ..

• similar ao SQL
• auto-descritivo
• tempo real

• acesso aos dados de forma consistente
• documentação no mesmo lugar
• requests paralelas, cache, ...

• show, desc
• select
• insert, update, delete
• use

show tables
desc social.contacts

select * from flickr.photos.search
where text = “cat”

select * from github.repo.commits where
id='yql' and repo='yql-tables'

select * from nyt.article.search where
query="spontaneous combustion"

select * from google.translate where
q in (
select title from
nyt.article.search where
query="spontaneous combustion"
) and target='pt'

SELECT what
FROM collection
WHERE filter condition
IN (sub-select)
LIMIT n OFFSET n

• modiﬁcar os dados na internet
• usando <execute>
• executa POST, PUT, DELETE
• ex.: twitter, bit.ly

insert into twitter.status
(status,username,password) values
("new tweet from YQL",”xxx”,”yyy”);

delete from twitter.status where
id="2108869549" and username="xxx"
and password="yyy"

• o poder do YQL em outras APIs
• ou na sua API

use ‘http://url-to-def.xml’ as tableName;

select * from tableName where ...

http://github.com/yql/yql-tables

• javascript rodando no servidor
• acessar APIs com autenticação
• juntar pesquisas distintas

• melhorar os dados
• criar API a partir de html (scrapping)
• transformar dados
• mover lógica da aplicação para o cloud

<execute><![CDATA[
// Your javascript goes here.
response.object = <item>
<url>{request.url}</url>
<a>{a}</a>
<b>{b}</b>
</item>;
]]></execute>

<execute><![CDATA[
var qs = query;
var search = y.query('select * from search.web(50) where query=@query', {query: qs}).results;
var images = [];
default xml namespace='http://www.inktomi.com/';
for each (var result in search.result) {
images.push(
y.query('select * from search.images(1) where
query=@query and url=@url', {url:result.url, query:qs}));
}
var i = 0;
for each (var result in search.result) {
var image = images[i++].results.result;
if (image) {
result.image = <image>{image}</image>;
}
}
response.object = search;
]]>

construa aplicações de
forma mais fácil

• menos linhas de código
• sintaxe consistente para acesso a dados

construa aplicações
mais rápidas

• serviço no cloud faz o trabalho
• processamento, ﬁltro, conversões
• menos chamadas de serviços
• mais perto dos dados

• http://developer.yahoo.com/yql/

• http://meme.yahoo.com/api/

• http://tech.groups.yahoo.com/group/meme-dev/

Yql Intercon 09

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