YQL Case Study

YQL Case Study

Allan Huang @ esobi Inc.

Agenda

YQL Case Study - Stock Quote

PlaceFinder API Case Study - City WOEID

Flickr API Case Study - City WOEID Case Study - City Photo Case Study - Area Photo Case Study - Photo Information Case Study - Photo EXIF

Continued Agenda

Instagram API Case Study - Area Photo Case Study - Popular Photo Case Study - Recent Tagged Photo Case Study - Location Search

Yahoo Query Language

YQL - Yahoo Query Language

Access

RSS

HTML

WebService

XML

CSV

YahooWeather

Flickr

YahooFinance

YQL in HTTP

XML | JSON

YahooBOSS Geo

Access

Access

JSON

Instagram

YQL Usage Information

For commercial purposes At least 6 months notice on YDN Uptime target of over 99.5% Register an API Key with Yahoo YQL Console

YQL Statements

YQL Console

Case Study - Stock Quote

USE "http://www.datatables.org/yahoo/finance/yahoo.finance.quotes.xml" as stock_quotes;

SELECT Symbol, Name, Open, DaysHigh, DaysLow, LastTradePriceOnly, ChangeinPercent FROM stock_quotes where symbol in ("^DJI", "^IXIC", "^SPX", "^SOX", "^N225", "^HSI", "^TWII", "YHOO", "AAPL", "GOOG", "IBM", "MSFT", "TSM", "2330.TW", "2353.TW")

Familiar with JSON / XML

Dow Jones Index Issue

Why can't I download data from the Dow Jones Index? Yahoo! is no longer licensed to provide data down

loads for the Dow Jones Index. Dow Jones Industrial Average [^DJI] data can onl

y be viewed on the screen. Yahoo! Help

Yahoo Finance Lookup Symbol

Yahoo Stock Lookup Service

http://autoc.finance.yahoo.com/autoc?query=Apple&callback=YAHOO.Finance.SymbolSuggest.ssCallback

Familiar with JSON format Symbol Lookup from Yahoo Finan

ce

PlaceFinder API

PlaceFinder API Usage Information Yahoo BOSS Geo service

RESTful Geocoding Web service Currently supports 10 languages

en, fr, de, it, es, pt, nl, zh (tw / cn), ja, ko WOEID

Where On Earth IDentifier

Case Study – City WOEID

SELECT city, woeid FROM geo.placefinder where text= "Taipei" Familiar with JSON / XML

Flickr API

Flickr API Usage Information

Before using Flickr API Get you API Key

Get api_key Put your app in the Flickr App Garden

Limitations Your application must stay under 3600 queries pe

r hour across the whole key Your application can cache API results and image

s for up to 24 hours Flickr API Explorer

Case Study – City WOEID

SELECT woe_name, woeid FROM flickr.places where api_key="???" and query="Taipei" and place_type_id="7"

Familiar with JSON / XML

Case Study - City Photo

SELECT * FROM flickr.photos.search(50) where api_key="???" and tags="view, scenery, scene, landscape" and content_type="1" and sort="interestingness-desc" and weoid="2306179"

Familiar with JSON / XML

Case Study - Area Photo

SELECT * FROM flickr.photos.search(50) where api_key="???" and tags="view, scenery, scene, landscape" and content_type="1" and sort="interestingness-desc" and lat="25.0259641" and lon="121.5293006" and radius="32"

Familiar with JSON / XML

Case Study - Photo Information SELECT * FROM flickr.photos.info where api_key="???" and photo_id="385

5224197" and secret="4ac2a27833" Familiar with JSON / XML

Case Study - Photo EXIF

SELECT * FROM flickr.photos.exif where api_key="???" and photo_id="3855224197"

Familiar with JSON / XML

Flickr Photo URL

Photo Source URL http://farm{farm-id}.staticflickr.com/{server-id}/{id}_{secret}.jpg http://farm{farm-id}.staticflickr.com/{server-id}/{id}_{secret}_[mstz

b].jpg

Size Suffixes s, q, t, m, n, z, b except -, c, o

Individual Photo URL http://www.flickr.com/photos/{owner-id}/{photo-id} http://flickr.com/photo.gne?id={photo-id}

Instagram API

Instagram API Usage Information Before using Instagran API

Register Your Application Get client_id and client_secret

Limitations Your application are limited to 5000 requests per

hour per client_id or access_token Apigee API Console For Instagram

Case Study – Area Photo

SELECT data.link, data.images, data.caption FROM json where url='https://api.instagram.com/v1/media/search?lat=25.02597094&lng=121.5292736&distance=5000&client_id=???'

Familiar with JSON

Case Study – Popular Photo

SELECT data.link, data.images, data.caption FROM json where url='https://api.instagram.com/v1/media/popular?client_id=???'

Familiar with JSON

Case Study – Recent Tagged Photo SELECT data.link, data.images, data.caption FROM json where url='https://

api.instagram.com/v1/tags/spring/media/recent?client_id=???' Familiar with JSON

Case Study – Location Search SELECT data FROM json where url='https://api.instagram.com/v1/locations/

search? lat=25.02597094&lng=121.5292736&distance=5000&client_id=???' Familiar with JSON

Instagram Photo URL

Photo Source URL images.standard_resolution.url attribute

width 612px, height 612px images.low_resolution.url attribute

width 306px, height 306px images.thumbnail.url attribute

width 150px, height 150px

Individual Photo URL data.link attribute

Reference

YQL Usage Information Register an API Key with Yahoo

Yahoo BOSS - Pricing PlaceFinder FAQ

What is Flickr App Garden? Flickr Developer Guide Flickr Place Find Flickr Photo Search Flickr Photo GetInfo Flickr Photo GetExif Photo Source URLs

Instagram Developer Documentation Instagram Authentication Instagram API Endpoints

Q&A