Handson Automating the Use of Web APIs through Lightweight Semantics
Upcoming SlideShare
Loading in...5
×
 

Handson Automating the Use of Web APIs through Lightweight Semantics

on

  • 538 views

ICWE 2011 Tutorial - Hands-on

ICWE 2011 Tutorial - Hands-on
Automating the Use of Web APIs through Lightweight Semantics
Maria Maleshkova, Carlos Pedrinaci and Dong Liu

Statistics

Views

Total Views
538
Views on SlideShare
538
Embed Views
0

Actions

Likes
0
Downloads
5
Comments
0

0 Embeds 0

No embeds

Accessibility

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

Handson Automating the Use of Web APIs through Lightweight Semantics Handson Automating the Use of Web APIs through Lightweight Semantics Presentation Transcript

  • Automating the Use of Web APIs -Hands-on Session-
    The Open University
    ICWE 2011, Paphos, Cyprus
  • Presenters
    Maria Maleshkovam.maleshkova@open.ac.uk
    Dong Liu d.liu@open.ac.uk
    Carlos Pedrinacic.pedrinaci@open.ac.uk
  • Outline
    Web API Annotation
    Web API annotation with SWEET
    Semantic description publishing in iServe
    Web API Discovery
    Without lightweight semantics
    Service search in iServe
    Web API Invocation
    Invocation with the Invocation Engine
  • Preparation for Hands-On
    The material shown in this session will be the basis for the hands-on session afterwards
    You’ll need Firefox
    Tabulator extension for Firefox
    http://dig.csail.mit.edu/2007/tab/
  • Web API Annotation Hands-On
    The script for the Web API annotation hands-on is available at:
    http://iserve.kmi.open.ac.uk/wiki/index.php/Hands-on_Session
  • Web API Annotation with SWEET
    Open SWEET
    http://sweetdemo.kmi.open.ac.uk/war/MicroWSMOeditor.html
    Open GeoNamesWebService documentation
    http://www.geonames.org/export/web-services.html
    Annotate the CountryCodeoperation
  • Annotation Steps
    Create Service property
    Rename it to ‘GeoNames’
    Create Operation property
    Rename it to ‘CountryCode’
    Create Input
    Create Output
    Create Address
    Rename address property (not the label itself) to
    http://api.geonames.org/countryCode
    Create HTTP Method
    Rename method property (not the label itself) to GET
  • Annotation Steps
    Create Parameter ‘lat’
    Select the ‘lat’ string the double-click on ‘Parameter’
    Rename the parameter to ‘lat’
    Create Parameter ‘long’
    Create Parameter ‘username’
    Create Parameter ‘isoCode’
  • Model References
    Input
    lat
    http://www.w3.org/2003/01/geo/wgs84_pos#lat
    long
    http://www.w3.org/2003/01/geo/wgs84_pos#long
    username
    http://purl.oclc.org/NET/WebApiAuthentication#Username
    Output
    isoCode
    http://www.geonames.org/ontology#countryCode
  • Liftings and Lowerings
    Input lowering
    http://people.kmi.open.ac.uk/ning/Schema/GeoNames/CountryCodeLowering.txt
    Output lifting
    http://people.kmi.open.ac.uk/ning/Schema/GeoNames/CountryCodeLifting.txt
  • Publishing the Description
    Look at the annotated HTML by saving it to your local machine
    Look at the generated RDF by exporting it to you local machine
    Publish the description in the semantic Web service repository iServe
    http://iserve-dev.kmi.open.ac.uk/iserve
    maria
    maria
    Note the service ID!!!
  • Web API Discovery Hands-On
    The script for the Web API annotation hands-on is available at:
    http://iserve.kmi.open.ac.uk/wiki/index.php/IServe_Higher_Level_Discovery_API
  • Invocation Example
    Test Invoke
    http://iserve-dev.kmi.open.ac.uk/RestServiceInvoke/ServiceInvoke/4619ca73-bb6e-4b99-8114-ad2e2cae3b60/CountryCode?rdfURL=http://iserve.kmi.open.ac.uk/exampleInput/DE.rdf
    Monitoring Example
    http://iserve-dev.kmi.open.ac.uk:8080/RestInvoke/service/e8f9548e-bbed-43fe-9d8a-71b7fdefb9da/operation/SearchListingsOperation/data
  • Invocation
    Look at you service description
    http://iserve-dev.kmi.open.ac.uk/iserve/page/services/YOURSERVICEID
    http://iserve-dev.kmi.open.ac.uk/iserve/page/services/db4b646a-4665-4337-9626-4669cc8bce56
    Invocation URI
    http://iserve-dev.kmi.open.ac.uk/RestServiceInvoke/ServiceInvoke/{YOURSERVICEID} /{OperationName}?rdfURL={URLtoInputRDF}
    http://iserve-dev.kmi.open.ac.uk/RestServiceInvoke/ServiceInvoke/71879558-f1aa-40a1-8a11-5fd3c48a6cde/CountryCode?rdfURL=http://people.kmi.open.ac.uk/ning/Schema/GeoNames/GeoName_input_CY.rdf
  • Invocation
    Sample input RDF
    http://iserve.kmi.open.ac.uk/exampleInput/FR.rdf
    http://iserve.kmi.open.ac.uk/exampleInput/CY.rdf
    http://iserve.kmi.open.ac.uk/exampleInput/BG.rdf
    http://iserve.kmi.open.ac.uk/exampleInput/DE.rdf
    http://iserve.kmi.open.ac.uk/exampleInput/GBR.rdf
    Compare results with
    http://api.geonames.org/countryCode?lat=XXXX&lng=YYYYY&username=mariam