REST Web Service Example

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Directory manager web service could let users

add	new resources/directories to existing directories
delete	resources/directories in these directories
fetch	individual resources in these directories
list	resources in directories served by web server

REST style applications would support these operations using HTTP.

DELETE	delete resource/directory among web server documents
GET	fetch resource or listing of a directory
PUT	add directory or resource to web server document space

2nd generation web service passes data as XML not as HTML.

Friendly service would support dual use by

software applications
users using web browsers

Directory listing for service's resources in XML might be

<?xml version="1.0"?>
<?xml-stylesheet version="1.0" type="text/xsl"
href="http://www2.macs.hw.ac.uk:8080/demo/directory.xsl"?>
<directory xmlns:xlink="http://www.w3.org/1999/xlink"
xml.base="http://www2.macs.hw.ac.uk:8080/">
<name>/tomcat-docs/config/</name>
<folder xlink:href="/tomcat-docs/config/../">../</folder>
<folder xlink:href="/tomcat-docs/config/printer/">printer/</folder>
<file xlink:href="/tomcat-docs/config/server.html">server.html</file>
</directory>

giving folders/files in tomcat-docs/config/ in tomcat's webapps/ folder.

Lecture 23

XHTML 1.0

Slide 5