RESTFul Web Services The Easy Way

What is REST? Representational State Transfer Maps your CRUD actions to HTTP verbs ActionVerb CreatePOST RetrieveGET UpdatePUT DeleteDELETE

Why REST? Simple, both conceptually and programmatically Simpler and cleaner than SOAP

SOAP Example POST /InStock HTTP/1.1 Host: Content-Type: application/soap+xml; charset=utf-8 Content-Length: nnn IBM

REST Example GET /stock/IBM HTTP/1.1 Host: Accept: application/xml

SOAP Example 2 POST /InStock HTTP/1.1 Host: Content-Type: application/soap+xml; charset=utf-8 Content-Length: nnn IBM 50

REST Example 2 POST /order HTTP/1.1 Host: Content-Type: application/xml; charset=utf-8 IBM 50

Single Resource Summary Create POST /resourceName Retrieve GET /resourceName/resourceId Update PUT /resourceName/resourceId Delete DELETE /resourceName/resourceId

Making it Easy: JSR 311 JAX-RS: The Java API for RESTful Web Services No XML Configuration! Simple annotations to quickly put together some rest based web services. Can do automatic serialization (both XML and JSON + many others)

Example Application w/ Jersey

Some REST/Jersey/JAXB Gotchas No real security standard for REST. Mostly DIY solutions Hibernate dependencies Use cg-lib-nodeps

Questions?

The End Sean is reachable at: