Lightbulbs!  My favourite REST example.  See for yourself;

http://www.markbaker.ca/2002/08/Rest/

> Using the REST approach, following your  scheme one would define the 
> resources:
> http://example.lightbulb.net/TurnOn
> http://example.lightbulb.net/TurnOff
> http://example.lightbulb.net/Dim
>
> and the light would be turned on, turned  off and dimmed by HTTP/POSTing a 
> message to each of the  respective resources.
>
> An alternative scheme would be to have  just one resource:
> http://example.lightbulb.net
> and  include the name of the operation in the POSTed  messages.
>
> Or  one could HTTP/GET "queries" like http://example.lightbulb.net/TurnOn  
> and http://example.lightbulb.net/Dim?Luminosity=.75.

None of those are RESTful.

AFAIK, REST suggests just one solution for that problem.  A single
identifier for the lightbulb;

http://example.net/lightbulb1234

and the use of PUT to turn the bulb on and off, ala;

PUT http://example.org/lightbulb1234
Content-Type: application/lightbulb+xml
<lightbulb state="on"/>

Simple, no?

Mark.





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