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Re: WSD Requirements: add a requirement about safe and idempotent characteristics

From: Mark Baker <distobj@acm.org>
Date: Tue, 26 Nov 2002 15:15:32 -0500
To: Ugo Corda <UCorda@SeeBeyond.com>
Cc: www-ws-arch@w3.org
Message-ID: <20021126151532.L16590@www.markbaker.ca>

Hi Ugo,

On Tue, Nov 26, 2002 at 11:26:52AM -0800, Ugo Corda wrote:
> I have the impression that Hugo wanted to also address cases where POST is used instead of GET (because, for example, headers are to be specified), but still the operation is idempotent. So just looking at the method would not sufficient to tell whether the operation is idempotent or not.

Looking at the method will *always* be enough to know whether it's
idempotent or not.  POST is not idempotent, by definition.  PUT is
idempotent, as is GET and DELETE, also by definition.  They have
their own standalone meanings, and nothing in the body of the message
can change that.

(uh oh, are we going to have to get into the "HTTP isn't a transport
protocol" issue again? 8-)

MB
-- 
Mark Baker.  Ottawa, Ontario, CANADA.   http://www.markbaker.ca

   Will distribute objects for food
Received on Tuesday, 26 November 2002 15:11:37 GMT

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