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From "Matt Goodall" <matt.good...@gmail.com>
Subject Re: Does CouchDB check autogenerated document id's?
Date Sat, 03 Jan 2009 15:12:22 GMT
2009/1/3 Noah Slater <nslater@apache.org>:
> On Fri, Jan 02, 2009 at 04:52:29PM -0800, Chris Anderson wrote:
>> On Fri, Jan 2, 2009 at 4:10 PM, Matt Goodall <matt.goodall@gmail.com> wrote:
>> > 2009/1/2 Jason Davies <jason@jasondavies.com>:
>> >>
>> >> On 2 Jan 2009, at 16:11, Paul Davis wrote:
>> >>
>> >>> Also, as a random aside, why does _uuids require a POST?
>> >>
>>
>> In the normal case you would POST a document to a collection when you
>> want the server to choose the final URL. However, intermediaries have
>> a habit of retrying POSTs randomly, so when you POST and id-less Couch
>> document, occasionally duplicate documents are created. We work around
>> this by recommending PUT as the document creation method. Of course
>> clients can specify any document id they'd like to, but for
>> lightweight clients CouchDB provides the _uuids service.
>>
>> The POST is pragmatic for cache-control reasons, but also RESTy,
>> because it exposes the service that CouchDB uses internally for
>> directing document POSTs to new ids. By using the _uuids service,
>> clients can become the part of CouchDB that would direct documents to
>> URLs in a collection.
>
> I don't agree and I think it should change to GET.
>
>  * You hint that it is to mirror the process required for the creation of
>    documents. This is not how we should be designing the interface. UUID
>    creation is totally disjoint and should be considered separately.
>
>  * You mention cache-control, but nothing about GET semantics implies
>    cacheability so unless there is some major flaw with common UA
>    implementations I don't see this as a valid argument.
>
> I would suggest you open a bug for this issue Matt.

Done, and thanks for the interesting discussion too :).

- Matt

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