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From Jens Alfke <j...@couchbase.com>
Subject Re: The if-match header
Date Thu, 18 Aug 2011 20:46:42 GMT

On Aug 18, 2011, at 1:41 PM, John Cheng wrote:

Does anyone know if this is unique to couchbase?

The If-Match: / If-None-Match: / ETag: headers, and the algorithm for rejecting conflicting
updates by comparing eTags, are fundamental parts of HTTP 1.1. And they’re used by a lot
of REST APIs, like the Atom Publishing Protocol, and by WebDAV.

—Jens

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