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From Paul Davis <>
Subject Re: invalid json allowed into couch
Date Sat, 19 Sep 2009 23:27:07 GMT
Technically, this isn't invalid JSON.

Depending on how you interpret the spec, it says that properties only
"MAY" be enforced as unique. Some people read the line about "being a
subset of JavaScript" which does enforce uniqueness to override this

Either way, the JSON serializer that CouchDB uses doesn't enforce
uniqueness so it'll happily accept and repeat back objects with
repeated property names. You can check with cURL that your doc
actually kept both of those properties.

As to having a 'fix' for this, the only thing that I could forsee
happening is enforcing the constraint and just erroring out on the
initial PUT request. Concatenating repeated fields would be something
that a client would need to worry about.

Paul Davis

On Sat, Sep 19, 2009 at 7:11 PM, Norman Barker <> wrote:
> Hi,
> currently if adding documents to couch using the REST api it is
> possible to add a document such as
> {
>  "prop1": "1",
>  "prop1": "2"
> }
> which only displays partially in Futon (skips first property, "prop1":
> "1") due to the unique constraints of JSON object properties.
> This is actually a good feature, since I am generating invalid JSON
> from an event based API, is there a way to add a normalisation
> function to the write document operation  (using Erlang ideally) that
> would group these properties,  its gets difficult when the documents
> are nested but any thoughts appreciated.
> Many thanks,
> Norman

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