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https://issues.apache.org/jira/browse/COUCHDB-604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12793227#action_12793227
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Benoit Chesneau commented on COUCHDB-604:
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I just propose a choice. Will see what others will say ...
I still fail to see how a sax style parser and json could work together but
that's another story. Anyway your response will never be valid if it timeout
your parser will still need to complete the response. Maybe indeed sending a
multipart response is more valid here.
> _changes feed with ?feed=continuous does not return valid JSON
> --------------------------------------------------------------
>
> Key: COUCHDB-604
> URL: https://issues.apache.org/jira/browse/COUCHDB-604
> Project: CouchDB
> Issue Type: Improvement
> Components: HTTP Interface
> Affects Versions: 0.10
> Reporter: Joscha Feth
> Priority: Trivial
>
> When using the _changes interface via ?feed=continuous the JSON returned is
> rather
> a stream of JSON documents than a valid JSON file itself:
> {"seq":38,"id":"f473fe61a8a53778d91c38b23ed6e20f","changes":[{"rev":"9-d3e71c7f5f991b26fe014d884a27087f"}]}
> {"seq":68,"id":"2a574814d61d9ec8a0ebbf43fa03d75b","changes":[{"rev":"6-67179f215e42d63092dc6b2199a3bf51"}],"deleted":true}
> {"seq":70,"id":"75dbdacca8e475f5909e3cc298905ef8","changes":[{"rev":"1-0dee261a2bd4c7fb7f2abd811974d3f8"}]}
> {"seq":71,"id":"09fb03236f80ea0680a3909c2d788e43","changes":[{"rev":"1-a9646389608c13a5c26f4c14c6863753"}]}
> to be valid there needs to be a root element (and then an array with commata)
> like in the non-continuous feed:
> {"results":[
> {"seq":38,"id":"f473fe61a8a53778d91c38b23ed6e20f","changes":[{"rev":"9-d3e71c7f5f991b26fe014d884a27087f"}]},
> {"seq":68,"id":"2a574814d61d9ec8a0ebbf43fa03d75b","changes":[{"rev":"6-67179f215e42d63092dc6b2199a3bf51"}],"deleted":true},
> {"seq":70,"id":"75dbdacca8e475f5909e3cc298905ef8","changes":[{"rev":"1-0dee261a2bd4c7fb7f2abd811974d3f8"}]},
> {"seq":71,"id":"09fb03236f80ea0680a3909c2d788e43","changes":[{"rev":"1-a9646389608c13a5c26f4c14c6863753"}]},
> in short this means that if someone does not parse the change events in an
> object like manner (e.g. waiting for a line-ending and then parsing the
> line), but using a SAX-like parser (throwing events of each new object, etc.)
> and expecting the response to be JSON (which it is not, because its not
> {x:[{},{},{}]} but {}{}{} which is not valid) there is an error thrown.
> I can see, that people doing this line by line might be okay with the above
> approach, but the response is not valid JSON and it would be nice if there
> were a flag to make the response valid JSON.
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