Hi Alex, I agree, it's awkward. Note that CouchDB already supports POSTing to a view to select several individual keys. If I recall correctly that decision came down to the fact that
a) servers put limits on the length of a URL (in mochiweb at the time it was 8KB) b) GET requests with bodies are not well-supported so if a user wanted to select hundreds of keys from a view a POST seemed like the path of least resistance. This multi-query support wouldn't introduce any new weirdness in that respect. I'm open to alternatives, though I think the POST option would probably still go forward because it's so similar to existing features. Best, Adam On Jan 11, 2011, at 1:02 PM, Alexandru Popescu ☀ wrote: > While the feature sounds pretty useful there is something that I > couldn't stop thinking: a POST for a view? > > I know that sounds purist but on the other hand one of the highest > praised characteristics of CouchDB is its HTTPness. On the other hand > I'm not sure I see all the angles of this feature to come up with a > better proposal. Maybe we could discuss it on #irc and see if there're > better solutions (at least for the general cases). > > :- alex > > > On Tue, Jan 11, 2011 at 5:21 PM, Adam Kocoloski <[email protected]> wrote: >> On Jan 11, 2011, at 9:58 AM, Chad George wrote: >> >>> Is there any work being done on getting multiple views in a single HTTP >>> request. I'm thinking of something similar to the multiple doc API. >>> >>> I just finished my first significant webapp with couchdb and one of the >>> things that was a little annoying with a javascript client was all the >>> nested async callbacks required to get all the data required for a >>> particular function to process. >>> >>> Sometimes this was 3 or 4 nested view lookups, and gracefully handling >>> errors is difficult. It would be much easier if I could pack them into a >>> single async call to couchdb then handle errors or success just once. >>> >>> This isn't really a critical feature since it can be done with multiple >>> requests, I'm not even sure it has the performance benefits that the >>> multi-doc api has ... but it certainly would be handy to have around when we >>> need it. >>> >>> >>> - Chad >> >> Hi Chad, I did some work on submitting multiple queries to a single view in >> one POST to that view. I'll try to clean it up and submit the patch this >> week. Multiple queries to different views in the same view group would be a >> straightforward extension internally, but I'm not sure what the HTTP API >> would look like for that. Queries to different view groups should always >> require separate requests IMO. >> >> The case to track this would be >> https://issues.apache.org/jira/browse/COUCHDB-523 - please feel free to >> comment, especially if the proposed feature doesn't meet your needs. Cheers, >> >> Adam >> >> >>
