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From "Benoit Chesneau (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (COUCHDB-1501) Add flag to the changes API to return only new changes
Date Fri, 22 Jun 2012 15:54:44 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-1501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13399396#comment-13399396
] 

Benoit Chesneau commented on COUCHDB-1501:
------------------------------------------

I was thinking we could have `/db/_changes?since=now` . Lot of users are using this pattern
and if it can be done in one request it would be cool. I don't see any reason to not have
it.

                
> Add flag to the changes API to return only new changes
> ------------------------------------------------------
>
>                 Key: COUCHDB-1501
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-1501
>             Project: CouchDB
>          Issue Type: New Feature
>          Components: JavaScript View Server
>    Affects Versions: 1.2
>            Reporter: Daniel Gonzalez
>            Priority: Minor
>              Labels: changes, http
>
> As discussed in this thread: http://mail-archives.apache.org/mod_mbox/couchdb-user/201206.mbox/%3CCAAOi-OHB6%3DYu%2Bt%3DWkiFAypQAfnv%3DQd-PL4tELZNL1C1-TQvtWw%40mail.gmail.com%3E
> I copy paste part of the conversation.
> ---
> I am subscribing to the _changes API. My database is quite big, and each time I restart
my client, I get all old notifications. I only need the new notifications, since the moment
that I subscribe to the feed.
> I have seen that there is a "since" parameter, but this is not helping me further, because
I do not know what is the last document sequence number. So I would need one of the following:
> - a method to get the last sequence number to use as value for "since"
> - a flag to tell the _changes API to just give me the changed *from now on*. This would
be the most clean solution, since it saves me a request to get the since parameter (which
can be outdated anyway very fast). Is there something like this?
> ---
> I ended up going the GET /dbname route
> I guess there is no specific flag for the _changes API to request future changes...
> ---

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