[GitHub] [couchdb] stheobald opened a new issue #3086: Make req.body available to custom javascript filters in _changes

[GitBox <gi...@apache.org>]

stheobald opened a new issue #3086:
URL: https://github.com/apache/couchdb/issues/3086


   ## Summary
   The docs acknowledge that a list of doc_ids involved in a filtered replication can exceed the length available in req.query, and endorse using a POST method instead of GET in this case. doc_ids can be included in the req.body in this situation.
   
   req.body is currently ONLY read for the builtin filters (doc_id for example) and is not made available to custom javascript filters defined in _design docs. This means that any custom filter is subject to the length limitations of req.query, and cannot use req.body to work around this.
   
   ## Desired Behaviour
   req.body should be available for use in custom filters where a body is provided in the request to _changes.
   
   ## Additional context
   I have a situation where the number of doc_ids involved in my filtered replication can reach the limits imposed by req.query. I also need to use a custom filter to satisfy the business requirements in an efficient manner.


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[GitHub] [couchdb] stheobald commented on issue #3086: Make req.body available to custom javascript filters in _changes

[GitBox <gi...@apache.org>]

stheobald commented on issue #3086:
URL: https://github.com/apache/couchdb/issues/3086#issuecomment-675744901


   I have discussed this with @rnewson.


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