There are other design document functions which are being introduced at t=
he time of this writing, _update and _filter which we aren=92t convering in=
depth here. Filter functions are covered in the Change Notifications chapt=
er. Imagine a web service (A) that POSTs an XML-blob at a URL of your choos=
ing, when particular events occur. Paypal=92s instant payment notification =
is one of these. With an _update handler you can POST these directly at Cou=
chDB and it can parse the XML into a JSON document and save it. The same go=
es for CSV, multipart form, or any other format.
From http://books.couchdb.org/relax/design-documents/design-documents
typo: convering -> covering token=40859aae6b9645cadaaa9f68d22b1800login=janl