Hi,
I am fairly new to CouchDb and loving it so far. I think this database is
shockingly underated. I love the "Relax" approach and the design choices that
have been done, and I hope things will continue with the same philosophy.
I couldn't find if this has been discussed before but I was thinking that it
would be extremely cool to be able to setup triggers that POST arbitrary json
to arbitrary endpoints. I think this would be a killer feature if there was
built-in support for that - and seems to fit well with the HTTP approach of
couch.
So basically, this would be about allowing us to add an arbitrary number of
triggers to any view. Each trigger would be called only if the view emitted
"something" and the trigger would receive the document passed as a parameter to
the view (this is to take advantage of the update frequency of views) Then in
terms of posting, there could be a new built-in javascript function calling
curl behind the scenes which can be called from the triggers.
For the same purpose, it would be interesting to introduce configuration
documents at the database level whose properties could be accessed from these
triggers (I'm thinking of situations when one would need to call a different
URL when in testing, staging, production etc...)
In terms of use case, this would allow us to do things as diverse as sending
email notifications, and maintenance tasks. More generally, this would
eliminate the need for most of the maintenance jobs out there while making
these systems much more efficient by removing the need to run jobs at arbitrary
times even when this is not necessary. Also, since most web frameworks are
asynchronous and process each request in a different thread, this would be a
way to easily parallelize certain operations.
I just wanted to know if there was any chance to see this come out one day or
if this would be a "no-go" for design of philosophical reasons.
Cheers,
Reddy
