Rails - Sep 2008 - Best way to send JSON request/get a response from controller?

Hello Friends,

What is the best way to send json from your controller, and await for a
response? Ajax? Ruby''s net/http?

The JSON server that I am sending the request to only accept POST methods,
and sends a POST back. If I use Ajax, is it possible to get the POST
response? Is there a scriptaculous or YUI function that handles this well?

Thank you for your help -

Jin

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