Custom logger/log format , module for event logging

I’m investigating using nginx to support a event logging framework.
Unfortunately, or events come in via a http post.

What I was looking at, was any way to use the standard access logs to
somehow log the post values?

If not, if there is some way to build a custom module, that could handle
the web requests and write out to the standard log file.

An obvious solution is to write a cgi-bin app that processes the http
posts, but I was hoping to use the built in nginx log, so I can use the
USR1 log rotate and built in stuff there…

THoughts or suggestions on building a highly available event logging
framework ?

Thanks,
Rooster

Posted at Nginx Forum: