How to force CGI cache purge on POST?

Ed W lists at
Wed Feb 18 17:21:05 UTC 2015

Hi, I have a very simple website which could benefit from enabling cgi 
caching.  However, occasional updates are made to the site, exclusively 
via a POST request.

For my simple purposes it would be sufficient to expire the entire cache 
on any POST request (few hundred pages cached).  How might I trigger 
this to happen without modifying the backend CGI? ie is it possible to 
make an nginx location which can trigger fastcgi_cache_purge on any POST 

Thanks for any thoughts

Ed W

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