nginx postaction

Some time ago I thought how is it possible to count downloaded files from resource. I mean, you have a set of files and you need to gather some real-rime statistics on file downloading or just page visiting. I know it's easy to analyze log file. But what if it doesn't enough for you and you want to trigger some another service... with ngnix solution is pretty simple

There is post action functionality that makes ability to call any resource after another resource was called. It is like TRIGGER in regular RDBMS, so simple and self-described example:

	location / {
	root /usr/domain.com/nginx/html;
	index index.jsp;
	post_action /aftertouching;
	}
	location /aftertouching {
	proxy_pass http://10.25.0.11/count.do?resource=$request&status=$request_completion&fromIp=$remote_addr&body_bytes_sent=$body_bytes_sent;
	internal;
	}

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