how to check nginx has really sent response?

[Phani Sreenivasa Prasad]

Hi 

I am using fastCGI for my application to talk to nginx. I have a requirement
such that when my application processes request and sent the response ,
would like to check whether nginx also sent response successfully to client.
?

How can this be achieved? Is there a way I can register a callback with
nginx with any of its directives?

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,270426,270426#msg-270426