Nginx headers to be set at the time of request processing

[Sushma]

Hi all,

I understand that proxy_set_header sets headers before proxying the request
to the upstream server.
Is there some way I can set the headers at the time of request processing
itself not just before proxying to upstream servers?

Thanks,
Sushma

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,271147,271147#msg-271147