It's undocumented, but you can do that with post_action:

   location /foo/ {
      ...
      post_action @mirror_request;
   }
   location @mirror_request {
      proxy_pass ...;
   }

Thank you so much! That looks perfect.

You can do it using the nginx-lua module, something like:

`local response = ngx.location.capture("/some/api/endpoint" )`

I would not recommend doing this, though. Nginx internals are rather complicated in my experience.

Thanks!

So better off to just log to a file and monitor the tail of that and send the data off with a seperate script?

Syslog

But you really don't want to do that if you need accurate log collection and aggregation. Having a local log file is essential to coping with backpressure from the log consumers. Consider what might happen if the remote syslog server goes down or is overburdened.