HAProxy Response parsing


#1

Hello
We have an application which throws custom error codes instead of standard HTTP Error codes(500,4xx). All the request go to this application via an HAproxy . Is there a way we can capture the response xml body, look for that custom error code and write to logs?


#2

Any help is appreciated on this matter.


#3

Not with internal functionality of haproxy.

There may be a way with LUA, and you can read more about this here:
https://www.arpalert.org/haproxy-lua.html

But that means you need to invest some time into this, there are no solutions ready for deployment as far as I can tell.