Forum Discussion

Avinash1's avatar
Avinash1
Icon for Nimbostratus rankNimbostratus
Mar 03, 2020

Does Big IP change received post request to get ?

I have a client complaining that request coming from our application is in GET instead of POST , where as we are sending POST from application, not sure how it converted to GET, is this happening on Big IP (F5) LB and if yes is there way to fix this issue, probably by irule or another way ? I will be grateful if someone provide me a dynamic or multiple URLs irule

 

 

application delivery
BIG-IP
iRules

2 Replies

  • Samir's avatar
    Samir
    Icon for MVP rankMVP
    Mar 03, 2020

    Changing method is bit long process via iRule. I would recommend to check whether client is sending GET or POST method. Attach simple irule to vip.

    when HTTP_REQUEST {
  # Check the method
  log local0. "HTTP Method is [HTTP::method]"
}

    Try to tune the request from application side.

  • Beaker's avatar
    Beaker
    Icon for Cirrus rankCirrus
    Mar 03, 2020

    I have run into this before when you are redirecting traffic to port 443 using a 302, which is the response code used in HTTP::redirect in the F5. In order to preserve the method you need to issue a 307 for the redirect ( HTTP::responnd 307 Location https://your_url_here.com. vs HTTP::redirect https://your_url_here.com)