How to figure out what download tool is sending

[gesh2112]

I have been trying to figure out what download is sending to an internal server.  I am using API and I know that download uses the curl on the backend.  I have it connecting but am getting this error back.  Panic Recovery err=runtime error: invalid memory address or nil pointer dereference

Is there a way in a log file or the Designer what is getting passed to curl?

[Felipe_Ribeir0]

Hi @gesh2112 

You can use fiddler to do that : https://www.telerik.com/download/fiddler

Keep it open while you run the workflow and you will be able to see exactly what you are sending/receiving.

[gesh2112]

Sorry, I should have said I tried Fiddler but since the server sits inside our firewall nothing shows up in Fiddler.  Do you know if I need to change something inside of Fiddler or use something else?

[Felipe_Ribeir0]

Unfortunately i dont know, lets see if someone else can help. But i would say that with Alteryx itself you will not be able to see this, just with external tools.