libnftables way of deleting a rule

[Arne Zachlod <arne@xxxxxxxxxxxxxx>]

Hi,

I'm porting a program (written in C) that currently uses iptables to 
nftables, trying to not change a lot of the internal concept of said 
program.
The program currently uses execute() calls and calls iptables directly 
via these. I wanted to at least use libnftables, and everything seems to 
works quite well, I just have a problem with deleting rules.
I read through the code of libnftables, but I couldn't find a way to get 
the handle of a rule I added. In iptables, this is no problem, you just 
give the rule again to delete it. In libnftables though I need the 
handle. Currently, I'm looking into libnftables-json, but I would prefer 
not to use it just to get the handles. Is there a better way of deleting 
a rule than parsing the JSON for them? Maybe even with libnftables directly?

Best Regards,
Arne