fail2ban & cloudflare - help pls?

[OctoDev]

I found this, and it worked perfectly when I did not use CloudFlare: https://rtcamp.com/tutorials/nginx/fail2ban/

However, I am currently using CloudFlare. I did some re-search and I found that these two commands would work to ban and unban:

actionban = curl -s "https://www.cloudflare.com/api.html?a=ban&key=<ip>&u=<account>&tkn=<token>"
actionunban = curl -s "https://www.cloudflare.com/api.html?a=nul&key=<ip>&u=<account>&tkn=<token>"

Does anyone know how I could use https://rtcamp.com/tutorials/nginx/fail2ban/ configuration, with CloudFlare API? 

I will obviously replace the toke and account my self.

Note:
- I am using nginx, where I limit requests also forward the real IP using set_real_ip_from. The reason why it was not working, was most likely because iptables can not see the real ip when user access, but fail2ban can using the access log.

[OctoDev]

I found out how, was quiet easy.

[Out123]

Post info plz, for all. Thanks.