Looking for FS and Https modules Alternatives for custom app development

Hi Team ,

we are developing a custom app which requires two way SSL authentication . For this we tried to use FS module to read and pass the security certificate.

Unfortunately both FS and https modules are not allowed by FDK due to security reasons . do we have any alternatives for this modules which are allowed by freshworks .

Any help on this would be much appreciated .

Regards,
Ganesh.