AWS Cloudfront

I'm using Cloudfront to power my dynamic contents & API. (All my other servers are managed on AWS). However I come to this issue where my API calls cannot be parsed through using HTTPS and only HTTP. All my SSL certs are done properly, and if I access the website using HTTPS it works perfectly fine. Only when it comes to API Calls there is issue with HTTPS. I need someone who is able to work now (and using remote desktop connection - Teamviewer) to help rectify the HTTPS issue. I am suspecting it's doing forwarding.