I am pretty new to AWS API Gateway. Still exploring the platform. I have used it with lambda functions and everything works fine.
Now coming to the problem at hand, I have an existing set of APIs hosted on EC2 instances. My current requirement is to audit the APIs, set tokens for users, audit usage and charge accordingly.
What I got from reading the docs is that API gateway gives you such features out of the box. So what I want to know is can API Gateway be used as a proxy to my already existing backend API? If yes, can someone give me some references/guides which I can refer to during the implementation?
