I have a VPC with multiple private API Gateways. This is so services within the VPC can call other private APIs without leaving VPC.
I have a Public API Gateway that I want my clients to engage with, but I want this Public API Gateway to have it's requests handled by the appropriate private API Gateway.
It doesn't appear that it is trivial to achieve the design I have imagined. Am I missing something? Are there alternate patterns that I should investigate?
I have tried to implement the above design, however the network load balancer requires a target group. It doesn't seem possible to register a target that is a private API Gateway. I have tried to register the VPC Endpoint IPs for the private API gateway, but health checks fail and traffic isn't routed appropriately.
I have also considered using App Mesh to handle this kind of routing, but I do not necessarily want to ship an Envoy proxy layer with each of my lambdas.