I'm trying to implement API Composition in AWS API Gateway that is described here https://microservices.io/patterns/data/api-composition.html
I have to make two calls for different modules before sending the response.
In my mind, I would be able to add more than one Integration Request and join the results with Template Mapping, but I couldn't found any documentation neither someone who have done it.
Am I getting it wrong? Should I create my own Composition Layer in the application and API Gateway's role is just point to it?