API Gateway SSL certificate for backend authentication for a Spring Boot REST API microservice

Hi,

Once you have generated a client cert in API console and configured API to use SSL certificates following the doc https://docs.aws.amazon.com/apigateway/latest/developerguide/getting-started-client-side-ssl-authentication.html , you will have to create a truststore including the client certificate generated on API Gateway. Then, you can configure the truststore for SSL verification from API Gateway to backend. Here is a helpful article to understand the implementation https://dzone.com/articles/hakky54mutual-tls-1