Mutual TLS aws api gateway

Hi, I want to implement mtls on aws api gateway. I want to use acm-pca as private CA and provide self signed certificates to my clients. I have set it up, however now I want to use the acm CRL with a lambda authorizer to check for client revocation and deny access. Check this:
https://medium.com/contino-engineering/mutual-tls-auth-with-aws-api-gateway-part-2-check-certificate-revocation-8b86538afe0