When my API proxy receive a MTLS request that contains only the leaf certificate, and not the full certificate chain, I need to get Issuer certificate from the apigee truststore for the client cert in the request.
Is there any way I can access the Apigee keystore within the API proxy and export the certificate from it.
I dont want to use the ServiceCallout policy and call the management API to export the cert as this is documented as an Anti Pattern.