I have a Java Spring Boot web application deployed on an Azure App Service (not embedded Tomcat, but using App Service Tomcat PaaS). This application needs to make a call to a REST API, that is secured by mandating mutual authentication, i.e. with a client certificate.
I have the PFX file, and I don't have access to the environment to add the certificate to the keystore, truststore, etc.
Is there any way to call the REST API in Java, with just the client certificate, which possibly is part of the web application resources ?