[keycloak-user] Set up iOS app with Ninja server

I am trying to set up an iOS app that works with a Ninja (JVM/Java 8) server and keycloak. More info on ninja - http://www.ninjaframework.org/ I am using aerogear to get a jwt directly from the keycloak service. I then want to pass the jwt back to my ninja (JVM) back-end service. I know I can validate the token without hitting the keycloak service to some degree, but say I wanted to get the user info or verify the id of the token, and that it has not been revoked, how would I go about contacting the keycloak server? I am not using any sort of special security or signing on my jwt tokens. Do I use the authz or admin client? Any specific examples to look at? I tried to implement one of the adapters but did not have any luck. I was hoping to set up a simple example like https://github.com/keycloak/keycloak/blob/master/examples/authz/hello-wor... Except instead of getting the token using username/password I was hoping to use my jwt that I got from the front-end. Is this supported by the Java clients as is, or do I need to write my own? It seems like this is discouraged in favor of the server side adapters but I am just trying to get started by validating my tokens and was not able to get any of them working with ninja. Thanks.