Hi Jonathan,

User authorization for Gremlin Server was introduced in TinkerPop 3.5.0, see https://tinkerpop.apache.org/docs/current/reference/#authorization

JanusGraph will use TinkerPop 3.5.x in its upcoming 0.6.0 release. If you want, you can already build the 0.6.0-SNAPSHOT distribution archives from master, using:

mvn clean install -Pjanusgraph-release -Dgpg.skip=true -DskipTests=true

Best wishes,     Marc