See: https://vertx.io/

I already made a PR here: https://github.com/vert-x3/vertx-auth/pull/215 , but the Vertx owners suggest we maintain the middleware in our own org, so we will put the code here: https://github.com/jcasbin/vertx-authz

We can refer to the code in the above PR and deliever a better vert.x middleware at: https://github.com/jcasbin/vertx-authz