You now have the option to create topic and pattern based ACL rules from the control panel. ACL rules can be specified in order to allow or not allow a client to publish and/or subscribe to a specific topic. Like before, topic ACLs are applied to a given user, while pattern ACLs is applied to all users that match the given pattern.
When a client subscribes to a topic it can subscribe to a given topic name or it can subscribe to more topics at once by using wildcards. A wildcard can only be used when subscribing to topics and is not permitted when publishing a message. We allow single level and multi level wildcards. You can use # for multi level wildcard ACL and use + for single level wildcard acl.
Please note that creating and deleting users and ACLs are asynchronous tasks and may take up to a minute. Poll list APIs to see when the ACL is ready to use. API docs can be found here.
