Metadata

When you connect to Diffusion® by opening a session, the session is assigned a set of properties. These properties are assigned either by Diffusion® or by an authentication handler. They can be used by clients to filter the set of connected client sessions to take actions on.

For example, you could use session properties to send messages to a particular set of users via request/response messaging, or create a metric collector that groups sessions based on a common properties.

A client can request certain properties, but do not have the authority to assign them. It would be down to the authentication handler