You are viewing the documentation for the 1.x branch of the WebSocket Server package which has not yet been released. Be aware that the API for this version may change before release.
Update Topic Subscriptions Middleware
The BabDev\WebSocket\Server\WAMP\Middleware\UpdateTopicSubscriptions class is a server middleware which updates the topic registry as connections are opened and closed.
Position in Middleware Stack
It is recommended that this middleware is decorated by the BabDev\WebSocket\Server\WebSocket\Middleware\ParseWAMPMessage middleware in your application (see the message flow section from the architecture documentation to see the recommended stack with all optional middleware), however it can be decorated by any WAMP server middleware.
It is also recommended that this middleware decorates the use BabDev\WebSocket\Server\WAMP\Middleware\DispatchMessageToHandler middleware, but it can decorate any WAMP server middleware.