The WebSocket API Developer Guide contains some great reference material, examples and message details used within the Websocket interface. However, there are some areas where I need more information. While I can puruse the examples and determine how functionality works, it would be useful to have such details documented. Things that standout that would be helpful.

• Is there anymore information around the service name or service ID?

When using other market data APIs, the developer can see the available services from the connected ADS. Is this information available programmatically?

• The examples utilize some kind of keep-alive protocol using ping messages.

When receiving a login response, I can see elements such as: ClientToServerPingInterval etc.

• What domains are supported?

The developer guide only references a few but it's not clear what is supported and the structure/request associated with each.

• The examples define that a subprotocol ("tr_json2") is required upon a connection. I don't see this documented anywhere.

Note: I'm not asking for the answers to these questions, but rather if there is or will be documentation that will answer questions like these.