WebSocketConnectionSubProtocols Property
The subprotocols (application-level protocols layered over the WebSocket Protocol) sent by the client in the initial WebSocket connection request.
Syntax
websocketserver.getWebSocketConnectionSubProtocols(index, [callback])
Default Value
""
Callback
The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).
The callback for the getWebSocketConnectionSubProtocols([callback]) method is defined as:
function(err, data){ }
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'data' is the value returned by the method.
The callback for the setWebSocketConnectionSubProtocols([callback]) method is defined as:
function(err){ }
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'err' has 2 properties which hold detailed information:
err.code err.message
Remarks
The subprotocols (application-level protocols layered over the WebSocket Protocol) sent by the client in the initial WebSocket connection request.
The index parameter specifies the index of the item in the array. The size of the array is controlled by the WebSocketConnectionCount property.
This property is read-only and not available at design time.
Data Type
String