.z.wo (websocket open)
Since v3.3t 2014.11.26
Called when a websocket connection to a kdb+ session has been initialized, i.e. after it's been validated against any -u/-U file and .z.pw checks.
The right argument is the handle and is typically used to build a dictionary of handles to session information like the value of .z.a, .z.u
For a complete list of functions, see the kdb+ Function Reference.