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The flow is:
* send http.request() to "ping" the server, and if it's accessible
* open the websocket via wss

Then, if the websocket connection breaks (e.g. the server restarts) the flow starts over again and the http ping throws the out of memory.

Recently I switched my server over to wss:// protocol and upon re-connection I get "Out of memory" errors. Just before connecting to a ws(s) endpoint, a short http-ping request is made to ensure server's accessibility. The code looks like: function connect() { var self = this; http.request...

rgr, thats what I thought

I just discovered, that the
sends no ping's. That leads to the connection termination by Nginx after a timeout.

Is there any way to send WS-pings out of the box?

I have a callback for device state change controller.devices.get( 'ZWayVDev_zway_' + someId ).on( 'change:metrics:level', self.stateChangeHandler ); and it's working just fine. Now I want to listen to other events like device adding or removal. How can I do it? I searched the ref-doc, but found no g...

Then how can I call it and how can it work like charm?

Update:
`ws.push()` is undefined as of 2.2.2

Thanks, Patrick, your code works perfectly. There is some inconsistency in the API though (ver. 11.04.2016 v2.2.2). I tried the performCommand() before: dev.performCommand( 'exact', {"r":123,"b":255,"g":41} ); but was scared off with the not-a-number error: [2016-10-26 ...

I have a switchRGBW ligtht bulb and I'm trying to change it's color like so: var dev = controller.devices.get( 'ZWayVDev_zway_' + k ); dev.set( 'metrics:color', {"r":11,"g":22,"b":33} ); but it doesn't work. I mean, the "metrics:color" value gets changed, but ...

What's the difference between `ws.push()` and `ws.send()`?

Thanks, you pointed me to the right direction!
I ended up using this:
As soon as `cat` was not registered in `.syscommands`, I put it in and it worked like charm