How to receive push notifications from another server?

MichMich

The MagicMirror contains a SocketIO server. You could connect to that server and push notifications on the module specific channel. It’s an undocumented feature, so you might need to digg into the code.

paphko

Thanks for the really quick answer! :-)
Do you have any hint in which files I could start digging?

paphko

I did some experiments but no success yet. Maybe you could clarify some things:

What do you mean by ‘module specific channel’? How does that work?
I tried to emit an event via a java application, but I don’t know which parameters to use so that the event is passed to my module?
Where is the code that processes incoming socket events?

I tried socket.io-java-client, but nothing happens on the server (log remains empty, module does not return anything):

public static void main(String[] args) throws Exception {
	Socket socket = IO.socket("http://raspi:8080"); // I also tried: http://raspi:8080/socket-test-module
	socket.connect();
	socket.emit("notification", "ping");
	socket.close();
}

Any ideas how to get a simple external socket client running?

strawberry 3.141

@paphko said in How to receive push notifications from another server?:

On the openhab side, I can easily add some arbitrary java code, for example to perform some http requests or to open and communicate via a socket connection to a specific IP.

in a module i forked from paviro, there is a functionality where you can make http requests to the module https://github.com/fewieden/MMM-syslog/blob/master/node_helper.js#L16

paphko

@strawberry-3.141 Awesome, thank you! That’s exactly what I was looking for :-)