@rico24 and here is an updated node_helper, that rejects connecting clients if they don’t send the right kind of identifier (ends with a digit)

var NodeHelper = require('node_helper'); var request = require('request'); module.exports = NodeHelper.create({ initial_counter:10000, start: function() { this.countDown = {} }, isDigit: function(x){ return (x>='0' && x< ='9') // watch out for spaces after < , forum hides it all }, socketNotificationReceived: function(notification, payload) { console.log("Payload: =" + JSON.stringify(payload)); switch(notification){ case "DO_YOUR_JOB": if(this.isDigit(payload.identifier.slice(-1))){ if(!this.countDown.hasOwnProperty(payload.identifier+this.ourpage)){ this.countDown[payload.identifier]=this.initial_counter; } let return_payload={identifier: payload.identifier, value:(this.countDown[payload.identifier] - payload.value)} this.sendSocketNotification("I_DID",return_payload ) console.log("Payload 2: = " + JSON.stringify(return_payload)); } else this.sendSocketNotification("I_DID_REJECTED_INVALID_IDENTIFIER",payload ) break } }, });

Thanks! I will update when the module is published.
First I need to solve some issues :)