dailpad_cti/utils/websocket.utils.js

/**
*@Author Nishant Tiwari
*Websocket implementation
**/
const { Client, Message } = require('@stomp/stompjs');
const fs = require('fs');
var client = undefined;
let websocket = require("ws");
Object.assign(global,websocket);
var wsrootTopic;
const initWebsocket = () =>{
	let data = "";
	try{
		data = fs.readFileSync('../../../messaging-config.xml',{ encoding: 'utf8', flag: 'r' });
		let wsURL= getTagValue(data,"webSocketURL");
		 wsrootTopic = getTagValue(data,"rootTopic");
		if(wsURL && wsrootTopic){
		client = new Client({
		  brokerURL: wsURL,
		  connectHeaders: {
			username:"ivisionClientCore"
		  },
		  onConnect: () => {
			console.log("Connected : ",wsURL,wsrootTopic);
			//client.subscribe(wsrootTopic, message =>
				//console.log(`Received: ${message.body}`)
			  //);  
		  },
		});
			
		}else{
			console.error("Invalid or Empty WebSocket URL/RootTopic");
		}
	}catch(err){
		console.error("Error while initiating Websocket:"+err.code,err);
		throw err;
	}
client.activate();
}

const sendMessageToWs = (topic,payload)=>{
	console.log("Im here",wsrootTopic);
	if (!client.connected) {
        console.error("Broker disconnected, can't send message.");
        return false;
      }
      if (payload && topic) {
		let headers = {sender:process.env.APP_NAME,destination:topic,messageType:"Dialpad_Webhook_Events"};
        client.publish({destination: wsrootTopic+"/"+topic, body: JSON.stringify({header:headers,messageData:payload})});
      }
      return true;
}

function getTagValue(data,tag){
	return data.match("(?<=<"+tag+">).*(?=<\/"+tag+">)")[0];
}



module.exports = {client,initWebsocket,sendMessageToWs}