Node.js socket.io peer to peer communication for data sharing - node.js

Question

I'm trying to build a simple peer to peer data sharing platform using node-fetch and socket.io.
Given the sender and receiver's ip, the sender transmits data to the receiver's computer using node-fetch.
The receiver captures the data using socket.io and can reply using the 'req.host' ip.
The code runs fine but the message sent is not received at the /receive endpoint.
What could be the problem?
Is there a better way to do this?
const fetch = require('node-fetch'); // Data fetch feature
const socket = require('socket.io');
const client = require('socket.io-client');
const express = require('express');
var ip = require("ip");
var senderIP =`${ip.address()}; // Test IP
// Express configurations
const app = express()
const port = 60553 // Processing Port
// Send parameters
var pcURL=`http://${senderIP}:${port}/receive`;
app.get('/send', async (req, res) => {
var msg ='Hello from Vakindu!';
// Send Message
let sendMsg = await fetch(pcURL, {
method: 'POST',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json'
},
body: JSON.stringify({data: msg})
})
.then(() => {
return msg;
})
.catch(err => console.log(err));
res.end(sendMsg);
});
// Receive message
app.get('/receive', (req, res) => {
let newMsg='';
// Notification center
client(pcURL).on('', (msg) => {
newMsg=msg
});
res.end('New Message:'+newMsg);
});
// Port session listener
const server = app.listen(port, () => {
console.log(`P2P Network started on port ${port} ...!`)
})
// Socket setup
const io = socket(server);