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I want to connect my local socket server to my script socket server.

here is my code: 

import WebSocket, { WebSocketServer } from "ws";
import http from "http";

const server = http.createServer();
const wss = new WebSocketServer({ server, path: "/api/v4.0/iink/document" });

wss.on("connection", (ws, ) => {
  console.log("Client connected");

  // Event handler for messages from the client
  ws.on("message", (message) => {
    const iws = new WebSocket(
      "wss://webdemoapi.myscript.com/api/v4.0/iink/document"
    );

    iws.on("error", (error) => {
      console.error("WebSocket error:", error);
    });

    iws.on("open", () => {
      console.log("WebSocket connection opened");
      console.log(JSON.parse(message.toString()));
      iws.send(message);
    });

    iws.on("message", (msg) => {
      
      ws.send(msg.toString());
    });

    iws.on("close", () => {
      console.log("WebSocket connection closed");
    });
  });

  // Event handler for closing the connection
  ws.on("close", () => {
    console.log("Client disconnected");
  });
});

const port = 8080;

server.listen(port, () => {
  console.log(`WebSocket server is listening on port ${port}`);
});

when I send a message using the Postman WebSocket client, it's connected to the server and gets back a response. see the below image.

{
  "type": "newContentPackage",
  "applicationKey":  "XXXX-XXXXXX-XXXXX-XXXX",
  "xDpi": 90,
  "yDpi": 90,
  "viewSizeHeight": 800,
  "viewSizeWidth": 1023
}

after sending an HMAC message, I get the error for my server.

this is the javascript code for computing the HMAC code. 

import pkg from 'crypto-js';
const {HmacSHA512, Hex} = pkg;



const APPLICATIONKEY = ""
const HMACKEY = ""

export function computeHmac (input, applicationKey= APPLICATIONKEY, hmacKey = HMACKEY) {
  const jsonInput = (typeof input === 'object') ? JSON.stringify(input) : input

  return new HmacSHA512(jsonInput, applicationKey + hmacKey).toString(Hex)
}



console.log(computeHmac("cbfca330-e1ce-4b51-8afe-d2763c36e3ab"));

{
  "type": "hmac",
  "hmac": "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
}

  
Error:

but when I connect direct Myscript server ->  wss://webdemoapi.myscript.com/api/v4.0/iink/document

then the same HMAC code and other things work perfectly, not getting any errors.