Hi, i'm using next-auth-v4 and i have a separate socket server (using socket-io) on which i want to add authentication, unfortunately the problem is that i'm not able to decrypt the token on a separate server using jsonwebtoken library and same secret. Then i looked upon the implementation of getToken from next-auth/jwt which in itself makes use of jose & @panva/hkdf library to encrypt & decrypt the token. I tried to isolate & create the decode function so that I could take the token from request and decrypt it and verify it in my socet server, but didn't work. Below is what i tried :-

import http from "http";
import express from "express";
import { Server } from "socket.io";
import jwt from "jsonwebtoken";

const app = express();
const server = http.createServer(app);
const io = new Server(server);
io.use(async (socket, next) => {
  const cookies = socket.handshake.headers.cookie.split(";");
  const token = cookies
    .find((cookie) => cookie.trim().startsWith("next-auth.session-token="))
    .split("=")[1];
  jwt.verify(
    token,
    process.env.NEXTAUTH_JWT_SECRET,
    { algorithms: ["HS512"] },
    (err, decoded) => {
      if (err) {
        console.log(err); // Error:  JsonWebTokenError: jwt malformed
        throw new Error("User is not authorized to access resources");
      }
      socket.request.user = decoded;
      next();
    }
  );
})

This doesn't seem to work, anyone help?