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Issue with NO_LTIK_OR_IDTOKEN_FOUND

See original GitHub issue

Greetings! I am using a MERN stack and have been trying to connect ltijs to Coursera for a few days now. I have my mongodb running in port 5000 and the frontend is in port 3000. The first issue is lti.deploy() has a conflict with port 3000, (I assume that is the default), I can change port, but i am not sure if that is the right thing to do? The other issue is that Coursera asks for a Public Tool Key and I was not sure where that comes in when using ltijs. Here is my code for reference:

const express = require("express");
const lti = require('ltijs').Provider;
const api = express.Router();
const uri = require('../../config/keys').mongoURI;
const password = require('../../config/keys').secretOrKey

//Configuration to register tool with coursera.
let consumerAuthorizationconfig = {
  method: "JWK_SET",
  key: "https://api.coursera.org/api/lti/keyset"
};

let consumerRedirectURL = <platform url> + "/project/submit";
let consumerAccessTokenURL = "https://api.coursera.org/api/lti/auth/accessToken/475~onehouraiorg";
let consumerAuthorizationURL = "https://api.coursera.org/api/lti/auth/token";
let consumerToolClientID = "cgAt5uT5Q6iALebk-XOoRg" ;
let consumerName = "coursera";
let consumerUrl = "https://coursera.org";

// Setup provider -
lti.setup("LTIKEY", // Key used to sign cookies and tokens
  { // Database configuration
    url: uri,
    connection: {} // optional
  },
  { // Options
    appRoute: '/', loginRoute: '/login', // Optionally, specify some of the reserved routes
    cookies: {
      secure: false, // Set secure to true if the testing platform is in a different domain and https is being used
      sameSite: 'None' // Set sameSite to 'None' if the testing platform is in a different domain and https is being used
    },
    devMode: true // Set DevMode to false if running in a production environment with https
  }
)
const setup = async () => {
  // Configure main routes
  lti.appRoute('/')
  lti.loginRoute('/login')
  // issue with port
  await lti.deploy({port: 8000}); // issue with port 3000 in use
  // Register platform
  let platform = await lti.registerPlatform({
    url: consumerUrl,
    name: consumerName,
    clientId: consumerToolClientID,
    authenticationEndpoint: consumerAuthorizationURL,
    accesstokenEndpoint: consumerAccessTokenURL,
    authConfig: consumerAuthorizationconfig
  })
  // Set connection callback
  lti.onConnect((connection, request, response) => {
    // Call redirect function
    console.log('on the connect option', response);
    lti.redirect(response, '/');
  })
}
setup();

Write now I am getting the following error and not sure how to proceed.

{“status”:401,“error”:“Unauthorized”,“details”:{“description”:“No Ltik or ID Token found.”,“message”:“NO_LTIK_OR_IDTOKEN_FOUND”,“bodyReceived”:{}}}

Coursera requests from my tool: Launch URL, Auth Request URL, Redirect URIs, and a Tool Public Key.

It has given me the following: