server.js

var express = require('express');
var bodyParser = require('body-parser');
const jwt = require('express-jwt');
const jwksRsa = require('jwks-rsa');

var app = express();
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));

const jwtCheck = jwt({
  secret: jwksRsa.expressJwtSecret({
    cache: true,
    rateLimit: true,
    jwksUri: `https://idee.auth0.com/.well-known/jwks.json`
  }),

  // Validate the audience and the issuer.
  audience: 'https://slack-clone/',
  issuer: `https://idee.auth0.com/`,
  algorithms: ['RS256']
});

// Fetch all users in ChatKit instance
app.get('/users', jwtCheck, (req, res) => {
  res.status(200).send([]);
});

app.listen(3001, () => {
  console.log('listening on port 3001');
});