redirect.mjs

import express from 'express';
const app = express()
const port = 3000

app.get('/', async (req, res) => {
  res.redirect('https://www.arcgis.com/sharing/rest/oauth2/authorize/?client_id=XXXXX&redirect_uri=https://hhkaos.github.io/arcgis-oauth-callback/&response_type=code&code_challenge=qaXuju2sX8lKLvErIKHfdrg0h7DLvSeLuErfsfMJFj4&code_challenge_method=S256')
})

app.listen(port, () => {
  console.log(`Example app listening on port ${port}`)
})