Migrate from Turnstile to CaptchaLa

<div class="cf-turnstile" data-sitekey="YOUR_SITE_KEY"></div>
<script src="https://challenges.cloudflare.com/turnstile/v0/api.js" async defer></script>

<button id="login-btn">Sign in</button>
<script src="https://cdn.captcha-cdn.net/captchala-loader.js"></script>
<script>
  loadCaptchala(() => Captchala.init({ appKey: 'YOUR_APP_KEY', action: 'login' })
    .onSuccess(res => onToken(res.token))
    .bindTo('#login-btn'));
</script>

const res = await fetch('https://challenges.cloudflare.com/turnstile/v0/siteverify', {
  method: 'POST',
  headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
  body: new URLSearchParams({
    secret: process.env.TURNSTILE_SECRET,
    response: req.body['cf-turnstile-response'],
  }),
})
const data = await res.json()
if (!data.success) return res.status(400).json({ error: 'bot' })

const res = await fetch('https://apiv1.captcha.la/v1/validate', {
  method: 'POST',
  headers: {
    'X-App-Key': process.env.CAPTCHALA_APP_KEY,
    'X-App-Secret': process.env.CAPTCHALA_APP_SECRET,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({ pass_token: req.body['captchala-token'] }),
})
const { data } = await res.json()
if (!data || !data.valid) return res.status(400).json({ error: 'bot' })