OneTrial with Next.js (App Router)

html
<script src="https://onetrial.dev/v1.js" data-key="YOUR_PUBLIC_KEY" async></script>

js
// Signup form (browser): include the token in your POST
const token = await OneTrial.getToken();      // window.OneTrial is set by the snippet
OneTrial.markSubmit();                        // records time-to-submit
formData.append('visitorToken', token);

ts
// app/api/signup/route.ts
import { headers } from 'next/headers';
export async function POST(req: Request) {
  const { email, visitorToken } = await req.json();
  const ip = (await headers()).get('x-forwarded-for')?.split(',')[0] ?? '0.0.0.0';
  const userId = await createUser(email);
  const res = await fetch('https://onetrial.dev/api/v1/decisions', {
    method: 'POST',
    headers: { Authorization: `Bearer ${process.env.ONETRIAL_API_KEY}`, 'Content-Type': 'application/json' },
    body: JSON.stringify({ visitorToken, email, ip, userId }),
  });
  const d = await res.json();
  if (d.decision === 'deny') return showPaidPlanOrSupport();
  if (d.decision === 'challenge') return redirect(d.challengeUrl); // trial unlocks on the challenge.completed webhook
  createTrial(userId);
  return Response.json({ ok: true });
}