HTTP 402، عاد إلى الحياة.

import { paymentRequired, verifyPayment } from '@xo/bapara-sdk/server';

app.get('/inference', async (req, res) => {
  const pr = paymentRequired({
    amount:     '0.002',
    recipient:  process.env.WALLET!,
    facilitator: 'https://facilitator.bankai.cash',
  });

  const header = req.headers['x-payment'];
  if (!header) return res.status(402).json(pr);

  const check = await verifyPayment(header, {
    facilitatorUrl: pr.facilitator,
    expect: pr,
  });
  if (!check.ok) return res.status(402).json(pr);

  res.setHeader('X-Payment-Receipt', encode(check.receipt));
  res.json({ completion: await runModel(req.body) });
});

import { BaparaClient } from '@xo/bapara-sdk/client';

const client = new BaparaClient(wallet);

const res = await client.fetch('https://api.bankai.cash/inference', {
  method: 'POST',
  wallet,
  maxAmountUsdc: 0.10,
  body: JSON.stringify({ prompt: 'design a payment protocol' }),
  onReceipt: (r) => console.log('settled', r.txHash),
});