Integre pagamentos PIX com clareza e segurança.

const response = await fetch('https://www.goupay.com.br/api/v1/pix', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'x-api-key': process.env.GOUPAY_API_KEY
  },
  body: JSON.stringify({
    amount: 2990,
    description: 'Pedido #42',
    customer: {
      name: 'Maria Souza',
      email: 'maria@email.com',
      cpf: '12345678900',
      phone: '11999999999'
    }
  })
});

const data = await response.json();
if (!response.ok) throw new Error(data.error);

console.log(data.transaction_id);
console.log(data.pix.qr_code);

const response = await fetch(
  `https://www.goupay.com.br/api/v1/pix/${transactionId}`,
  {
    headers: {
      'x-api-key': process.env.GOUPAY_API_KEY
    }
  }
);

const payment = await response.json();
if (!response.ok) throw new Error(payment.error);

if (payment.status === 'paid') {
  await liberarPedidoUmaVez(payment.transaction_id);
}

async function aguardarPagamento(transactionId, timeoutMs = 600_000) {
  const inicio = Date.now();

  while (Date.now() - inicio < timeoutMs) {
    const response = await fetch(
      `https://www.goupay.com.br/api/v1/pix/${transactionId}`,
      { headers: { 'x-api-key': process.env.GOUPAY_API_KEY } }
    );

    if (response.status === 429) {
      const espera = Number(response.headers.get('Retry-After') || 60);
      await new Promise(resolve => setTimeout(resolve, espera * 1000));
      continue;
    }

    const payment = await response.json();
    if (payment.status === 'paid') return payment;
    if (['failed', 'refunded', 'chargeback'].includes(payment.status)) {
      throw new Error(`Cobrança finalizada como ${payment.status}`);
    }

    await new Promise(resolve => setTimeout(resolve, 5000));
  }

  throw new Error('Tempo limite de consulta atingido');
}

<img
  src="{qr_code_url}"
  alt="QR Code para pagamento via PIX"
  width="240"
  height="240"
/>

<label for="pix-code">PIX copia e cola</label>
<input id="pix-code" value="{qr_code}" readonly />

<button
  type="button"
  onclick="navigator.clipboard.writeText(
    document.getElementById('pix-code').value
  )"
>
  Copiar código
</button>

import express from 'express';

const app = express();
app.use(express.json());

app.post('/webhooks/goupay', async (req, res) => {
  const { event, data } = req.body;

  try {
    if (event === 'order.paid') {
      // Confirme o status na API antes de liberar o pedido.
      const response = await fetch(
        `https://www.goupay.com.br/api/v1/pix/${data.transaction_id}`,
        {
          headers: {
            'x-api-key': process.env.GOUPAY_API_KEY
          }
        }
      );

      const payment = await response.json();
      if (payment.status === 'paid') {
        await liberarPedidoUmaVez(payment.transaction_id);
      }
    }

    return res.sendStatus(200);
  } catch (error) {
    console.error('Falha ao processar webhook', error);
    return res.sendStatus(500);
  }
});