Transaction History

{
  "executionMode": "sponsored",
  "transactionId": "550e8400-e29b-41d4-a716-446655440000",
  "status": "pending"
}

async function waitForConfirmation(walletId: string, transactionId: string) {
  const start = Date.now();
  let delayMs = 2000;
  const timeoutMs = 10 * 60 * 1000;

  while (Date.now() - start < timeoutMs) {
    const res = await fetch(
      `https://api.beta.getpara.com/v1/wallets/${walletId}/transactions/${transactionId}`,
      { headers: { 'X-API-Key': process.env.PARA_API_KEY! } },
    );
    if (!res.ok) throw new Error(`Transaction lookup failed: ${res.status}`);
    const record = await res.json();

    if (record.stage === 'requires_action' || record.stage === 'delivery_unverified') return record;
    const historicalTimeout = record.status === 'failed' && record.failureStage === 'monitor_timeout';
    if (!historicalTimeout && ['confirmed', 'reverted', 'failed'].includes(record.status)) {
      return record;
    }
    await new Promise((r) => setTimeout(r, delayMs));
    delayMs = Math.min(delayMs * 1.5, 15000);
  }
  throw new Error('timed out waiting for confirmation');
}

app.post("/webhooks/para", express.raw({ type: "application/json" }), async (req, res) => {
  if (!verifyParaWebhook(req.body, req.headers, process.env.PARA_WEBHOOK_SECRET)) {
    return res.status(401).send("Invalid signature");
  }

  const event = JSON.parse(req.body.toString("utf8"));

  if (event.type === "rest.transaction.confirmed" || event.type === "rest.transaction.failed") {
    const lookup = await fetch(
      `https://api.beta.getpara.com/v1/wallets/${event.data.walletId}/transactions/${event.data.transactionId}`,
      { headers: { "X-API-Key": process.env.PARA_API_KEY! } },
    );
    if (!lookup.ok) return res.sendStatus(503);
    const record = await lookup.json();
    await db.transactions.update(event.data.transactionId, {
      status: record.status,
      txHash: record.hash,
      blockNumber: record.blockNumber,
      failureStage: record.failureStage,
      failureCode: record.failureCode,
      failureMessage: record.failureMessage,
      monitoring: record.monitoring,
      resolvedAt: record.resolvedAt,
    });
  }

  res.sendStatus(204);
});