curl https://api.settlx.io/api/v1/invoices/a1b2c3d4-e5f6-7890-abcd-ef1234567890/settlement \
  -H "Authorization: Bearer pk_live_your_api_key"

const invoiceId = 'a1b2c3d4-e5f6-7890-abcd-ef1234567890';
const response = await fetch(`https://api.settlx.io/api/v1/invoices/${invoiceId}/settlement`, {
  headers: { 'Authorization': 'Bearer pk_live_your_api_key' }
});

if (response.status === 404) {
  console.log('Invoice not yet settled');
} else {
  const { data } = await response.json();
  console.log(`Settlement status: ${data.status}`);
}

{
  "data": {
    "id": "d4e5f6a7-b8c9-0123-def0-456789012345",
    "invoiceId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
    "amount": "98.49",
    "grossAmount": "99.99",
    "currency": "USDT",
    "chain": "ethereum",
    "transactionHash": "0xdeadbeef1234567890...",
    "merchantWallet": "0xYourWallet...",
    "status": "completed",
    "initiatedAt": "2024-01-15T10:05:00.000Z",
    "completedAt": "2024-01-15T10:06:30.000Z",
    "failedAt": null,
    "createdAt": "2024-01-15T10:04:30.000Z",
    "updatedAt": "2024-01-15T10:06:30.000Z"
  }
}

{
  "error": "Not Found",
  "message": "No settlement found for this invoice"
}

{
  "error": "Forbidden",
  "message": "Invoice not accessible"
}