Error Handling

{
  "code": "0",
  "msg": "Success",
  "data": { ... }
}

Network timeout / E0001 / WaffoUnknownStatusError
    │
    ▼
Query using the original paymentRequestId
    │
    ├── PAY_SUCCESS found    → Update local status to success
    ├── ORDER_CLOSE found    → Update local status to failure
    └── Still unknown        → Wait for Webhook notification

import { WaffoUnknownStatusError, WaffoError } from '@waffo/waffo-node';

try {
  const response = await waffo.order().create(params);
  if (response.isSuccess()) {
    // code === "0", handle success
  } else {
    // API returned an error code (e.g. A0003), safe to treat as failure
  }
} catch (error) {
  if (error instanceof WaffoUnknownStatusError) {
    // Important: payment may have succeeded! Query before deciding
    const inquiry = await waffo.order().inquiry({ paymentRequestId });
    if (inquiry.isSuccess()) {
      const status = inquiry.getData().orderStatus;
      await updateOrderStatus(paymentRequestId, status);
    }
    // If the query also fails, wait for a Webhook
  } else if (error instanceof WaffoError) {
    // Client error (configuration, signature), safe to retry after fixing
    console.error('Client error:', error.errorCode, error.message);
  }
}