> ## Documentation Index
> Fetch the complete documentation index at: https://docs.reeple.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Sandbox / Testing

> Test the full checkout flow before going live

Set `mode: 'sandbox'` to use Payshiga's test environment. Use test card numbers provided by Payshiga to simulate payments without real money moving.

```javascript theme={null}
const reeple = new Reeple({
  publicKey: 'pk_test_your_sandbox_key',
  mode: 'sandbox',
  // ... rest of config
});
```

<Warning>
  Use a `pk_test_...` key with `mode: 'sandbox'`, and a `pk_live_...` key with `mode: 'production'` (the default). Mixing a live key with sandbox mode, or vice versa, will not work as expected.
</Warning>

## What to test before going live

* **Success path** — complete a test payment and confirm `onSuccess` fires and your server-side verification (see [Callbacks & Verification](/callbacks-and-verification)) marks the order paid.
* **Close path** — open the modal and close it without paying; confirm `onClose` fires and your UI handles it gracefully.
* **Error path** — trigger a failure (e.g. an invalid key) and confirm `onError` fires with a useful message.

<Tip>
  For test card numbers and other sandbox environment details, contact Reeple — this is provided as part of onboarding.
</Tip>