Check transaction status

GET /isw/payments/checkStatus
```http

Retrieve the current status of a payment transaction using its request reference. Use this endpoint to check whether a payment has been successfully processed, is pending, or has failed.

## Authentication

This endpoint requires authentication. Include your API credentials in the request headers.

## Query parameters

<ParamField query="requestReference" type="string" required>
  The unique reference of the transaction to check
</ParamField>

## Response

Returns a JSON string containing the transaction status information.

<ResponseField name="responseCode" type="string">
  Code indicating the query result
</ResponseField>

<ResponseField name="responseMessage" type="string">
  Message describing the status query outcome
</ResponseField>

<ResponseField name="transactionStatus" type="string">
  Current status of the transaction (e.g., SUCCESS, PENDING, FAILED)
</ResponseField>

<ResponseField name="transactionReference" type="string">
  Reference assigned to the transaction
</ResponseField>

<ResponseField name="amount" type="number">
  Transaction amount
</ResponseField>

<ResponseField name="customerId" type="string">
  Customer identifier associated with the transaction
</ResponseField>

<ResponseField name="paymentCode" type="number">
  Payment code used in the transaction
</ResponseField>

<ResponseField name="transactionDate" type="string">
  Date and time when the transaction was processed
</ResponseField>

## Example

```bash
curl -X GET "https://api.example.com/isw/payments/checkStatus?requestReference=038938738738" \
  -H "Authorization: Bearer YOUR_API_KEY"
```http