Retrieves a transaction via it's paid merchant order
{- "_id": "tran_aTIu2DC5ICh3lsBb",
- "merchantId": "mcht_aTIu2DC5ICh3lsBY",
- "customerId": "cust_aTIu2DC5ICh3lsBZ",
- "merchantOrderId": "ordr_aTIu2DC5ICh3lsBc",
- "transactionPayType": {
- "payCardId": "card_aTIu3DC5ICh3lsB0"
}, - "amount": 0,
- "currency": "AUD",
- "surchargeAmount": 0,
- "status": "accepted",
- "statusBeforeDispute": "accepted",
- "lastChargeId": "chrg_aTIu2DC5ICh3lsBd",
- "refundedAmount": 0,
- "payoutId": "payout_aTIu2TC5ICh3lsBk",
- "createdAt": "2019-08-24T14:15:22Z",
- "updatedAt": "2019-08-24T14:15:22Z",
- "fee": 0
}