Single-Method APM Checkout

curl --location --request POST 'https://sandbox-acq.onerway.com/txn/payment' \
--header 'Content-Type: application/json' \
--data-raw '{
    "billingInformation": {
        "address": "5480 Mohr Ramp",
        "city": "Taylorsville",
        "country": "GB",
        "email": "Aisha70@hotmail.com",
        "firstName": "Modesta",
        "identityNumber": "91758287128",
        "lastName": "O'\''Reilly",
        "phone": "14136623459",
        "postalCode": "73117",
        "province": "CO"
    },
    "merchantCustId": "CustId-A2KA-70CC",
    "merchantNo": "800515",
    "merchantTxnId": "{{auto-generated-uuid}}",
    "merchantTxnTime": "2025-06-26 14:43:18",
    "orderAmount": "1",
    "orderCurrency": "USD",
    "shippingInformation": {
        "address": "6219 Noemie Union",
        "city": "Vaughnview",
        "country": "US",
        "email": "Kurt37@yahoo.com",
        "firstName": "Ryleigh",
        "identityNumber": "80718863714",
        "lastName": "Lindgren",
        "phone": "18788839073",
        "postalCode": "98703-3434",
        "province": "CO"
    },
    "sign": null,
    "txnOrderMsg": {
        "accept": "*/*",
        "appId": "1968187301902553088",
        "colorDepth": "32",
        "contentLength": "16384",
        "javaEnabled": true,
        "language": "en-US",
        "products": [
            {
                "currency": "USD",
                "name": "olive",
                "num": "38",
                "price": "1.59",
                "type": "adipisicing sed est"
            }
        ],
        "returnUrl": "YOUR-RETURN-URL",
        "notifyUrl": "YOUR-WEBHOOK-ENDPOINT",
        "screenHeight": "780",
        "screenWidth": "2048",
        "timeZoneOffset": "-420",
        "transactionIp": "40.69.125.191",
        "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36"
    },
    "lpmsInfo": {
        "lpmsType": "GooglePay",
        "bankName": null,
        "iBan": null,
        "walletAccountId": null,
        "walletAccountName": null,
        "prepaidNumber": null
    },
    "productType": "ALL",
    "subProductType": "DIRECT",
    "txnType": "SALE"
}'