Follow these steps to perform a payment using Nuvei REST API integration:

1. Generate a sessionToken

Press here for details.

2. Send a /payment Request

Perform the payment by sending a /payment request with its mandatory parameters including:

• userTokenId
• amount
• currency
• paymentOption.alternativePaymentMethod class containing:
  • paymentMethod: “apmgw_MomoWallet“
• deviceDetails class containing: ipAddress
• billingAddress class containing: firstName, lastName,  country, email
• userDetails class containing: firstName, lastName, country, email

Example /payment Request

{
  "sessionToken":"<sessionToken from /getSessionToken>",
  "merchantId":"<your merchantId>",
  "merchantSiteId":"<your merchantSiteId>",
  "clientRequestId":"<unique request ID in merchant system>",
  "amount":"200",
  "currency":"VND",
  "userTokenId":"<unique customer identifier in merchant system>",
  "clientUniqueId":"<unique transaction ID in merchant system>",
  "paymentOption":{
    "alternativePaymentMethod":{
      "paymentMethod":"apmgw_MomoWallet"
    }
  },
  "deviceDetails":{
    "ipAddress":"<customer's IP address>"
  },
  "billingAddress":{
    "firstName": "John",
    "lastName": "Smith",
    "country":"VN",
    "email":"[email protected]"
  },
  "userDetails":{
    "firstName": "John",
    "lastName": "Smith",
    "country":"VN",
    "email":"[email protected]"
  },
  "timeStamp":"<YYYYMMDDHHmmss>",
  "checksum":"<calculated checksum>"
}

After the transaction is processed, Nuvei sends a Direct Merchant Notification (DMN) that includes the result of the transaction to urlDetails.notificationUrl, which Nuvei recommends including in the /payment request.

Follow these steps to perform a payment using Nuvei Web SDK integration.

1. Initiate a Session

Before you can submit payment using the client-side Nuvei Web SDK, you need to send the /openOrder API call.

2. Initialize the Web SDK

Instantiate the Web SDK with the sessionToken received from the server call to /openOrder.

3. Create an APM Payment

Send a createPayment() request with its mandatory parameters including:

• paymentOption.alternativePaymentMethod class containing:
  • paymentMethod: “apmgw_MomoWallet“
• deviceDetails class containing: ipAddress
• billingAddress class containing: firstName, lastName,  country, email
• userDetails class containing: firstName, lastName,  country, email

Example createPayment() Request

sfc.createPayment({

  sessionToken: "<sessiontoken>",
  paymentOption: {
    alternativePaymentMethod: {
      paymentMethod: "apmgw_MomoWallet",
      }     
  },
  deviceDetails:{
    ipAddress:"<customer's IP address>"
  },
  billingAddress: {
    firstName: "John",
    lastName: "Smith",
    country: "VN",
    email: "[email protected]"
  },
  userDetails: {
    firstName: "John",
    lastName: "Smith",
    country: "VN",
    email: "[email protected]"
  },
}, function (res) {
    console.log(res);
});

After the transaction is processed, Nuvei sends a Direct Merchant Notification (DMN) that includes the result of the transaction to urlDetails.notificationUrl, which Nuvei recommends including in the /openOrder request.

1. The Momo Wallet flow begins when the customer selects the Momo Wallet payment method from the payment method gallery.
2. The customer enters the amount and presses the Deposit/Process button.

Example Payment Page Request

https://ppp-test.safecharge.com/ppp/purchase.do?merchant_id=5970183043540730700&merchant_site_id=238459&user_token=auto&user_token_id=TestMomo&item_open_amount_1=false&item_min_amount_1=1&item_max_amount_1=410000&item_name_1=Cashier%20Test%20product&item_amount_1=1000&item_quantity_1=1&item_discount_1=0&numberofitems=1&total_tax=0&discount=0&total_amount=1000.00&currency=VND&version=4.0.0&encoding=UTF-8&first_name=test&last_name=test&address1=test&city=test&zip=123456&country=VN&phone1=123456&email=TestMomo%40gmail.com&time_stamp=&checksum=0b1c90265fa87d5c64a406277f68ec06&

After the transaction is processed, Nuvei sends a Direct Merchant Notification (DMN) that includes the result of the transaction to notify_url, which Nuvei recommends including in the request.