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_expresscheckout“
• 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":"USD",
  "userTokenId":"<unique customer identifier in merchant system>",
  "clientUniqueId":"<unique transaction ID in merchant system>",
  "paymentOption":{
    "alternativePaymentMethod":{
      "paymentMethod":"apmgw_expresscheckout"
    }
  },
  "deviceDetails":{
    "ipAddress":"<customer's IP address>"
  },
  "billingAddress":{
    "firstName": "John",
    "lastName": "Smith",
    "country":"US",
    "email":"[email protected]"
  },
  "userDetails":{
    "firstName": "John",
    "lastName": "Smith",
    "country":"US",
    "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.

Payout (Withdrawal) Flow

After the transaction is processed, Nuvei sends a DMN that includes the result of the transaction to urlDetails.notificationUrl, which Nuvei recommends including in the /payout request.

Example Withdrawal Request DMN with wdRequestStatus=APPROVED

wdOrderId=5377261&wdRequestId=6744051&gwTrxId=2610000000000014194&notificationType=WITHDRAW_REQUEST_NOTIFICATION&merchantSiteId=209631&merchantGwId=4972436454212160565&merchantLocale=en_US&wdRequestState=Closed&wdRequestStatus=Approved&wdOrderStatus=Settled&settlementType=WITHDRAWAL&gwErrCode=0&gwExtendedErrorCode=0&apmTrxId=2610000000021714&apmReferenceId=84CFC2767E5D77967EAB195323F60ECC&apmErrorCode=0&firstName=John&lastName=Doe&userTokenId=ttvfcefcr3frc3rc3ffr33344&zip=M6T+1J1&city=Ontario&country=DE&phone1=%2B14161238888&email=ivanp%40abv.bg&address=Test+Address&amount=45.00&approvedAmount=45.00&currency=EUR&userId=UID&userPMId=2153172031&paymentMethod=apmgw_expresscheckout&version=1.0&pmDisplayName=sb-ksvvh29494455%40business.example.com&customField1=meccabingo.com&customField3=333&client_ip=97.247.234.249&wdOrderAmount=45.00&wdOrderCurrency=EUR&responseTimeStamp=2024-03-22.07%3A46%3A28&ExternalaccountID=AFV2UDFKFF35J&externalAccountDescription=account_id%3AAFV2UDFKFF35J%7Cemail%3Asb-ksvvh29494455%40business.example.com&feeAmount=0.0&transactionAmount=45.0&merchantUniqueId=merchant_unique_id&externalEmail=sb-ksvvh29494455%40business.example.com&upoRegistrationDate=20240321&acquirerBank=PPCP-PI&checksum=3b0a74f68334d1dd854afc5413aae224

Example Withdrawal Order DMN with wdRequestStatus=APPROVED

wdOrderId=5377261&wdRequestId=6744051&gwTrxId=2610000000000014194&notificationType=WITHDRAW_ORDER_NOTIFICATION&merchantSiteId=209631&merchantGwId=4972436454212160565&merchantLocale=en_US&wdRequestState=Closed&wdRequestStatus=Approved&wdOrderStatus=Settled&settlementType=WITHDRAWAL&gwErrCode=0&gwExtendedErrorCode=0&apmTrxId=2610000000021714&apmReferenceId=84CFC2767E5D77967EAB195323F60ECC&apmErrorCode=0&firstName=John&lastName=Doe&userTokenId=ttvfcefcr3frc3rc3ffr33344&zip=M6T+1J1&city=Ontario&country=DE&phone1=%2B14161238888&email=ivanp%40abv.bg&address=Test+Address&amount=45.00&approvedAmount=45.00&currency=EUR&userId=UID&userPMId=2153172031&paymentMethod=apmgw_expresscheckout&version=1.0&pmDisplayName=sb-ksvvh29494455%40business.example.com&customField1=meccabingo.com&customField3=333&client_ip=97.247.234.249&wdOrderAmount=45.00&wdOrderCurrency=EUR&responseTimeStamp=2024-03-22.07%3A46%3A28&ExternalaccountID=AFV2UDFKFF35J&externalAccountDescription=account_id%3AAFV2UDFKFF35J%7Cemail%3Asb-ksvvh29494455%40business.example.com&feeAmount=0.0&transactionAmount=45.0&merchantUniqueId=merchant_unique_id&externalEmail=sb-ksvvh29494455%40business.example.com&upoRegistrationDate=20240321&acquirerBank=PPCP-PI&checksum=c9b6c8de6e05a51bd9e38d582d5368e0

Example Payment DMN with Status=APPROVED

...'ppp_status=OK&Status=APPROVED&ExErrCode=0&ErrCode=0&errApmCode=0&errApmDescription=&errScCode=0&errScDescription=&Reason=&ReasonCode=0&PPP_TransactionID=44702661&userid=Lorem&merchant_unique_id=merchuniqueid&customData=56_Sm96a3ZZWG56RERLJKHkljnJKHjbxiuyTWd4WDVncS9YQURxYWZuS1VCWT0%3D&productId=1&first_name=John&last_name=Doe&email=test%40mymail.com&currency=USD&pmDisplayName=hristo%40personal.example.com&customField1=enracha.es&customField2=&customField3=&customField4=&customField5=&customField6=&customField7=&customField8=&customField9=&customField10=&customField11=&customField12=&customField13=&customField14=&customField15=&invoice_id=&address1=Sancho+el+fuerte+15&address2=15&country=United+States&state=&city=City&zip=123456&phone1=1234567890&phone2=&phone3=&client_ip=127.0.0.1&nameOnCard=&cardNumber=&bin=&noCVV=&acquirerId=&acquirerBank=PPCP-PI&expMonth=&expYear=&Token=&tokenId=&AuthCode=&AvsCode=&Cvv2Reply=&shippingCountry=&shippingState=&shippingCity=&shippingAddress=&shippingZip=&shippingFirstName=&shippingLastName=&shippingPhone=&shippingCell=&shippingMail=&total_discount=0.00&total_handling=0.00&total_shipping=0.00&total_tax=0.00&buyButtonProductBundleId=&merchant_site_id=186111&merchant_status=&action=&requestVersion=&message=APPROVED&merchantLocale=en_US&unknownParameters=&payment_method=apmgw_expresscheckout&ID=&merchant_id=5416795427517477813&responseTimeStamp=2025-01-29.12%3A50%3A12&buyButtonProductId=&webMasterId=&appliedPromotions=&uniqueCC=&transactionType=Sale&externalEmail=hristo%40personal.example.com&cardCompany=&eci=&user_token_id=13395012wwe123456789012345&user_token=auto&userPaymentOptionId=2153639511&TransactionID=2610000000000123985&ExternalaccountID=F567H2HXTLVP4&externalAccountDescription=account_id%3AF567H2HXTLVP4%7Cemail%3Ahristo%40personal.example.com&externalTransactionId=6SU29313ED6385822&APMReferenceID=DEBD1547D2D04FF9536CDF0C94A887A1&orderTransactionId=25788891&totalAmount=10.00&dynamicDescriptor=hristo+descriptor&item_name_1=1&item_number_1=&item_amount_1=10.00&item_quantity_1=1&item_discount_1=0.00&item_handling_1=0.00&item_shipping_1=0.00&feeAmount=&amountWithoutFee=&houseNumber=&customCurrency=&upoRegistrationDate=20250129&type=DEPOSIT&clientRequestId=&relatedTransactionId=&apmPayerInfo=%7B%22address%22%3A%7B%22address_line_1%22%3A%22Sancho+el+fuerte+15%22%2C%22admin_area_2%22%3A%22Madrid%22%2C%22postal_code%22%3A%22123456%22%2C%22country_code%22%3A%22US%22%7D%2C%22name%22%3A%7B%22surname%22%3A%22Doe%22%2C%22given_name%22%3A%22John%22%7D%2C%22email_address%22%3A%22hristo%40personal.example.com%22%2C%22account_id%22%3A%22F567H2HXTLVP4%22%2C%22account_status%22%3A%22VERIFIED%22%2C%22phone_number%22%3A%7B%22national_number%22%3A%224089881537%22%7D%7D&sessionId=1ffc52156f1eb7a7c4d18e21a435&responsechecksum=f4ffcc0ba5b169dde3a4f586f08a56b9d4932ac1264e7cdbd79483477aa3f4d3&advanceResponseChecksum=9750a9c4551a2b45f67cfeb03ec241efe0cdfb1326d8d0c7ff7a63a8167d2cf7',

Example Payment DMN with Status=PENDING

...'ppp_status=PENDING&Status=PENDING&ExErrCode=0&ErrCode=0&errApmCode=0&errApmDescription=&errScCode=0&errScDescription=&Reason=&ReasonCode=0&PPP_TransactionID=44702661&userid=Lorem&merchant_unique_id=merchuniqueid&customData=56_Sm96a3ZZWG56RERLJKHkljnJKHjbxiuyTWd4WDVncS9YQURxYWZuS1VCWT0%3D&productId=1&first_name=John&last_name=Doe&email=test%40mymail.com&currency=USD&pmDisplayName=hristo%40personal.example.com&customField1=enracha.es&customField2=&customField3=&customField4=&customField5=&customField6=&customField7=&customField8=&customField9=&customField10=&customField11=&customField12=&customField13=&customField14=&customField15=&invoice_id=&address1=Sancho+el+fuerte+15&address2=15&country=United+States&state=&city=City&zip=123456&phone1=1234567890&phone2=&phone3=&client_ip=127.0.0.1&nameOnCard=&cardNumber=&bin=&noCVV=&acquirerId=&acquirerBank=PPCP-PI&expMonth=&expYear=&Token=&tokenId=&AuthCode=&AvsCode=&Cvv2Reply=&shippingCountry=&shippingState=&shippingCity=&shippingAddress=&shippingZip=&shippingFirstName=&shippingLastName=&shippingPhone=&shippingCell=&shippingMail=&total_discount=0.00&total_handling=0.00&total_shipping=0.00&total_tax=0.00&buyButtonProductBundleId=&merchant_site_id=186111&merchant_status=&action=&requestVersion=&message=PENDING&merchantLocale=en_US&unknownParameters=&payment_method=apmgw_expresscheckout&ID=&merchant_id=5416795427517477813&responseTimeStamp=2025-01-29.12%3A50%3A11&buyButtonProductId=&webMasterId=&appliedPromotions=&uniqueCC=&transactionType=Sale&externalEmail=hristo%40personal.example.com&cardCompany=&eci=&user_token_id=13395012wwe123456789012345&user_token=auto&userPaymentOptionId=2153639511&TransactionID=2610000000000123985&ExternalaccountID=F567H2HXTLVP4&externalAccountDescription=account_id%3AF567H2HXTLVP4%7Cemail%3Ahristo%40personal.example.com&externalTransactionId=6SU29313ED6385822&APMReferenceID=DEBD1547D2D04FF9536CDF0C94A887A1&orderTransactionId=25788891&totalAmount=10.00&dynamicDescriptor=hristo+descriptor&item_name_1=1&item_number_1=&item_amount_1=10.00&item_quantity_1=1&item_discount_1=0.00&item_handling_1=0.00&item_shipping_1=0.00&feeAmount=&amountWithoutFee=&houseNumber=&customCurrency=&upoRegistrationDate=20250129&type=DEPOSIT&clientRequestId=&relatedTransactionId=&apmPayerInfo=%7B%22address%22%3A%7B%22address_line_1%22%3A%22Sancho+el+fuerte+15%22%2C%22admin_area_2%22%3A%22Madrid%22%2C%22postal_code%22%3A%22123456%22%2C%22country_code%22%3A%22US%22%7D%2C%22name%22%3A%7B%22surname%22%3A%22Doe%22%2C%22given_name%22%3A%22John%22%7D%2C%22email_address%22%3A%22hristo%40personal.example.com%22%2C%22account_id%22%3A%22F567H2HXTLVP4%22%2C%22account_status%22%3A%22VERIFIED%22%2C%22phone_number%22%3A%7B%22national_number%22%3A%224089881537%22%7D%7D&sessionId=1ffc52156f1eb7a7c4d18e21a435&responsechecksum=fd5e7e81209b80dfd4743bdfe5c957fdf0afd80fce5a00c032d2f3851526f8d9&advanceResponseChecksum=1d451b0cd5663817a9ca7796a99f992c815db8977fab61798fb8be69517d05e3',

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_expresscheckout“
• 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_expresscheckout"
  }},                     
  deviceDetails:{
    ipAddress:"<customer's IP address>"
  },
  billingAddress: {
    firstName: "John",
    lastName: "Smith",
    country: "US",
    email:"[email protected]"
  },   
  userDetails: {
    firstName: "John",
    lastName: "Smith",
    country: "US",
    email:"[email protected]"
  },      
}, function(res) {
      console.log(res);
});

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

Withdrawal Flow

For information about the Withdrawal flow for WebSDK, see Withdrawal.

Example Payment Page Request

https://ppp-test.safecharge.com/ppp/purchase.do?merchant_id=5833787323214383259&merchant_site_id=218548&user_token=auto&user_token_id=UserID_8343021444&userid=UserID_8343021444&item_open_amount_1=false&item_min_amount_1=1&item_max_amount_1=100&item_name_1=Cashier%20Test%20product&item_amount_1=10&item_quantity_1=1&item_discount_1=0&numberofitems=1&total_tax=0&discount=0&total_amount=10.00&currency=GBP&version=4.0.0&encoding=UTF-8&first_name=test&last_name=test&address1=test&city=test&zip=123456&country=GB&phone1=123456&email=0939122464%40gmail.com&payment_method=apmgw_expresscheckout&success_url=https%3A%2F%2Fhome.stefanovweb.eu%2Fresponse.php&pending_url=https%3A%2F%2Fhome.stefanovweb.eu%2Fresponse.php&error_url=https%3A%2F%2Fhome.stefanovweb.eu%2Fresponse.php&notify_url=https%3A%2F%2Fhome.stefanovweb.eu%2Fdmn.php%3Fdmnorigin%3DCheckSumCalculator&payment_method_mode=filter&time_stamp=2021-12-21.15%3A58%3A29&checksum=e6115fd7c0107b54e6ba4b245beb855e2498a34e9832900960d2edc785d263b7&

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

To perform a payment using Nuvei Simply Connect integration:

1. Initiate a Session

Before submitting a Simply Connect payment request, you need to submit a server-side /openOrder API request.

2. Create an HTML Placeholder

Import the checkout.js library for building payment flows and create an HTML placeholder on your payment page for the Simply Connect UI element.

3. Submit a checkout() Request

Send a checkout() request with its mandatory input parameters, along with any other relevant parameters and customizations. For more information, see Quick Start to Simply Connect.

To offer customers the option to skip the PayPal payment confirmation page for future payments, include in the checkout() request:

• savePm: “always“, “true“, or “force” – Fast flow requires a saved payment method. Other possible savePm values do not support fast flow.
• apmConfig class containing:
  • apmgw_expresscheckout class containing:
    • fastFlow: true
• subMethod: [“ReferenceTransaction”,”AliasRegistration”,”Skrill1Tap”] – Array of submethods that support fast flow.
  
  PayPal subMethod: [“QuickRegistration”] does not support fast flow.

checkout ({...
    savePm: 'true',
    apmConfig: {
        apmgw_expresscheckout: {
            fastFlow: true
        },
    },
    subMethod: ["ReferenceTransaction","AliasRegistration","Skrill1Tap"],...
});