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Functional guides

Quick start

This page describes a quick 3-step integration with a working example.

Check out this link for a complete guide: Payment form integration.

I. Create the formToken

The formToken contains the basket data (amount, currency, order number, buyer contact details, etc.),
  1. Create a payment request to the Charge/CreatePayment Web Service.
  • Example for a simple payment:
    • amount : 9.90 €.
    • order: "myOrderId-999999",
    • buyer's email: "sample@example.com ".
  1. By default, all compatible payment methods (depending on the currency, the minimum or maximum amount, the technical constraints, etc.) associated with the shop will be offered. If you want to apply a filter to the payment methods, go to: select payment methods.

To send the request, authenticate with the REST API keys (for more info:Step 2: Authenticate )

/doc/en-EN/rest/V4.0/api/kb/authentication.html
https://github.com/lyra/rest-php-examples/blob/master/www/minimalEmbeddedForm.php#L9-L44
https://api.systempay.fr/api-payment/V4/Charge/CreatePayment
{
    "amount":   990,
    "currency": "EUR",
    "orderId":  "myOrderId-999999",
    "customer": {
        "email": "sample@example.com"
    }
}
{
    "amount":   1500,
    "currency": "PEN",
    "orderId":  "myOrderId-999999",
    "more": "parameters",
    "customer": {
        "email": "sample@example.com"
    }
}
{
    "amount":   20000,
    "currency": "ARS",
    "orderId":  "myOrderId-999999",
    "more": "parameters",
    "customer": {
        "email": "sample@example.com"
    }
}
{
    "amount":   100000,
    "currency": "COP",
    "orderId":  "myOrderId-999999",
    "more": "parameters",
    "customer": {
        "email": "sample@example.com"
    }
}
{
    "amount":   2500,
    "currency": "BRL",
    "orderId":  "myOrderId-999999",
    "more": "parameters",
    "customer": {
        "email": "sample@example.com"
    }
}

The response will be:

{
    "status": "SUCCESS",
    "_type": "V4/WebService/Response",
    "webService": "Charge/CreatePayment",
    "applicationProvider": "NPS",
    "version": "V4",
    "applicationVersion": "4.1.0",
    "answer": {
        "formToken": "DEMO-TOKEN-TO-BE-REPLACED",
        "_type": "V4/Charge/PaymentForm"
    }
}
  1. Retrieve the generated formToken to display the payment form

The generated formToken is: Processing...

II. Displaying the form

After creating the formToken , view the payment form.

Once the formToken is generated, display the payment form.

  1. In theHEAD,

  • chargez notre librairie JavaScript : src="https://static.systempay.fr/static/js/krypton-client/V4.0/stable/kr-payment-form.min.js"

  • intégrez obligatoirement la clé publique dans le paramètre kr-public-key (3 ème clé du tableau des clés API REST ).

  • intégrez d'autres paramètres d'initialisation, comme le paramètre kr-post-url-success en cas de paiement accepté (Etape 4 : Afficher le formulaire de paiement)

    • Exemple :kr-post-url-success="[SUCCESS PAYMENT URL]"

  • select a theme (more information on Themes ).

  1. In theBODY,

  • choose display mode :

    • with theclass= kr-embeddedfor theembedded mode(Embedded mode)
    • with theclass= kr-embeddedand attributekr-popinfor thepop-in mode (Pop-in mode)

  • set, the formToken , in the attribute kr-form-token

Embedded mode

Code sample for the TEST shop

<!DOCTYPE html>
<html>
<head>
  <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge" />

<!-- STEP :
1 : load the JS librairy
2 : required public key and the JS parameters as url sucess -->

<script type="text/javascript"
        src="https://static.systempay.fr/static/js/krypton-client/V4.0/stable/kr-payment-form.min.js"
        kr-public-key="73239078:testpublickey_Zr3fXIKKx0mLY9YNBQEan42ano2QsdrLuyb2W54QWmUJQ"
        kr-post-url-success="[SUCCESS PAYMENT URL]";>
 </script>

 <!-- 3 : theme néon should be loaded in the HEAD section   -->
<link rel="stylesheet" href="https://static.systempay.fr/static/js/krypton-client/V4.0/ext/neon-reset.min.css">
<script type="text/javascript" src="https://static.systempay.fr/static/js/krypton-client/V4.0/ext/neon.js">
    </script>
</head>

<body>

<!-- 4 : display the form payment -->
<div class="kr-embedded" kr-form-token="[GENERATED FORMTOKEN]">

</div>
</body>
</html>

Example of a fonctional payment form:

The form is functional, you can make a fictitious payment using test cards from the debug sidebar (in the left bottom corner of the window).

You also have the choice :

  • Highlight a payment method ;
  • Highlight multiple payment methods ;

III. Analyzing the payment result

Analyze the payment result from the IPN or from the browser return.

At the end of the payment, you can analyze the result of the payment from :

  • Instantiated payment notification: IPN: Analyzing IPN (notification URL).
  • .

A security mechanism checks the authenticity of the transmitted information, with the kr-hash.

In the object ,PAYMENT,, an example of a kr-answer, :

{
  "shopId": "73239078",
  "orderCycle": "CLOSED",
  "orderStatus": "PAID",
  "serverDate": "2022-01-21T09:28:17+00:00",
  "orderDetails": {
    "orderTotalAmount": 990,
    "orderEffectiveAmount": 990,
    "orderCurrency": "EUR",
    "mode": "TEST",
    "orderId": "myOrderId-475882",
    "metadata": null,
    "_type": "V4/OrderDetails"
  },
  "customer": {
    "billingDetails": {
      "address": null,
      "category": null,
      "cellPhoneNumber": null,
      "city": null,
      "country": null,
      "district": null,
      "firstName": null,
      "identityCode": null,
      "language": "FR",
      "lastName": null,
      "phoneNumber": null,
      "state": null,
      "streetNumber": null,
      "title": null,
      "zipCode": null,
      "legalName": null,
      "_type": "V4/Customer/BillingDetails"
    },
    "email": "sample@example.com",
    "reference": null,
    "shippingDetails": {
      "address": null,
      "address2": null,
      "category": null,
      "city": null,
      "country": null,
      "deliveryCompanyName": null,
      "district": null,
      "firstName": null,
      "identityCode": null,
      "lastName": null,
      "legalName": null,
      "phoneNumber": null,
      "shippingMethod": null,
      "shippingSpeed": null,
      "state": null,
      "streetNumber": null,
      "zipCode": null,
      "_type": "V4/Customer/ShippingDetails"
    },
    "extraDetails": {
      "browserAccept": null,
      "fingerPrintId": null,
      "ipAddress": "185.244.73.2",
      "browserUserAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36",
      "_type": "V4/Customer/ExtraDetails"
    },
    "shoppingCart": {
      "insuranceAmount": null,
      "shippingAmount": null,
      "taxAmount": null,
      "cartItemInfo": null,
      "_type": "V4/Customer/ShoppingCart"
    },
    "_type": "V4/Customer/Customer"
  },
  "transactions": [
    {
      "shopId": "73239078",
      "uuid": "1c8356b0e24442b2acc579cf1ae4d814",
      "amount": 990,
      "currency": "EUR",
      "paymentMethodType": "CARD",
      "paymentMethodToken": null,
      "status": "PAID",
      "detailedStatus": "AUTHORISED",
      "operationType": "DEBIT",
      "effectiveStrongAuthentication": "ENABLED",
      "creationDate": "2022-01-21T09:28:16+00:00",
      "errorCode": null,
      "errorMessage": null,
      "detailedErrorCode": null,
      "detailedErrorMessage": null,
      "metadata": null,
      "transactionDetails": {
        "liabilityShift": "YES",
        "effectiveAmount": 990,
        "effectiveCurrency": "EUR",
        "creationContext": "CHARGE",
        "cardDetails": {
          "paymentSource": "EC",
          "manualValidation": "NO",
          "expectedCaptureDate": "2022-01-27T09:38:10+00:00",
          "effectiveBrand": "VISA",
          "pan": "497011XXXXXX1003",
          "expiryMonth": 12,
          "expiryYear": 2025,
          "country": "FR",
          "issuerCode": 17807,
          "issuerName": "Banque Populaire Occitane",
          "effectiveProductCode": null,
          "legacyTransId": "929936",
          "legacyTransDate": "2022-01-21T09:28:16+00:00",
          "paymentMethodSource": "NEW",
          "authorizationResponse": {
            "amount": 990,
            "currency": "EUR",
            "authorizationDate": "2022-01-21T09:28:16+00:00",
            "authorizationNumber": "3fe205",
            "authorizationResult": "0",
            "authorizationMode": "FULL",
            "_type": "V4/PaymentMethod/Details/Cards/CardAuthorizationResponse"
          },
          "captureResponse": {
            "refundAmount": null,
            "refundCurrency": null,
            "captureDate": null,
            "captureFileNumber": null,
            "effectiveRefundAmount": null,
            "effectiveRefundCurrency": null,
            "_type": "V4/PaymentMethod/Details/Cards/CardCaptureResponse"
          },
          "threeDSResponse": {
            "authenticationResultData": {
              "transactionCondition": null,
              "enrolled": null,
              "status": null,
              "eci": null,
              "xid": null,
              "cavvAlgorithm": null,
              "cavv": null,
              "signValid": null,
              "brand": null,
              "_type": "V4/PaymentMethod/Details/Cards/CardAuthenticationResponse"
            },
            "_type": "V4/PaymentMethod/Details/Cards/ThreeDSResponse"
          },
          "authenticationResponse": {
            "id": "30eaa40d-dd76-4617-b527-4bed6240b81c",
            "operationSessionId": "ae6f2ad3ffea41bb8faf1aefabad87b9",
            "protocol": {
              "name": "THREEDS",
              "version": "2.1.0",
              "network": "VISA",
              "challengePreference": "NO_PREFERENCE",
              "simulation": true,
              "_type": "V4/Charge/Authenticate/Protocol"
            },
            "value": {
              "authenticationType": "CHALLENGE",
              "authenticationId": {
                "authenticationIdType": "dsTransId",
                "value": "bafdb21f-e3d6-4d1c-b4f6-d1668b7f7f21",
                "_type": "V4/Charge/Authenticate/AuthenticationId"
              },
              "authenticationValue": {
                "authenticationValueType": "CAVV",
                "value": "BqLgDBHYRaCBpip3Fn3+erKT9vg=",
                "_type": "V4/Charge/Authenticate/AuthenticationValue"
              },
              "status": "SUCCESS",
              "commerceIndicator": "05",
              "extension": {
                "authenticationType": "THREEDS_V2",
                "threeDSServerTransID": "30eaa40d-dd76-4617-b527-4bed6240b81c",
                "dsTransID": "bafdb21f-e3d6-4d1c-b4f6-d1668b7f7f21",
                "acsTransID": "bd6e58b4-6f37-4993-b428-9096766d83a6",
                "_type": "V4/Charge/Authenticate/AuthenticationResultExtensionThreedsV2"
              },
              "reason": {
                "_type": "V4/Charge/Authenticate/AuthenticationResultReason"
              },
              "_type": "V4/Charge/Authenticate/AuthenticationResult"
            },
            "_type": "V4/AuthenticationResponseData"
          },
          "installmentNumber": null,
          "installmentCode": null,
          "markAuthorizationResponse": {
            "amount": null,
            "currency": null,
            "authorizationDate": null,
            "authorizationNumber": null,
            "authorizationResult": null,
            "_type": "V4/PaymentMethod/Details/Cards/MarkAuthorizationResponse"
          },
          "cardHolderName": null,
          "identityDocumentNumber": null,
          "identityDocumentType": null,
          "_type": "V4/PaymentMethod/Details/CardDetails"
        },
        "fraudManagement": {
          "_type": "V4/PaymentMethod/Details/FraudManagement"
        },
        "subscriptionDetails": {
          "subscriptionId": null,
          "_type": "V4/PaymentMethod/Details/SubscriptionDetails"
        },
        "parentTransactionUuid": null,
        "mid": "9999999",
        "sequenceNumber": 1,
        "taxAmount": null,
        "preTaxAmount": null,
        "taxRate": null,
        "externalTransactionId": null,
        "nsu": null,
        "tid": "001",
        "acquirerNetwork": "CB",
        "taxRefundAmount": null,
        "userInfo": "JS Client",
        "paymentMethodTokenPreviouslyRegistered": null,
        "occurrenceType": "UNITAIRE",
        "_type": "V4/TransactionDetails"
      },
      "_type": "V4/PaymentTransaction"
    }
  ],
  "subMerchantDetails": null,
  "_type": "V4/Payment"
}

  • For more details, Step 5: Analyze the payment result.

  • You can also test the payment form with the interactive Playground.

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