Proceed with the steps below to process Secure Fields payment transactions:

• Call the /v1/transactions/secureFields endpoint to retrieve a transactionId. The success result of this API call is a HTTP 201 status code with a transactionId in the response body.
• Initialize the SecureFields JavaScript library with the returned transactionId:

var secureFields = new SecureFields();
secureFields.init(
    transactionId, {
        cardNumber: "cardNumberPlaceholder",
        cvv: "cvvPlaceholder",
    });

• Handle the success event of the secureFields.submit() call. Example success event data:

{
    "event":"success",
    "data": {
        "transactionId":"{transactionId}",
        "cardInfo":{"brand":"MASTERCARD","type":"credit","usage":"consumer","country":"CH","issuer":"DATATRANS"},
        "redirect":"https://pay.sandbox.datatrans.com/upp/v1/3D2/{transactionId}"
    }
}

• If 3D authentication is required, the redirect property will indicate the URL that the browser needs to be redirected to.
• Use the Authorize an authenticated transaction endpoint to authorize the Secure Fields transaction. This is required to finalize the authorization process with Secure Fields.
• Use the transactionId to check the status and to settle, cancel or credit (refund) an transaction.