We need to call a webservice to validate an input field on the checkout form in firecheckout. It is possible to add an extra checkout field in firecheckout.
The webservice is on another domain: [url removed, login to view] the webservice takes one parameter, see webservice details in attached document.
The response is returned in XML.
Same function and webservice is used on this shop: arnoldbusck dk
Needs to be completed withing 48 hours.
Card validation Web Service
The web service will receive 13 or 12 digits card number as input parameter and will return the response whether the user exist in the database or not. If the format of the card number is invalid or card number is less than the expected length (i.e. 12-13 digits) the database will not be accessed to find the user and XML response of invalid input will be returned. If card number is 12 digits web service itself will calculate the 13th digit and validate the card.
See document for details.