This guide is going to provide instructions on how to integrate a website or application with our payment gateway.

How the Gateway works

Our platform offers a secure server-based transaction processing service which enables your business to authorize and process credit and debit card transactions online, in real-time. All the information necessary to process the transactions is sent over a secure, encrypted connection.

When a payment comes in, we connect to your acquiring bank to perform the authorization procedures and, once that's done, a receipt is returned to your customer. At the end of each day, your transactions are settled automatically and the acquiring bank deposits the funds into your merchant account.

Choosing your integration method

There are two integration methods available: Hosted Payment Page and REST API. You can use one or a combination of them as required, but you should consider the integration method carefully before starting any development planning.

The following information is presented to help you decide on the most appropriate integration method for your solution with the Worldnet Payments gateway. It is intended for review after you have decided upon your merchant account but before you start integrating with us. All costs will be considered including integration cost, ongoing merchant costs, PCI DSS compliance costs and Worldnet Payments's own charges. Different technologies, languages, consumer industries, server environments and other technical considerations will also be addressed.

The Hosted Pages

The Hosted Page (HP) has been created as a method for small-to-medium sized organisations to integrate their websites with our payment gateway. This is a hosted service with the highest levels of internet security, whose appearance can be customized to look just like your site. This is solely for use as a payment gateway for websites.

The benefits of the HP:

  • No cost for SSL certificate: PCI DSS requires that web pages accepting credit card information must have SSLv3 128-bit minimum certificates. Our host has a 128-bit to 256-bit certificate with full “green bar” functionality for extra customer confidence. The equivalent certificate from VeriSign is the “Secure Site Pro with EV” which currently costs $1,499/year (March 2010).
  • No PCI considerations: PCI also states that any site accepting card information must NEVER store the CVV, and if it does store the card number, it must be 256-bit AES encrypted. Most web servers log traffic to and from them which may include card numbers. These logs would have to be audited on a continual basis to ensure that card numbers are not being stored. Also, if you accept any sensitive card information on your site you jump up from a PCI SAQ A (Self Assessment Questionnaire) to an SAQ D. This means that you have to answer 30 pages of questions instead of 2!
  • Ease of integration: As opposed to other integration methods, the HPP integration is VERY simple. You just have to submit a simple web form to us and then display the response that our host sends back.
  • Everything under one roof: To enable features when using the Hosted Payment Page such as 3DSecure, eDCC, Mobile Payments etc., there is no extra development to do. We just flick a switch once we have all the data and your customers will then be offered the new feature(s).
  • Plug-in availability: We have Hosted Payment Page plug-ins readily available for almost all our available shopping carts.
  • Can be implemented in an iframe: If you do not want the customer to leave your site you can implement the HPP within an iframe. This is preferable for some merchants, but also means that the customer will not see the “green bar” that would be displayed otherwise.

The REST API

Our REST API is intended for much more elaborate integrations. It offers full access to all of our products and methods through a high speed, common platform gateway. This can be used as a payment gateway for a large website, but it can also be integrated into your existing corporate infrastructure. Companies using the REST API must maintain their own security and are subject to more rigorous PCI security assessment.

Benefits of our REST API:

  • Full range of features: Take full advantage of our products, whether you want to process a payment, register card information for secure storage on our system, setup a recurring payment, check the status of existing subscriptions or refund a customer.
  • Omnichannel payments: Accept in-store, online and Mo/To payments all with a single integration.
  • SDKs for major platforms: Get started quickly with our SDKs which are available for Android, iOS, Java and C#. The Worldnet SDK is a no-brainer for POS & mPOS solutions as it comes pre-certified for an extensive list of devices.

Costs

Small Business

For small businesses the Hosted Payment Page is nearly always the most cost effective route. There is an extra cost involved with using this service, but it is greatly outweighed by the savings made both directly because an SSL certificate does not have to be maintained and because the integration is very simple compared to other methods, and indirectly in that it removes the workload required to manage PCI compliance.

Large Enterprise

For large enterprise the costs involved can be quite difficult to calculate. You must take into account development costs, opportunity costs during the development period, the value of customer loyalty due to having an easy to use site, etc.

Testing Your Integrations

In order to integrate with the Payment Gateway, a few modifications are necessary to your solution.

For details on testing, please visit the Integration Docs and explore our guides.

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