eSec Web Redirect Model

The Web Redirect Model is a Web-specific interface for the Payment Gateway that can be integrated into a merchant Web site through the addition of some HTML code to a page on the Web site, and the provision of a response page or script to receive and process transaction results.

The Redirect Model is used by the SSL Interface product.

The Web page containing the HTML code is sent to the client's browser from the merchant's Web site. When the client submits their purchase request, the browser transmits the request as a HTTP GET or POST request to the Payment Server and waits for a reply.

The transaction response is sent back to the browser as the result of the HTTP request. This response contains an instruction for the browser to redirect to the result page or script on the merchant's site, through the use of an HTTP "Location:" header, effectively relaying the result of the transaction back to the merchant's Web site.

This is the simplest interface model to implement from the merchant's point of view. It provides relatively fast performance and should interoperate with most 3rd party application environments, but has the lowest level of security of the supported interface methods since the browser is effectively an untrusted party in the transaction flow.