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Overview of the TRANSFER Service
The TRANSFER service in bankapp moves funds between two accounts. The service takes two account numbers, an input amount, and returns two balances-one for each account. In addition, the service returns an error message if there is an application or system error.
A TRANSFER is a WITHDRAWAL and a DEPOSIT executed as a single transaction. The transaction is created on the server, so the client does not need to create a transaction.
The client interface consists of an HTML page with a form used to enter the required data - account numbers and a dollar amount. This data is sent to the Web server as a "POST" request.
In the Web server, this request is processed using a VBScript Active Server Page. This program extracts the input data fields from the request, formats them for use with the Jolt ASP Connectivity For BEA Tuxedo class library, and dispatches the request to the TRANSFER service in the bankapp application. The TRANSFER service returns the results of the transaction. These results are returned to the VBScript program that merges them into a dynamically created HTML page. This page is returned to the client by way of the Web server infrastructure.
In the final part of this walkthrough, run the necessary HTML pages and server-side VBScript logic to execute a TRANSFER.
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