ISF Format

An FTM Sample App ISF V3 library project has been produced for use in the sample application. The project is an extension to the FTM Core ISF V3 for Payments V3 library, and provides additional ISF elements to support the external service interactions as shown in the following figure.

Figure 1. Sample application ISF extensions - elements and types
SampAppIsfElementsTypes.jpg
ISFServiceRequest and ISFServiceResponse are generic service request and response types that allow the definition of repeating request and response parameters. Each parameter has a choice of the following values:
  • TextValue
  • BinaryValue
  • Transaction
Figure 2. Sample application ISF extensions - ISFServiceRequest
SampAppIsfServReq.jpg
Figure 3. Sample application ISF extensions - ISFServiceResponse
SampAppIsfServResp.jpg

The sample application populates these elements as follows: