Create a REST V2 midstream transformation that interacts with the web service application to perform operations on hierarchical data.

When you use REST V2 Connector midstream, you create a business service, associate a REST V2 connection, and the required REST read or write operation for the business service. You can then use the business service to add operations to the Web Services transformation in the Mapping Designer.

A Web Services transformation connects to the web service application as a web service client to access, transform, or deliver data. Use the Web Services transformation in the Mapping Designer to construct a web service request and to parse the web service response.

The following image shows a REST V2 midstream transformation in a mapping:

On the Response Mapping tab of the Web Service transformation, the request generates a response structure for the specified REST operation from which you can select the elements that you require in the output. The output groups and keys generate automatically.

The response structure displays the fault output group by default. The fault group contains the request XML, error code, and error message. The fault group is displayed for the new business services. To map the fault group for the business services created in the previous version of connector, create new business services and import them again.