Follow the steps below to run the example from the Data Pipeline UI:

1. Start the openapi.server plain_greeter demo graph (com.sap.demo.openapi.server.plain_greeter), which exposes its service at path /openapi/service/samples/plain_greeter relative to the vflow instance URL.
2. Verify the host and port configured for this demo graph matches the actual vflow instance.
3. Start this demo graph, which will automatically start invoking a series of operations.
4. Open the UI from the wiretap operator so that the response messages from the invoked operations are displayed on the browser.