Known Issue: FME Flow REST API V3 Doesn't Return a resultDatasetDownloadUrl

Issue

The FME Flow REST API V3 documentation includes a resultDatasetDownloadURL in the response for the endpoints below, which are used to submit jobs to FME Flow programmatically:

POST /transformations/submit/{repository}/{workspace}
POST /transformations/transact/{repository}/{workspace}
POST /transformations/transactdata/{repository}/{workspace}

However, the resultDatasetDownloadURL is never included in the response. 

Cause

The resultDatasetDownloadURL is only included in the response when retrieving past jobs run against the Data Download service, for example, GET /transformations/jobs/completed. The response model for REST API V3 /transformation endpoints is shared, so the resultDatasetDownloadURL is included in the response documentation for other /transformations endpoints. This is a limitation of the REST API V3 documentation.

Workaround

A Data Download URL can only be obtained by running a job through the Data Download service.  Jobs can be run programmatically through the Data Download service using a workspace webhook, but not the REST API.

The tutorial Submitting a Job through an FME Flow Webhook URL provides an example using the Data Streaming service. The same approach can be used with the Data Download service.