Automate workflow using BRAPi.Utilities.ExecuteFileHarvestBatch

It's in the Accepted Code Samples section, which can be found by searching the site (the search box at the top of the page). https://community.onestreamsoftware.com/t5/Accepted-Code-Samples/Extender-automate-Import-Validate-Load/ta-p/6915

Edit: if you are not familiar with general automation via rules, the process is:

1. In Business Rules, create a rule of type Extender
2. place your code under the case ExecuteDataMgmtBusinessRuleStep and save
3. In Data Management, create a Step of type Execute Business Rule
4. Specify the Extender in the "Business Rule" property, and pass parameters if necessary.
5. Assign the Step to a Sequence, or execute it directly.