Customer is asking for a getting-started guide on how to utilize the Directory Manager RestAPI for DevOP purposes in addition to the Directory Manager Web UI and its RestAPI Swagger UI.
CA Directory 14.1
The following link is published on Broadcom community site that contains an article and download to a Broadcom employee written toolkit. It is not supported by Broadcom but at least provides a starting point for one to look into using Directory Manager RestAPI for DebOp purposes.
Symantec Directory Manager RestAPI Shell Script Framework
According to the employee, the following github clone actually contains a more recent update than the zip file download from the link above:
git clone https://github.com/tc09-brcm-social/cadirMgmt.git