Please take a look at the details section of the NetApp StorageGRID Add-on for Splunk - https://splunkbase.splunk.com/app/3895/#/details
The steps to configure the Rest API and the Audit logs are provided in the "Configuration of Add-on" section.
Note: You will need to install the StorageGRID Add-on for Splunk as well to use the StorageGRID app.
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