Webcenter sites - best way to export all of the assets of any asset type into csv or json files on t

Hello ,

what would be the best way to export all of existing assets of any asset type into csv or json file formats and save them as a zip file or persist to disk. If anyone has done this already please provide some sample code etc. I know there is REST API to grab JSON one asset at a time by directly going via URL or programmatically. But the examples provided in oracle sites documentation leaves the asset in AssetBean format but not in either csv or json format. I am looking for better approaches if anyone has any.