For the OneDrive consumer version it is currently not availlabe to add customer file data (other than tags and comments). For a new app we would like to store some additional metadata for the files that are uploaded.
We would recommend the same approach as https://developers.google.com/drive/v2/reference/properties/insert105 votes
We have a preview of custom metadata for OneDrive Personal available now. We’re definitely interested in feedback on the approach and how apps will use it! https://dev.onedrive.com/misc/custom-metadata.htm
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