How to perform a resumable Upload to a SharePoint Site (Not Root) Subfolder using MS Graph API
问题 Documentation: https://docs.microsoft.com/en-us/graph/api/driveitem-createuploadsession?view=graph-rest-1.0 I am able to get the Drive ID of the sub site using the sites/domain/drives api. Using this and the driveId/root/children I can confirm several folders on this drive. If I use the API POST /drives/{driveId}/items/{itemId}/createUploadSession replacing the driveId with the drive ID and the itemId with the folder ID I get the following error { "error": { "code": "nameAlreadyExists",