Files that should exist cannot be retrieved from the API

Mitsutoshi Shibuya 0 Reputation points

My application uses "GET /drives/{drive-id}/items/{item-id}/children" to search for items in the drive and make sure no files with the same name exist.

However, uploading a file using "POST /drives/{driveId}/items/{itemId}/createUploadSession" returns "nameAlreadyExists" and the upload fails.

Please let me know if there are any conditions for items that cannot be retrieved with GET /drives/{drive-id}/items/{item-id}/children.

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Microsoft Graph
A Microsoft programmability model that exposes REST APIs and client libraries to access data on Microsoft 365 services.
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SharePoint Development
SharePoint Development
SharePoint: A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.Development: The process of researching, productizing, and refining new or existing technologies.
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  1. RaytheonXie_MSFT 26,791 Reputation points Microsoft Vendor

    Hi @Mitsutoshi Shibuya

    The request options in your question can only be used to upload a new version of an already existing document by using the id of the document. A folder does not have a document, that can be replace with a newer version. Therefore, it is not possible to create an upload session for a folder. You need to specify the name of the file as a relative path after the folder id in order to create an upload session for a new file in the folder:{siteId}/drives/{driveId}/items/{folderId}:/{fileNameUploadFile}:/createUploadSession

    You can also use the folder name instead of the folder id:{siteId}/drives/{driveId}/root:/{folderName}/{fileNameUploadFile}:/createUploadSession

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