Problems download content in document library: 401 Unauthorized

Question

I try to download the file in document library by GET /drives/{drive-id}/items/{item-id}/contentthen I get the 401 UnauthorizedFollowing picture is the responsed web pages

It seems that the request will be redirected to server https://{sharepoint-site}/_layouts/15/download.aspx?UniqueId={id}&Translate=false&siteHost={host}&tempauth={token}&ApiVersion=2.0Is it the same issue as https://github.com/OneDrive/onedrive-api-docs/issues/593

Thank you.

Answer 1

Hi @howard tseng

The audience of this token is SharePoint REST API instead of graph API, it cannot be used to call graph API. You should get access token with graph API as audience:

• Grant the Files.ReadWrite.All application permission to your app under the Microsoft Graph API.
• Use the client credential flow to obtain an access token, you must change the scope to: https://graph.microsoft.com/.default.

2.

3.

Hope this helps.

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Answer 2

Hi @howard tseng

Here's a quick test:

1. Get downloadUrl:

https://graph.microsoft.com/v1.0/drives/{drive id}/items/{item id}?select=id,@microsoft.graph.downloadUrl

2. Run this URL in the browser address bar to download the file.

Hope this helps.

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