GRAPH API access shared file from external tenant

Question

I am trying to get shared files from shared folder of external tenant.

By following https://learn.microsoft.com/en-us/graph/api/drive-sharedwithme?view=graph-rest-1.0&tabs=http

Call GET /me/drive/sharedWithMe?allowexternal=true

I can get the top folder in shared-folder (with remoteItem)

{
  "value": [
    {
      "id": "1312ghi",
      ...,
      "remoteItem": {
        "id": "987def!654",
        "name": "Top FFol",
        "folder": {
          "childCount": 63
        },
        "size": 145362,
        "parentReference": {
          "driveId": "987def",
          "id": "987def!321"
        }
      }
    }
  ]
}

However, when I try to call for the detail GET https://graph.microsoft.com/v1.0/drives/987def/items/987def!654

https://graph.microsoft.com/v1.0/drives/987def/items/987def!654/children

It returns itemNotFound

{
    "error": {
        "code": "itemNotFound",
        "message": "Item not found",
        "innerError": {
            "date": "2023-05-16T11:34:56"
        }
    }
}

I dont know if any permission missing? I am able to see the shared-folder/sub files in OneDrive WebUI, and I can get the top folders from the shared-folder from the api, but why can not get the detail or list of children through api?

Answer 1

Hello Lam Do,
Thank you for reaching out.

Driver Details endpoint (/drives/{drive-id}/items/{item-id}/children or /drives/{drive-id}/items/{item-id}) will allow you to get details of internal shared link file. You can get details of shared file by an external with below endpoint only.
https://graph.microsoft.com/v1.0/me/drive/sharedWithMe?allowexternal=true

Hope this helps.
Thanks.