Uploading items to a personal OneDrive shared folder

Question

OneDrive user A shares a folder with OneDrive user B, and B can access that folder by using the share id. For example using the graph explorer

GET https://graph.microsoft.com/v1.0/shares/{shareId}

yields

{
    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#shares/$entity",
    "id": "{shareId}",
    "name": "ASharedFolder",
    "owner": { ... }
}

Now, B wants to upload a new file to ASharedFolder.

Reading the OneDrive docs for upload I have tried

PUT https://graph.microsoft.com/v1.0/shares/{shareId}/driveItem/children:/SomeFile.txt:/content
Content-Type text/plain
some text goes here

as well as

PUT https://graph.microsoft.com/v1.0/shares/{shareId}/items/{sharedItemId}:/SomeFile.txt:/content
Content-Type text/plain
some text goes here

but both yield "BadRequest", "Unsupported segment type..."

Edit: I have now played out this scenario in the OneDrive Web UI using two different browsers for OneDrive users A and B, so I know that it is possible (without first adding the shared folder to B's own root), but I need some help figuring out the right request for the OneDrive REST API.

Does anyone know?

Answer 1

I checked the possibility of uploading files to a shared folder on OneDrive belonging to another user. I did not have any problems to achieve it using GraphExplorer.

Here is what I did:

1. I got a list of shared files and folders:

GET /me/drive/sharedWithMe

Returned (some of the data has been omitted):

{
    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#Collection(driveItem)",
    "value": [
        {
            "@odata.type": "#microsoft.graph.driveItem",
            "id": "<itemId>",
            "name": "Folder name",
            "parentReference": {
                "driveId": "<myUserId>",
                "driveType": "personal"
            },
            "remoteItem": {
                "id": "<remoteItemId>",
                "name": "Folder name",
                "createdBy": 
                    "user": {
                        "displayName": "Other user name",
                        "id": "<otherUserId>"
                    }
                },
                "folder": {
                    "childCount": 0
                },
                "parentReference": {
                    "driveId": "<otherUserId>",
                    "driveType": "personal"
                },
                "shared": {
                    "owner": {
                        "user": {
                            "displayName": "Other user name",
                            "id": "<otherUserId>"
                        }
                    }
                }
            }
        }
    ]
}

2. Then I preformed PUT request with the following data:

PUT /drives/{otherUserId}/items/{remoteItemId}:/test.txt:/content

Content-Type: text/plain
The contents of the file goes here.

Response: Success - Status Code 201

{
    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#drives('<otherUserId>')/items/$entity",
    "id": "<itemId>",
    "name": "test.txt",
    "size": 35,
    "createdBy": {
        "application": {
            "displayName": "Graph explorer"
        },
        "user": {
            "displayName": "My user name",
            "id": "<myUserId>"
        }
    },
    "parentReference": {
        "driveId": "<otherUserId>",
        "driveType": "personal",
        "id": "<parentReferenceId>",
        "name": "Folder name",
        "path": "/drives/<otherUserId>/items/<parentReferenceId>"
    },
    "file": {
        "mimeType": "text/plain"
    }
}

Then, on the subsequent GET /me/drive/sharedWithMe request, the value of the childCount of the folder has been increased to 1.

NOTE:

The \shares endpoint only allows GET requests to access a shared DriveItem or a collection of shared items. It does not allow to create new items.