Invite group to SPO document library using MS Api Graph

Question

Hello.

I want to grant permissions to a group on a document library I have created in SharePoint using the MS Graph API.

I can read permissions using:

_graphServiceClient.Drives[driveid].Items[driveid].Permissions.GetAsync();

I can remove permissions using:

_graphServiceClient.Drives[driveid].Items[driveid].Permissions[perm.Id].DeleteAsync();

But when I try to add a group using:

var requestBody = new InvitePostRequestBody {
    Recipients = lstRecipients,
    RequireSignIn = true,
    SendInvitation = false,
    Roles = new List<string>() { "write"},
    RetainInheritedPermissions = true
};
_graphServiceClient.Drives[driveid].Items[driveid].Invite.PostAsInvitePostResponseAsync(requestBody);

I get the error "invalidRequest"

On the other hand, I can add permissions to an item within a document library using this method (It's just that in this case, I have an item ID different from the drive ID), but I cannot do so for the document library itself.

Answer 1

Hi @Sie7ex

The documentation indicates that the message property is not optional. could you give a try including this property to the request body

https://learn.microsoft.com/en-us/graph/api/driveitem-invite?view=graph-rest-1.0&tabs=csharp#request-body

{
  "requireSignIn": false,
  "sendInvitation": false,
  "roles": [ "read | write"],
  "recipients": [
    { "@odata.type": "microsoft.graph.driveRecipient" },
    { "@odata.type": "microsoft.graph.driveRecipient" }
  ],
  "message": "string"
}