Is there any way to get the permissions from a shared file - OneDrive?

How do I get the permission details of files shared with me on OneDrive using GraphAPI?

I tried the following code but the permission values are null.

IDriveSharedWithMeCollectionPage driveItems = await graphClient.Me.Drive.SharedWithMe().Request(requestOptions)
            .WithUserAccount(ClaimsPrincipal.Current.ToGraphUserAccount())
            .GetAsync();

Is there any way to get the permission details like read/write or readonly by using the GraphAPI from my shared Files?

The permissions are showing in the OneDrive at the Manage Access option but how do I get the details by using an API ?
Is it possible to get those data by using such an API?

I haven't tried it but i am guessing that permissions are specific to the drive item which you can get it after fetching it only.You can get shared item like below:

GraphServiceClient graphClient = new GraphServiceClient( authProvider );

var sharedWithMe = await graphClient.Me.Drive
	.SharedWithMe()
	.Request()
	.GetAsync();

and then :

GraphServiceClient graphClient = new GraphServiceClient( authProvider );

var permissions = await graphClient.Me.Drive.Items["{item-id}"].Permissions
	.Request()
	.GetAsync();

The permissions relationship of DriveItem cannot be expanded as part of a call to get DriveItem or a collection of DriveItems. You must access the permissions property directly.

Effective sharing permissions of a DriveItem can come from two sources:

• Sharing permissions applied directly on the DriveItem itself.

• Sharing permissions inherited from the DriveItem's ancestors.

Additional reference:

https://learn.microsoft.com/en-us/graph/api/driveitem-list-permissions?view=graph-rest-1.0&tabs=http

Hope it helps.