How to get SharePoint file content knowing the path using Microsoft.Graph SDK 5.60.0+

[pasqualefloccari]

Hi,
I would like to get the content of a file from a SharePoint site knowing the path and I am trying to use this Graph URL:

https://graph.microsoft.com/v1.0/sites/00000000-0000-0000-0000-000000000000/drive/root:/ExcelFile.xlsx/content

I would like to do the same using GraphServiceClient and I have tried different approaches, but Root drive seems inaccessible e.g.

var fileStream = await graphServiceClient.Sites[siteId].Drive.Root.ItemWithPath(filePath).Content.Request().GetAsync();

Could you help me?

Thanks