Issue Retrieving File Content from SharePoint Using Microsoft Graph API - Seeking Resolution

Hello Microsoft Tech Community,

I am facing a problem while attempting to retrieve the content of a file saved on SharePoint using the Microsoft Graph API. I have tried multiple approaches, but unfortunately, I am encountering errors.

Approach 1:

var fileContentStream = await graph.Shares[drive.WebUrl].DriveItem.Content
                              .Request()
                             .GetAsync();

Error: "Resource not found."

Approach 2:

var fileContentStream = await graph.Drives[drive.ParentReference.Id]
                               .Root
                               .Request()
                               .GetAsync();

Error: "Malformed drive.ParentReference.Id."

Approach 3:

var fileContentStream = await graph.Groups[groupId]
                                 .Drives[drive.ParentReference.Id]
                                 .Items[drive.Id]
                                 .Content
                                 .Request()
                                 .GetAsync();

Error: "Malformed drive.Id."

It's worth noting that the file I am attempting to access is confirmed to exist on SharePoint and is accessible through the SharePoint interface. I have verified the correctness of the drive.Id and drive.ParentReference.Id with the file saved on SharePoint, and they match.

I would appreciate any insights, guidance, or solutions the community can provide to help resolve this issue.

Thank you in advance for your assistance.