Do you know any example to upload file to a specific folder (identified by folderId)? with Graph v5.

Hello.
I’m just starting out with SharePoint and Microsoft 365.

I need to upload a file to a specific folder in a SharePoint library using Graph v5.61.
I’ve managed to upload it to the root of the library:

public async Task<string> UploadFile2Root(string listId, string fileName, byte[] fileBytes)
{
    string fileId = "";
    Drive? drive = await _graphClient.Sites[SITE_ID].Lists[listId].Drive.GetAsync();
    GraphSDK.Drives.Item.Root.RootRequestBuilder targetFolder = _graphClient.Drives[drive?.Id].Root;
    using (MemoryStream stream = new MemoryStream(fileBytes))
    {
        await targetFolder
                    .ItemWithPath(fileName)
                    .Content
                    .PutAsync(stream);
        DriveItem? uploadedItem = await targetFolder.ItemWithPath(fileName).GetAsync();
        fileId = uploadedItem?.Id ?? "";
    }
    return fileId;
}

The problem is when I try to use a specific folder (folderId has the correct value):

var targetFolder = _graphClient.Drives[drive?.Id].Items[folderId];

I always get the error: “Microsoft.Graph.Models.ODataErrors.ODataError: ‘The resource could not be found.'”

Could you tell me how to solve the problem or an example that does this task?

I have also tried: https://learn.microsoft.com/en-us/answers/questions/1517434/how-to-upload-a-file-to-a-sharepoint-driveitem-fol and other examples, but without success.
I’m also trying to retrieve something similar to an ItemRequestBuilder.

Thank you very much in advance.

Hello.I’m just starting out with SharePoint and Microsoft 365.I need to upload a file to a specific folder in a SharePoint library using Graph v5.61.I’ve managed to upload it to the root of the library:public async Task<string> UploadFile2Root(string listId, string fileName, byte[] fileBytes)
{
    string fileId = “”;
    Drive? drive = await _graphClient.Sites[SITE_ID].Lists[listId].Drive.GetAsync();
    GraphSDK.Drives.Item.Root.RootRequestBuilder targetFolder = _graphClient.Drives[drive?.Id].Root;
    using (MemoryStream stream = new MemoryStream(fileBytes))
    {
        await targetFolder
                    .ItemWithPath(fileName)
                    .Content
                    .PutAsync(stream);
        DriveItem? uploadedItem = await targetFolder.ItemWithPath(fileName).GetAsync();
        fileId = uploadedItem?.Id ?? “”;
    }
    return fileId;
}The problem is when I try to use a specific folder (folderId has the correct value):var targetFolder = _graphClient.Drives[drive?.Id].Items[folderId];I always get the error: “Microsoft.Graph.Models.ODataErrors.ODataError: ‘The resource could not be found.'”Could you tell me how to solve the problem or an example that does this task?I have also tried: https://learn.microsoft.com/en-us/answers/questions/1517434/how-to-upload-a-file-to-a-sharepoint-driveitem-fol and other examples, but without success.I’m also trying to retrieve something similar to an ItemRequestBuilder. Thank you very much in advance.  Read More

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