using System;

using System.IO;

using Azure.Core;

using Microsoft.Graph;

using Microsoft.Graph.Models;

​

public class Program

{

    public static void Main()

    {

        var group = new Group{Id = "abc"};

        var client = new GraphServiceClient(DelegatedTokenCredential.Create((_, _) => new AccessToken()));

        var request = client.Groups["abc"].ToPatchRequestInformation(group);

​

        Console.WriteLine("First:  " + ExtractBody(request.Content));

        request = client.Groups["abc"].ToPatchRequestInformation(group);

        Console.WriteLine("Second: " + ExtractBody(request.Content));

        request = client.Groups["abc"].ToPatchRequestInformation(group);

        //group.Id = group.Id;

        group.DisplayName = "def";

        request = client.Groups["abc"].ToPatchRequestInformation(group);

        Console.WriteLine("Third:  " + ExtractBody(request.Content));

    }

​

    private static string ExtractBody(Stream stream)

    {

        using var ms = new MemoryStream();

        using var sr = new StreamReader(ms);

        stream.CopyTo(ms);

        ms.Position = 0;

        return sr.ReadToEnd();

    }

}