Need help demystifying the new feature introduced on Microsoft.Graph 4.0.0 - azure

Question

Question:
I am not sure if this falls under question or code review because the code works where I do not know if it is implemented correctly. But, do we need to acquire the access token from Microsoft.Graph using either silent or interactive modes? From what I can tell the answer is, No. (see Context below)
The new implementation seems to be drastically scaled down with the whole idea of silent and interactive token retrieval being removed. Is this correct?
using Azure.Identity;
using Microsoft.Graph;
using System;
namespace ConsoleApp1
{
class Program
{
static void Main(string[] args)
{
var scopes = new[] { "User.Read" };
// Multi-tenant apps can use "common",
// single-tenant apps must use the tenant ID from the Azure portal
var tenantId = "SomeGuid";
// Value from app registration
var clientId = "SomeGuid";
var options = new InteractiveBrowserCredentialOptions
{
TenantId = tenantId,
ClientId = clientId,
AuthorityHost = AzureAuthorityHosts.AzurePublicCloud,
// MUST be http://localhost or http://localhost:PORT
// See https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/wiki/System-Browser-on-.Net-Core
RedirectUri = new Uri("http://localhost:1234"),
};
// https://learn.microsoft.com/dotnet/api/azure.identity.interactivebrowsercredential
var interactiveCredential = new InteractiveBrowserCredential(options);
var graphClient = new GraphServiceClient(interactiveCredential, scopes);
// Interactive browser login occurs here.
var me = graphClient.Me.Request().GetAsync().Result;
// Printing the results
Console.WriteLine("-------- Data from call to MS Graph --------");
Console.Write(Environment.NewLine);
Console.WriteLine($"Id: {me.Id}");
Console.WriteLine($"Display Name: {me.DisplayName}");
Console.WriteLine($"Email: {me.Mail}");
//Console.ReadLine();
}
}
}
Context:
As part of our routine maintenance, I was tasked with upgrading our NuGet packages on a Winforms desktop application that is running in Azure and whose users are in Azure Active Directory Services (AADS). One of the packages, Microsoft.Graph, had a major version change. https://www.nuget.org/packages/Microsoft.Graph/4.0.0
The documentation on it indicated a new feature for handling the TokenCredentialClass. https://github.com/microsoftgraph/msgraph-sdk-dotnet/blob/4.0.0/docs/upgrade-to-v4.md#new-capabilities
From what I can tell, there is a separate and distinct break on how the token is retrieved. Previously, we followed the method provided here: https://learn.microsoft.com/en-us/azure/active-directory/develop/tutorial-v2-windows-desktop#add-the-code-to-initialize-msal
Old way:
using Microsoft.Graph;
using Microsoft.Graph.Auth;
using Microsoft.Identity.Client;
using System;
using System.Linq;
using System.Threading.Tasks;
namespace ConsoleApp1
{
class Program
{
static void Main(string[] args)
{
_PublicClientApp = PublicClientApplicationBuilder.Create(ClientId)
.WithRedirectUri("http://localhost:1234")
.WithAuthority(AzureCloudInstance.AzurePublic, TenantId)
.Build();
// We sign the user in here
bolIsAutorizeSSO = CallMicrosoftSSO().GetAwaiter().GetResult();
InteractiveAuthenticationProvider = new InteractiveAuthenticationProvider(PublicClientApp, Scopes);
GraphServiceClient = new Microsoft.Graph.GraphServiceClient(InteractiveAuthenticationProvider);
if (bolIsAutorizeSSO)
{
// We also signt the user in here.
var User = GraphServiceClient.Me.Request().GetAsync().Result;
// Printing the results
Console.WriteLine("-------- Data from call to MS Graph --------");
Console.Write(Environment.NewLine);
Console.WriteLine($"Id: {User.Id}");
Console.WriteLine($"Display Name: {User.DisplayName}");
Console.WriteLine($"Email: {User.Mail}");
}
else
{
// signout
Console.ReadLine();
}
}
public static async Task<bool> CallMicrosoftSSO()
{
AuthenticationResult authResult = null;
var app = PublicClientApp;
var accounts = await app.GetAccountsAsync();
try
{
authResult = await app.AcquireTokenInteractive(Scopes)
.WithAccount(accounts.FirstOrDefault())
.WithPrompt(Microsoft.Identity.Client.Prompt.ForceLogin)
.ExecuteAsync();
}
catch (MsalUiRequiredException _Exception)
{
// A MsalUiRequiredException happened on AcquireTokenSilent.
// This indicates you need to call AcquireTokenInteractive to acquire a token.
Console.WriteLine(_Exception.Message);
}
catch (MsalException msalex)
{
if (msalex.ErrorCode != "authentication_canceled")
{
Console.WriteLine(msalex.Message);
}
}
catch (Exception _Exception)
{
Console.WriteLine(_Exception.Message);
}
if (authResult != null)
{
return true;
}
return false;
}
private static string ClientId = "SomeGuid";
private static string TenantId = "SomeGuid";
private static string[] Scopes = new string[] { "User.Read" };
private static Microsoft.Graph.GraphServiceClient GraphServiceClient;
private static bool bolIsAutorizeSSO = false;
private static InteractiveAuthenticationProvider InteractiveAuthenticationProvider;
private static IPublicClientApplication _PublicClientApp;
public static IPublicClientApplication PublicClientApp { get { return _PublicClientApp; } }
}
}
I am struggling to make sense of it. Partly because the feature is brand new and there are very few code samples up on the internet that say do it this way. What I have found seems to point me back to what we already are using (more on that in a bit). So, the examples may not yet be fully updated.