Querying Microsoft Graph

{HTTP method} https://graph.microsoft.com/{version}/{resource}?{query-parameters}

// Build a client application.
IPublicClientApplication publicClientApplication = PublicClientApplicationBuilder
    .Create("INSERT-CLIENT-APP-ID")
    .Build();

// Create an authentication provider using the client application and required Graph scopes.
DeviceCodeProvider authProvider = new DeviceCodeProvider(publicClientApplication, graphScopes);

// Initialize GraphServiceClient with the authentication provider.
GraphServiceClient graphClient = new GraphServiceClient(authProvider);

// GET https://graph.microsoft.com/v1.0/me with selected properties.
var userProfile = await graphClient.Me
    .Request()
    .Select(u => new {
        u.DisplayName,
        u.UserPrincipalName,
        u.JobTitle,
        u.MobilePhone
    })
    .GetAsync();

using Microsoft.Graph;
using Microsoft.Identity.Client;
using System;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading.Tasks;

class Program
{
    // Replace these with your actual application details.
    private static string clientId = "a967af23-c786-47a2-a2ed-5eb9da7b157a";
    private static string tenantId = "1e0fa212-37dc-455f-bb0f-d66867cac64b";
    private static string[] scopes = new[] { "User.Read" };

    static async Task Main(string[] args)
    {
        var publicClientApp = PublicClientApplicationBuilder
            .Create(clientId)
            .WithAuthority($"https://login.microsoftonline.com/{tenantId}")
            .WithRedirectUri("http://localhost")
            .Build();

        var authResult = await publicClientApp
            .AcquireTokenWithDeviceCode(scopes, deviceCodeResult =>
            {
                Console.WriteLine(deviceCodeResult.Message);
                return Task.FromResult(0);
            })
            .ExecuteAsync();

        using var httpClient = new HttpClient();
        httpClient.DefaultRequestHeaders.Authorization =
            new AuthenticationHeaderValue("Bearer", authResult.AccessToken);

        var graphClient = new GraphServiceClient(httpClient);
        var user = await graphClient.Me.GetAsync();

        Console.WriteLine($"Display Name: {user.DisplayName}");
        Console.WriteLine($"User Principal Name: {user.UserPrincipalName}");
        Console.WriteLine($"Job Title: {user.JobTitle ?? "N/A"}");
        Console.WriteLine($"Mobile Phone: {user.MobilePhone ?? "N/A"}");
    }
}