使用Microsoft Graph SDK获取具有特定电子邮件域的所有用户

using Microsoft.Graph;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        string clientId = "YOUR_CLIENT_ID";
        string clientSecret = "YOUR_CLIENT_SECRET";
        string tenantId = "YOUR_TENANT_ID";
        string domain = "YOUR_EMAIL_DOMAIN";

        var graphClient = GetAuthenticatedGraphClient(clientId, clientSecret, tenantId);

        var users = await GetUsersByDomain(graphClient, domain);

        foreach (var user in users)
        {
            Console.WriteLine($"User: {user.DisplayName}, Email: {user.Mail}");
        }
    }

    static GraphServiceClient GetAuthenticatedGraphClient(string clientId, string clientSecret, string tenantId)
    {
        var confidentialClientApplication = ConfidentialClientApplicationBuilder
            .Create(clientId)
            .WithClientSecret(clientSecret)
            .WithAuthority($"https://login.microsoftonline.com/{tenantId}")
            .Build();

        var authProvider = new ClientCredentialProvider(confidentialClientApplication);

        return new GraphServiceClient(authProvider);
    }

    static async Task<List<User>> GetUsersByDomain(GraphServiceClient graphClient, string domain)
    {
        var users = new List<User>();
        var nextPage = await graphClient.Users.Request().Filter($"mailNickname/endswith('{domain}')").GetAsync();

        while (nextPage != null)
        {
            users.AddRange(nextPage.CurrentPage);
            nextPage = await nextPage.NextPageRequest.GetAsync();
        }

        return users;
    }
}