如何在.net内核中验证带密钥登录谷歌的凭据？

using Google.Apis.Auth.OAuth2;
using Google.Apis.Auth.OAuth2.Flows;
using Google.Apis.Auth.OAuth2.Responses;
using Google.Apis.Auth.OAuth2.Web;
using Google.Apis.Services;
using Google.Apis.Util.Store;
using System;
using System.Threading;
using System.Threading.Tasks;

public class GoogleAuthenticator
{
    private static readonly string ClientId = "YOUR_CLIENT_ID";
    private static readonly string ClientSecret = "YOUR_CLIENT_SECRET";
    private static readonly string RedirectUri = "YOUR_REDIRECT_URI";

    public async Task<UserCredential> AuthenticateAsync(string authorizationCode)
    {
        var flow = new GoogleAuthorizationCodeFlow(new GoogleAuthorizationCodeFlow.Initializer
        {
            ClientSecrets = new ClientSecrets
            {
                ClientId = ClientId,
                ClientSecret = ClientSecret
            },
            Scopes = new[] { "openid", "email", "profile" },
            DataStore = new FileDataStore("Google.Apis.Auth")
        });

        var tokenRequest = flow.ExchangeCodeForTokenAsync("", authorizationCode, RedirectUri, CancellationToken.None);
        var tokenResponse = await tokenRequest.ConfigureAwait(false);

        var credential = new UserCredential(flow, "", tokenResponse);

        return credential;
    }
}

public class Program
{
    public static async Task Main(string[] args)
    {
        var authenticator = new GoogleAuthenticator();
        var credential = await authenticator.AuthenticateAsync("YOUR_AUTHORIZATION_CODE");

        // 使用credential对象调用Google API进行验证和其他操作
        // 例如，使用Google.Apis.PeopleService.v1来获取用户的个人信息
        var service = new PeopleService(new BaseClientService.Initializer
        {
            HttpClientInitializer = credential
        });

        var person = await service.People.Get("people/me").ExecuteAsync();
        Console.WriteLine($"Hello, {person.Names[0].DisplayName}!");
    }
}