如何使用c#从全球通讯录中获取联系人

using System;
using System.Net.Http;
using Newtonsoft.Json;

public class Contact
{
    public string Name { get; set; }
    public string Email { get; set; }
    // 其他联系人信息字段...
}

public class Program
{
    public static async Task Main(string[] args)
    {
        string apiUrl = "https://example.com/api/contacts"; // 全球通讯录API的URL
        string apiKey = "YOUR_API_KEY"; // 全球通讯录API的密钥或访问令牌

        HttpClient client = new HttpClient();
        client.DefaultRequestHeaders.Add("Authorization", $"Bearer {apiKey}");

        HttpResponseMessage response = await client.GetAsync(apiUrl);
        if (response.IsSuccessStatusCode)
        {
            string jsonResponse = await response.Content.ReadAsStringAsync();
            List<Contact> contacts = JsonConvert.DeserializeObject<List<Contact>>(jsonResponse);

            foreach (Contact contact in contacts)
            {
                Console.WriteLine($"Name: {contact.Name}, Email: {contact.Email}");
            }
        }
        else
        {
            Console.WriteLine($"Failed to retrieve contacts. Status code: {response.StatusCode}");
        }
    }
}