如何将 .NET Core 连接到 Google 个联系人

Question

我想根据数据库编辑 google 个联系人。我已经完成了所有的工作，唯一剩下的就是实现 API，但我就是不知道如何去做。我已经在 Google API 仪表板 中创建了一个应用程序并创建了一个 OAuth2.0 客户端 （我什至不确定这是否是我需要的） .

我已经下载了 Google 个程序集并将它们包含在我的 C# 控制台应用程序中。

如何从我的控制台应用程序连接到 google 个联系人？
如何在联系人列表中添加和删除条目？

Answer 1

可以在“已安装的应用程序”部分下HERE找到答案。以下是摘录：

Sample code using the Books API:

using System;
using System.IO;
using System.Threading;
using System.Threading.Tasks;

using Google.Apis.Auth.OAuth2;
using Google.Apis.Books.v1;
using Google.Apis.Books.v1.Data;
using Google.Apis.Services;
using Google.Apis.Util.Store;

namespace Books.ListMyLibrary
{
    /// <summary>
    /// Sample which demonstrates how to use the Books API.
    /// https://developers.google.com/books/docs/v1/getting_started
    /// <summary>
    internal class Program
    {
        [STAThread]
        static void Main(string[] args)
        {
            Console.WriteLine("Books API Sample: List MyLibrary");
            Console.WriteLine("================================");
            try
            {
                new Program().Run().Wait();
            }
            catch (AggregateException ex)
            {
                foreach (var e in ex.InnerExceptions)
                {
                    Console.WriteLine("ERROR: " + e.Message);
                }
            }
            Console.WriteLine("Press any key to continue...");
            Console.ReadKey();
        }

        private async Task Run()
        {
            UserCredential credential;
            using (var stream = new FileStream("client_secrets.json", FileMode.Open, FileAccess.Read))
            {
                credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
                    GoogleClientSecrets.Load(stream).Secrets,
                    new[] { BooksService.Scope.Books },
                    "user", CancellationToken.None, new FileDataStore("Books.ListMyLibrary"));
            }

            // Create the service.
            var service = new BooksService(new BaseClientService.Initializer()
                {
                    HttpClientInitializer = credential,
                    ApplicationName = "Books API Sample",
                });

            var bookshelves = await service.Mylibrary.Bookshelves.List().ExecuteAsync();
            ...
        }
    }
}

In this sample code a new UserCredential instance is created by calling the GoogleWebAuthorizationBroker.AuthorizeAsync method. This static method gets the following:
- The client secret (or a stream to the client secret).
- The required scopes.
- The user identifier.
- The cancellation token for cancelling an operation.
- An optional data store. If the data store is not specified, the default is a FileDataStore with a default Google.Apis.Auth folder. The folder is created in Environment.SpecialFolder.ApplicationData.
The UserCredential that is returned by this method is set as a HttpClientInitializer on the BooksService (using the initializer). As explained above, UserCredential implements an HTTP client initializer.
Notice that in the above sample code, the client secret information is loaded from a file, but you can also do the following:

credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
    new ClientSecrets
    {
        ClientId = "PUT_CLIENT_ID_HERE",
        ClientSecret = "PUT_CLIENT_SECRETS_HERE"
    },
    new[] { BooksService.Scope.Books },
    "user",
    CancellationToken.None,
    new FileDataStore("Books.ListMyLibrary")
);

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