如何检索 Google 服务帐户访问令牌 .NET

Question

我需要检索 Google 服务帐户的访问令牌，然后我将使用该令牌从 Google Analytics（分析）中获取结果。我已经在 PHP 中做过，但我在 .NET 中苦苦挣扎，我使用了来自 Google Docs 的示例，但我遇到了一些问题。这是代码：

        private static String ACTIVITY_ID = "1111111";

        public static void Test()
        {
            Console.WriteLine("Plus API - Service Account");
            Console.WriteLine("==========================");

            String serviceAccountEmail = "*@developer.gserviceaccount.com";
            var certificate = new X509Certificate2(System.Web.Hosting.HostingEnvironment.MapPath("~/*.p12"), "notasecret", X509KeyStorageFlags.Exportable | X509KeyStorageFlags.MachineKeySet | X509KeyStorageFlags.PersistKeySet);

            ServiceAccountCredential credential = new ServiceAccountCredential(
               new ServiceAccountCredential.Initializer(serviceAccountEmail)
               {
                   Scopes = new[] { PlusService.Scope.PlusMe }
               }.FromCertificate(certificate));

            // Create the service.

            var service = new PlusService(new BaseClientService.Initializer()
            {
                HttpClientInitializer = credential,
                ApplicationName = "Plus API Sample",
            });

            Activity activity = service.Activities.Get(ACTIVITY_ID).Execute();

            Console.WriteLine("Press any key to continue...");
            Console.ReadKey();

            Console.WriteLine("Press any key to continue...");
            Console.ReadKey();
        }
    }
}

在线崩溃：

Activity activity = service.Activities.Get(ACTIVITY_ID).Execute();

出现以下错误：

Google.Apis.Requests.RequestError
Not Found [404]
Errors [
    Message[Not Found] Location[ - ] Reason[notFound] Domain[global]
]

为了获得令牌，我遗漏了什么或做错了什么？另外，ACTIVITY_ID 是从 Analytics 中的视图中获取的 ID 还是其他？

Answer 1

可能和this问题差不多，需要设置User属性：

var xCred = new ServiceAccountCredential(new ServiceAccountCredential.Initializer(cr.client_email)
            {
                Scopes = new[] { "https://www.googleapis.com/somescope" },
                User = "theuser@gmail.com"
            }.FromPrivateKey(cr.private_key));