如何验证Dialogflow集成的Google凭据

Question

// Some APIs, like Storage, accept a credential in their Create() method.
// Explicitly use service account credentials by specifying the private key file.
GoogleCredential credential = GoogleCredential.FromFile(theServiceAccountJSONFilePath);
StorageClient storage = StorageClient.Create(credential);
// Make an authenticated API request.
PagedEnumerable<Buckets, Bucket> buckets = storage.ListBuckets(theProjectID);
foreach (Bucket bucket in buckets)
{
    Console.WriteLine(bucket.Name);
}
return null;

我从以下链接获得代码：为服务器到服务器生产应用程序设置身份验证

问题是，我的代码遇到了这个问题：

[e-mail]没有对项目160007643358的Storage.Buckets.List访问权限。

我是在我的‘谷歌云平台’上的免费选项。可能free选项不允许以这种方式进行身份验证。

我在这方面没有太多的经验，所以任何建议都是非常感谢的。

Answer 1

ICredential credential = LoadCredentialFromSomewhere();
var client = new AgentsClientBuilder
{
    TokenAccessMethod = credential.GetAccessTokenForRequestAsync 
}.Build();

var client = new AgentsClientBuilder
{
    CredentialsPath = "/path/to/serviceaccount.json"
}.Build();

string json = LoadJsonFromSomewhere();
var client = new AgentsClientBuilder
{
    JsonCredentials = json
}.Build();