如何通过授权的access_token创建GoogleCredential?

问题描述

我有一个像这样的OAuth2令牌...

I have an OAuth2 token like this...

{{
  "access_token": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
  "expires_in": "3600",
  "refresh_token": "xxxxxxxxxxxxxxxxxx",
  "token_type": "Bearer",
}}

并且我正在尝试创建一个DriveService对象...

and I'm trying to create a DriveService object...

Service = new DriveService(new BaseClientService.Initializer()
{
    HttpClientInitializer = credential,
    ApplicationName = "foo",
});

(像这样吗?)

但是我显然不能正确执行此操作，并且在查找文档时遇到了麻烦.

but I'm clearly not doing this properly and I'm having trouble finding documentation.

当我尝试创建GoogleCredential传递给DriveService

GoogleCredential credential = GoogleCredential.FromJson(credentialAsSerializedJson).CreateScoped(GoogleDriveScope);

我收到以下异常:

{System.InvalidOperationException:从JSON创建凭据时出错.无法识别的凭证类型.

我会完全以错误的方式解决这个问题吗?

Am I going about this the wrong way entirely?

(这是示例代码上下文 )

推荐答案

我设法弄清楚了这一点.

I have managed to figure this out.

解决方案是使用我的ClientID和ClientSecret创建Google.Apis.Auth.OAuth2.Flows.GoogleAuthorizationCodeFlow ...

The solution was to create a Google.Apis.Auth.OAuth2.Flows.GoogleAuthorizationCodeFlow with my ClientID and ClientSecret...

Google.Apis.Auth.OAuth2.Flows.GoogleAuthorizationCodeFlow googleAuthFlow = new GoogleAuthorizationCodeFlow(new GoogleAuthorizationCodeFlow.Initializer()
{
  ClientSecrets = new ClientSecrets()
  {
    ClientId = ClientID,
    ClientSecret = ClientSecret,
  }
});

以及Google.Apis.Auth.OAuth2.Responses.TokenResponse:

Google.Apis.Auth.OAuth2.Responses.TokenResponse responseToken = new TokenResponse()
{
  AccessToken = SavedAccount.Properties["access_token"],
  ExpiresInSeconds = Convert.ToInt64(SavedAccount.Properties["expires_in"]),
  RefreshToken = SavedAccount.Properties["refresh_token"],
  Scope = GoogleDriveScope,
  TokenType = SavedAccount.Properties["token_type"],
};

并使用每个参数创建一个UserCredential，该UserCredential依次用于初始化DriveService ...

and use each to create a UserCredential that is, in turn, used to initialize the DriveService...

var credential = new UserCredential(googleAuthFlow, "", responseToken);

Service = new DriveService(new BaseClientService.Initializer()
{
  HttpClientInitializer = credential,
  ApplicationName = "com.companyname.testxamauthgoogledrive",
});

我将 TestXamAuthGoogleDrive测试工具项目更新为反映这些变化.

I updated the TestXamAuthGoogleDrive test harness project to reflect these changes.

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