谁能帮助我得到谷歌文档api刷新令牌第一次在asp . net MVC。我有客户端Id和客户端保密，从这我应该如何获得刷新令牌和进一步从刷新令牌我应该如何获得访问令牌访问谷歌api驱动器。
他们还没有对Drive API V3的样例代码做很多工作。我不会使用所有这些作用域，选择需要的作用域，这些代码是预先生成的。
NuGet包
PM> Install-Package google . api . drive。v3
/// <summary>
/// This method requests Authentication from a user using Oauth2.
/// Credentials are stored in System.Environment.SpecialFolder.Personal
/// Documentation https://developers.google.com/accounts/docs/OAuth2
/// </summary>
/// <param name="clientSecretJson">Path to the client secret json file from Google Developers console.</param>
/// <param name="userName">Identifying string for the user who is being authentcated.</param>
/// <returns>DriveService used to make requests against the Drive API</returns>
public static DriveService AuthenticateOauth(string clientSecretJson, string userName)
{
try
{
if (string.IsNullOrEmpty(userName))
throw new Exception("userName is required.");
if (!File.Exists(clientSecretJson))
throw new Exception("clientSecretJson file does not exist.");
// These are the scopes of permissions you need. It is best to request only what you need and not all of them
string[] scopes = new string[] { DriveService.Scope.Drive, // View and manage the files in your Google Drive
DriveService.Scope.DriveAppdata, // View and manage its own configuration data in your Google Drive
DriveService.Scope.DriveFile, // View and manage Google Drive files and folders that you have opened or created with this app
DriveService.Scope.DriveMetadata, // View and manage metadata of files in your Google Drive
DriveService.Scope.DriveMetadataReadonly, // View metadata for files in your Google Drive
DriveService.Scope.DrivePhotosReadonly, // View the photos, videos and albums in your Google Photos
DriveService.Scope.DriveReadonly, // View the files in your Google Drive
DriveService.Scope.DriveScripts}; // Modify your Google Apps Script scripts' behavior
UserCredential credential;
using (var stream = new FileStream(clientSecretJson, FileMode.Open, FileAccess.Read))
{
string credPath = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);
credPath = Path.Combine(credPath, ".credentials/apiName");
// Requesting Authentication or loading previously stored authentication for userName
credential = GoogleWebAuthorizationBroker.AuthorizeAsync(GoogleClientSecrets.Load(stream).Secrets,
scopes,
userName,
CancellationToken.None,
new FileDataStore(credPath, true)).Result;
}
// Create Drive API service.
return new DriveService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = "Drive Authentication Sample",
});
}
catch (Exception ex)
{
Console.WriteLine("Create Oauth2 DriveService failed" + ex.Message);
throw new Exception("CreateOauth2DriveFailed", ex);
}
}
服务帐户Json密钥文件不是p12
/// <summary>
/// Authenticating to Google using a Service account
/// Documentation: https://developers.google.com/accounts/docs/OAuth2#serviceaccount
///
/// Note: Not all APIs support service accounts I cant garentee this will work. If you find an api that doesnt support service accoutns contact me
/// me at www.daimto.com and I will remove it from auto genration of this APIs sample project.
/// </summary>
/// <param name="serviceAccountEmail">From Google Developer console https://console.developers.google.com</param>
/// <param name="serviceAccountCredentialFilePath">Location of the Json Service account key file downloaded from Google Developer console https://console.developers.google.com</param>
/// <returns>DriveService used to make requests against the Drive API</returns>
public static DriveService AuthenticateServiceAccount(string serviceAccountCredentialFilePath)
{
try
{
if (string.IsNullOrEmpty(serviceAccountCredentialFilePath))
throw new Exception("Path to the .JSon service account credentials file is required.");
if (!File.Exists(serviceAccountCredentialFilePath))
throw new Exception("The service account credentials .JSon file does not exist at:" + serviceAccountCredentialFilePath);
// These are the scopes of permissions you need. It is best to request only what you need and not all of them
string[] scopes = new string[] { DriveService.Scope.Drive, // View and manage the files in your Google Drive
DriveService.Scope.DriveAppdata, // View and manage its own configuration data in your Google Drive
DriveService.Scope.DriveFile, // View and manage Google Drive files and folders that you have opened or created with this app
DriveService.Scope.DriveMetadata, // View and manage metadata of files in your Google Drive
DriveService.Scope.DriveMetadataReadonly, // View metadata for files in your Google Drive
DriveService.Scope.DrivePhotosReadonly, // View the photos, videos and albums in your Google Photos
DriveService.Scope.DriveReadonly, // View the files in your Google Drive
DriveService.Scope.DriveScripts}; // Modify your Google Apps Script scripts' behavior
Stream stream = new FileStream(serviceAccountCredentialFilePath, FileMode.Open, FileAccess.Read, FileShare.Read);
var credential = GoogleCredential.FromStream(stream).CreateScoped(scopes);
// Create the Drive service.
return new DriveService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = "Drive Authentication Sample",
});
}
catch (Exception ex)
{
Console.WriteLine("Create service account DriveService failed" + ex.Message);
throw new Exception("CreateServiceAccountDriveServiceFailed", ex);
}
}
让我知道如果你还需要什么，我有一个部分的样本项目构建。