如何解决如何在 C# 中获取新的访问令牌?
我正在使用 API 请求在 c# 中阅读/发送 gmail 电子邮件。我有一个访问令牌,但它在一小时后过期,并且不再执行进一步的操作。请有人帮助我了解如何获取新的有效访问令牌?
先谢谢你!
编辑:
这是我获得授权的代码:
public static GmailService AuthenticateOauthGmail(string clientSecretJson,string userName)
{
try
{
if (string.IsNullOrEmpty(userName))
throw new ArgumentNullException("userName");
if (string.IsNullOrEmpty(clientSecretJson))
throw new ArgumentNullException("clientSecretJson");
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[] { "https://mail.google.com"};
//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/",System.Reflection.Assembly.GetExecutingAssembly().GetName().Name);
// Requesting Authentication or loading previously stored authentication for userName
Variables.Credential = GoogleWebAuthorizationBroker.AuthorizeAsync(GoogleClientSecrets.Load(stream).Secrets,scopes,userName,CancellationToken.None,new FileDataStore(credPath,true)).Result;
var newCredentials = GoogleWebAuthorizationBroker.ReauthorizeAsync(Variables.Credential,CancellationToken.None);
}
// Create Drive API service.
return new GmailService(new BaseClientService.Initializer()
{
HttpClientInitializer = Variables.Credential,ApplicationName = "Gmail Oauth2 Authentication Sample"
});
}
catch (Exception ex)
{
Console.WriteLine("Create Oauth2 account GmailService failed" + ex.Message);
throw new Exception("CreateServiceAccountGmailFailed",ex);
}
}
这就是我的 Credentials.Token 的样子 credentials.Token
由于访问令牌已过期,因此在尝试阅读邮件时出现错误:
{
"error": {
"code": 401,"message": "Request had invalid authentication credentials. Expected OAuth 2 access token,login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.","errors": [
{
"message": "Invalid Credentials","domain": "global","reason": "authError","location": "Authorization","locationType": "header"
}
],"status": "UNAUTHENTICATED"
}
}
我有 nuget 包 Google.Apis.Auth。我应该使用另一个吗?
解决方法
对于谷歌服务的扩展访问,您不能只颁发一个访问令牌,您应该使用刷新令牌。请参阅基本步骤 5:https://developers.google.com/identity/protocols/oauth2#:~:text=If%20your%20application%20needs%20access,long%20as%20they%20remain%20valid。
您可以在此类上使用 RefreshTokenAsync 方法: https://googleapis.dev/dotnet/Google.Apis.Auth/latest/api/Google.Apis.Auth.OAuth2.Flows.AuthorizationCodeFlow.html
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。