的Oauth 2-如何使用刷新令牌

我使用谷歌API來做出與客戶端應用程序日曆用戶日曆]同步更改。我無法找到關於如何以及何時使用刷新令牌的任何教程。以下是我的測試應用程序來讀取/寫入谷歌日曆。我如何檢查訪問令牌是否過期，我應該在哪裏做以及如何刷新令牌？的Oauth 2-如何使用刷新令牌

using Google.Apis.Auth.OAuth2; 
using Google.Apis.Calendar.v3; 
using Google.Apis.Calendar.v3.Data; 
using Google.Apis.Services; 
using Google.Apis.Util.Store; 
using Google.Apis; 
using System; 
using System.Collections.Generic; 
using System.IO; 
using System.Linq; 
using System.Text; 
using System.Threading; 
using System.Threading.Tasks; 

namespace CalendarQuickstart 
{ 
    class Program 
    { 
     // If modifying these scopes, delete your previously saved credentials 
     // at ~/.credentials/calendar-dotnet-quickstart.json 
     static string[] Scopes = { CalendarService.Scope.Calendar }; 
     static string ApplicationName = "test"; 

     static void Main(string[] args) 
     { 
      UserCredential credential; 

      using (var stream = new FileStream("NewFolder1/client_secret.json", FileMode.Open, FileAccess.Read)) 
      { 
       string credPath = System.Environment.GetFolderPath(
        System.Environment.SpecialFolder.Personal); 
       credPath = Path.Combine(credPath, ".credentials/test.json"); 

       credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
        GoogleClientSecrets.Load(stream).Secrets, 
        Scopes, 
        "user1234", 
        CancellationToken.None, 
        new FileDataStore(credPath, true)).Result; 

      } 

      // Create Google Calendar API service. 
      var service = new CalendarService(new BaseClientService.Initializer() 
      { 
       HttpClientInitializer = credential, 
       ApplicationName = ApplicationName, 
      }); 


      // Define parameters of request. 
      EventsResource.ListRequest request = service.Events.List("primary"); 
      request.TimeMin = DateTime.Now; 
      request.ShowDeleted = false; 
      request.SingleEvents = true; 
      request.MaxResults = 10; 
      request.OrderBy = EventsResource.ListRequest.OrderByEnum.StartTime; 

      // List events. 
      Events events = request.Execute(); 
      Console.WriteLine("Upcoming events:"); 
      if (events.Items != null && events.Items.Count > 0) 
      { 
       foreach (var eventItem in events.Items) 
       { 
        string when = eventItem.Start.DateTime.ToString(); 
        if (String.IsNullOrEmpty(when)) 
        { 
         when = eventItem.Start.Date; 
        } 
        Console.WriteLine("{0} ({1})", eventItem.Summary, when); 
       } 
      } 
      else 
      { 
       Console.WriteLine("No upcoming events found."); 
      } 

      ///////////// 
      Event newEvent = new Event() 
      { 
       Summary = "Google I/O 2015", 
       Description = "A chance to hear more about Google's developer products.", 

       Start = new EventDateTime() 
       { 
        DateTime = DateTime.Now, 
       }, 
       End = new EventDateTime() 
       { 
        DateTime = DateTime.Now.AddHours(1), 
       }, 
      }; 

      String calendarId = "primary"; 
      EventsResource.InsertRequest requestInsertEvent = service.Events.Insert(newEvent, calendarId); 
      Event createdEvent = requestInsertEvent.Execute(); 
      Console.WriteLine("Event created: {0}", createdEvent.Id); 
      ///////////// 

      Console.Read(); 

     } 
    } 
}

來源

2016-06-08 therko

您不需要測試訪問令牌是否過期客戶端庫將爲您處理該問題。

但是，如果由於某種原因，你真的想你可以把它送到

https://www.googleapis.com/oauth2/v3/tokeninfo?access_token=1/fFBGRNJru1FQd44AzqT3Zg

將返回如果它不是有效的錯誤。

來源

2016-06-08 06:54:13 DaImTo

所以我並不需要做任何提神？ – therko

不，您不使用文件數據存儲來存儲刷新令牌。客戶端庫擁有它們，並在需要時刷新訪問令牌。 – DaImTo

DaImTo是正確的，你不必擔心它的客戶端庫會爲你做的。

的講解和詳細資料，可瀏覽這裏： https://developers.google.com/api-client-library/dotnet/guide/aaa_oauth#acquiring--client-ids-and-secrets 包括User Credential部分提以下幾點：

UserCredential和AuthorizationCodeFlow採取自動「提神」令牌的照顧，這只是意味着獲得新的訪問令牌。這是通過使用長期存在的刷新令牌完成的，如果您在授權代碼流中使用access_type = offline參數，則會同時使用訪問令牌。

來源

2016-07-02 23:01:42 peleyal

的Oauth 2-如何使用刷新令牌

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