[英]Google Calendar API C# credentials throw an exception
我正在遵循本教程: https : //developers.google.com/google-apps/calendar/instantiate我的代码:
public static void Main()
{
UserCredential credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
new ClientSecrets()
{
ClientId = "actualclientid",
ClientSecret = "actualclientsecret"
},
new[] { CalendarService.Scope.Calendar },
"user",
CancellationToken.None).Result;
问题是,这部分代码使我抛出异常:
{“无法加载文件或程序集'Microsoft.Threading.Tasks.Extensions.Desktop,版本= 1.0.16.0,Culture =中性,PublicKeyToken = b03f5f7f11d50a3a'或其依赖项之一。系统找不到指定的文件。”: Microsoft.Threading.Tasks.Extensions.Desktop,版本= 1.0.16.0,区域性=中立,PublicKeyToken = b03f5f7f11d50a3a“}
PS .:虽然很可能与该问题无关,但是在Google上设置我的项目以获取凭据时,我选择了Installed Application-> Other(因为我假设这就是控制台应用程序)
编辑:添加https://www.nuget.org/packages/Microsoft.Bcl.Async/1.0.166-beta似乎已经解决了该问题。 现在剩下的代码:
var service = new CalendarService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = "Calendar API Test"
});
var x = service.Events.List("actualcalendarid").OauthToken;
Console.WriteLine(x);
Console.ReadLine();
返回一个空行,即使我运行该应用程序时它确实请求访问我的日历等。 我忘记了什么吗?
确保已将所有引用添加到项目中。
需要使用NuGet安装以下组件
-Install-Package Google.Apis.Calendar.v3 –Pre
-Install-Package Google.Apis -Pre
-Install-Package DotNetOpenAuth -Version 4.3.4.13329
-Install-Package Google.Apis.Auth.Mvc -Pre
并将引用Microsoft.Threading.Tasks.Extensions添加到您的项目。
编辑:您不检索数据,因为您不执行查询。
var result = service.Events.List("primary").Execute();
private async Task<UserCredential> GetCredential()
{
UserCredential credential = null;
try
{
using(var stream = new FileStream("client_secrets.json", FileMode.Open, FileAccess.Read))
{
credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
GoogleClientSecrets.Load(stream).Secrets,
new[] { CalendarService.Scope.Calendar },
"user", CancellationToken.None, new FileDataStore(""));
}
}
catch (IOException ioe)
{
Debug.WriteLine("IOException" + ioe.Message);
}
catch (Exception ex)
{
Debug.WriteLine("Exception" + ex);
}
return credential;
}
private CalendarService GetCalenderService(UserCredential credential)
{
CalendarService service = new CalendarService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = "Calendar Sample"
});
return service;
}
private Events GetEvent(string CalendarId)
{
var query = this.Service.Events.List(CalendarId);
query.ShowDeleted = false;
query.SingleEvents = true;
return query.Execute();
}
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