更新提供错误的日历事件“指定的值不是有效的带引号的字符串" [英] Updating Calendar Event Giving Error "The specified value is not a valid quoted string"

问题描述

从今天开始，当我们尝试使用Google Calendar V3 API更新事件时，就会收到错误消息.

As of today we are getting an error when we try to update an event using Google Calendar V3 API.

这是我们的代码:

    string certificateFile = getCertificateFile();
    string certificatePassword = getCertificatePassword();
    string serviceAccountEmail = getServiceAccountEmail();

    X509Certificate2 certificate = new X509Certificate2(AppDomain.CurrentDomain.BaseDirectory + "certs//" + certificateFile, certificatePassword, X509KeyStorageFlags.Exportable);

    ServiceAccountCredential credential = new ServiceAccountCredential(
    new ServiceAccountCredential.Initializer(serviceAccountEmail)
    {
        Scopes = new[] { Google.Apis.Calendar.v3.CalendarService.Scope.Calendar },
        User = user
    }.FromCertificate(certificate));

    Google.Apis.Calendar.v3.CalendarService service = new Google.Apis.Calendar.v3.CalendarService(new BaseClientService.Initializer()
    {
        HttpClientInitializer = credential,
        ApplicationName = "Test",
    });

    try
    {
        Event evv = service.Events.Get(user, "6ebr4dp452m453n468movuntag").Execute();
        EventsResource.UpdateRequest ur = new EventsResource.UpdateRequest(service, evv, user, evv.Id);
        ur.Execute();
    }
    catch (Exception ex)
    {
        Response.Write(ex.Message);
    }

错误消息是指定的值不是有效的带引号的字符串."

The Error message is " The specified value is not a valid quoted string. "

这是始终有效的基本代码.我们仍然可以查询和插入事件.由于某些原因，更新刚刚停止工作?

This is basic code that always works. We can still query and insert Events. For some reason updates have just stopped working?

还有其他人得到这个吗?

Anybody else getting this?

推荐答案

我发现了问题所在:Google API的ETag功能似乎已损坏.

I found what is the problem: Google API's ETag functionality seems to be broken.

要解决该问题，我必须从

To get around the issue I had to download the source code of the .NET Google API client libraries from google-api-dotnet-client Downloads and commented the call to the method AddETag() on line 189 of ClientServiceRequest.cs; that method adds the If-Match ETag header that's currently causing the issues. This file is in the GoogleApis project.

    public HttpRequestMessage CreateRequest(Nullable<bool> overrideGZipEnabled = null)
    {
        var builder = CreateBuilder();
        var request = builder.CreateRequest();
        object body = GetBody();
        request.SetRequestSerailizedContent(service, body, overrideGZipEnabled.HasValue
            ? overrideGZipEnabled.Value : service.GZipEnabled);

        //AddETag(request);
        return request;
    }

有关Google如何使用Google的更多信息，请参见协议参考:更新条目. API使用ETag和If-Match标头.

See Protocol Reference: Updating Entries for more information on how Google API's use ETags and the If-Match header.

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