谷歌+无法插入时刻-一年和6个修订后

Question

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一年前，我在创造时刻方面遇到了困难。那时我使用的是Google+ API . net客户端1.2版本。正如我在这篇文章中所描述的，我让它工作，尽管代码不能不时插入一个时刻。我希望这个过程现在更稳定，更容易实现，看起来就像你可以在这里下载的例子中看到的那样——写这篇文章时的当前版本是v1.8。因此，我按照下载中的SimpleOAuth2示例创建了一个简单的项目，但实现了Google+。这是我找到的代码:

public partial class _Default : System.Web.UI.Page
{        
    private PlusService service;
// Application logic should manage users authentication. 
// This sample works with only one user. You can change
// it by retrieving data from the session.
private const string UserId = "user-id";
protected void Page_Load(object sender, EventArgs e)
{
    GoogleAuthorizationCodeFlow flow;
    var assembly = Assembly.GetExecutingAssembly();
    using (var stream = assembly.GetManifestResourceStream(
          "GPlusSample.client_secrets.json"))
    {
        flow = new GoogleAuthorizationCodeFlow(
                   new GoogleAuthorizationCodeFlow.Initializer
        {
            DataStore = new FileDataStore("GPlusSample.Store"),
            ClientSecretsStream = stream,
            // 
            // Tried only this scope but it did not work
            //Scopes = new[] { PlusService.Scope.PlusMe }
            //
            // I tried the following: but did not work either
            //Scopes = new[] { PlusService.Scope.PlusMe, 
            //            "https://www.googleapis.com/auth/plus.moments.write" }
            //
            // I tried this as well and it failed
            //Scopes = new[] { PlusService.Scope.PlusLogin }
            //
            // Maybe this... but still no joy
            Scopes = new[] { PlusService.Scope.PlusLogin, 
                             PlusService.Scope.PlusMe }
        });
    }
    var uri = Request.Url.ToString();
    var code = Request["code"];
    if (code != null)
    {
        var token = flow.ExchangeCodeForTokenAsync(UserId, code,
            uri.Substring(0, uri.IndexOf("?")), CancellationToken.None).Result;
        // Extract the right state.
        var oauthState = AuthWebUtility.ExtracRedirectFromState(
            flow.DataStore, UserId, Request["state"]).Result;
        Response.Redirect(oauthState);
    }
    else
    {
        var result = new AuthorizationCodeWebApp(flow, uri, uri)
            .AuthorizeAsync(UserId, CancellationToken.None).Result;
        if (result.RedirectUri != null)
        {
            // Redirect the user to the authorization server.
            Response.Redirect(result.RedirectUri);
        }
        else
        {
            // The data store contains the user credential, 
            // so the user has been already authenticated.
            service = new PlusService(new BaseClientService.Initializer
            {
                ApplicationName = "Plus API Sample",
                HttpClientInitializer = result.Credential
            });
        }
    }
}
/// <summary>Gets the TasksLists of the user.</summary>
public async System.Threading.Tasks.Task InsertMoment()
{
    try
    {                
        var me = service.People.Get("me").Execute();
        var request = service.Moments.Insert(new Moment()
        {
            Target = new ItemScope { 
                Id=Guid.NewGuid().ToString(),
                Image="http://www.google.com/s2/static/images/GoogleyEyes.png",
                Type="",
                Name = "test message",
                Description="test",
                Text="test message",                        
            },
            Type = "http://schemas.google.com/AddActivity",                    
        }, me.Id, MomentsResource.InsertRequest.CollectionEnum.Vault);
        var response =await request.ExecuteAsync();
        output.Text = "<h1>" + response.Id + "</h1>";
    }
    catch (Exception ex)
    {
        var str = ex.ToString();
        str = str.Replace(Environment.NewLine, Environment.NewLine + "<br/>");
        str = str.Replace("  ", " &nbsp;");
        output.Text = string.Format("<font color="red">{0}</font>", str);
    }
} 
protected async void createMomentButton_Click(object sender, EventArgs e)
{
    await InsertMoment();
}
}

该代码总是给我一个401未经授权的错误，即使我有Google+ API 打开为我的项目。下面是我得到的实际错误:

service plus抛出了一个异常:Google。GoogleApiException:google . api . requests . requesterror Unauthorized [401] Errors [消息[未经授权]位置[-]原因[未经授权]域[global]]

有趣的是，插入时刻失败了，即使调用People.Get("me")有效——get("me")适用于我上面列出的所有作用域组合。值得注意的是，每次我尝试一个新的作用域时，我首先注销我的Google帐户，并删除存储在GPlusSample.Store中的访问令牌。

编辑

我试着设置只是Url，而不是由伊恩建议的个别项目，我得到了完全相同的错误。

var request = service.Moments.Insert(new Moment()
{
    Target = new ItemScope {
        Url = "https://developers.google.com/+/web/snippet/examples/thing"
        },
    Type = "http://schemas.google.com/AddActivity",
}, me.Id, MomentsResource.InsertRequest.CollectionEnum.Vault);
var response =await request.ExecuteAsync();

Answer 1

https://www.googleapis.com/auth/plus.login是编写时刻的正确范围，但您还需要请求您想要编写的特定应用程序活动类型。它的参数是request_visible_actions，它接受一个空格分隔的类型参数列表(列在https://developers.google.com/+/api/moment-types/上-例如http://schemas.google.com/AddActivity)。

客户端库可能没有添加request_visible_actions的方法，所以你可能不得不将它添加到你手动重定向用户到的auth URL上(记住URLencode应用程序活动类型URL !)