POST / /只能在GET之后才能工作 - 错误或设计？ [英] POST to /likes only works after GET - bug or by design?

问题描述

我的应用程式具有代表使用者在FB上喜欢某些内容的权限。使用Facebook C＃SDK（5.4.1），这里是我写的：

My app has permissions to "like" something on FB on a user's behalf. Using the Facebook C# SDK (5.4.1), here's what I wrote:

Facebook.FacebookClient fb = new Facebook.FacebookClient(AccessToken);
object o = fb.Get("1234567890_12345678901234567/likes");
dynamic parameters = new ExpandoObject();
dynamic success = fb.Post("1234567890_12345678901234567/likes", parameters);

第二行是多余的，创建一个不必要的往返行程，因为我们对其他喜欢在同一个对象上。但是，没有它，fb.Post失败并抛出远程服务器返回错误：（400）不良请求。

The second line is superfluous and creates an unnecessary round-trip, as we're not interested in the other "likes" on the same object. However, without it, fb.Post fails and throws "The remote server returned an error: (400) Bad Request."

这是C＃SDK中的一个错误，或图形API中的错误，还是设计错误？

Is this a bug in the C# SDK, or a bug in the graph API, or is it by design?

请注意，可以在没有先前GET的情况下POST /

Note that it's possible to POST to /comments without a previous GET.

推荐答案

是的，应该可以做没有得到的post命令。奇怪的是，像5.4.1一样的代码不需要在POST之前直接进行类似的额外的GET。也许在我应用程序的流程中的其他地方，我已经通过API完成了一些GET。但是，我将调查我的DELETE问题，我遇到的我/权限（http://stackoverflow.com/questions/8598614/facebook-c- sharp-api-return-400-when-deauthorizing-app），看看首先得到我/权限是否有助于解决这个问题。

Yes, it should be possible to do post commands without a get. Strangely enough, my like code with the 5.4.1 does not require the extra GET directly before the POST for doing a like. Maybe somewhere else in my app's flow I've already done some sort of GET via the API. However, I'm going to investigate my DELETE problem with me/permissions that I'm encountering (http://stackoverflow.com/questions/8598614/facebook-c-sharp-api-return-400-when-deauthorizing-app) and see if a get to the me/permissions first will help resolve that issue.

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