检索fbsdk访问令牌和用户ID的问题 [英] Issues retrieving fbsdk Access Token and User ID

问题描述

我正在尝试在我的React Native App中检索登录用户的访问令牌和用户ID。出于某种原因，当我尝试更新fbsdkcore软件包时，它不再存在了。所以，我试图在一般的fbsdk包中解决它。

I am trying to retrieve the Access Token and User ID of the logged in user in my React Native App. For some reason when I tried to update the fbsdkcore package, it did not exist anymore. So, I tried to resolve it within the general fbsdk package.

我正在调用包中的js文件（我认为它检索了accesstoken）：

I am calling the js file (of which I think retrieves the accesstoken) in the package as:

const AccessToken = require('react-native-fbsdk/js/FBAccessToken');

随后在我的代码中我尝试记录它以便我可以看到它是否有效，只需通过：

And subsequently in my code I try to log it so that I can see if it works, simply by:

console.log(AccessToken.getCurrentAccessToken());
console.log(AccessToken.getUserId);

但是日志只返回：

2016-05-05 10:22:28.276 [info][tid:com.facebook.React.JavaScript] { _45: 0, _81: 0, _65: null, _54: null }
2016-05-05 10:22:28.277 [info][tid:com.facebook.React.JavaScript] undefined

这似乎不是我正在寻找的机器人。

Which does not seem to be the droids that im looking for.

我检查了fbsdk包中的js文件的代码和 getCurrentAccessToken 代码如下所示：

I inspected the code for the js file in the fbsdk package and the getCurrentAccessToken code looks like this:

  /**
   * Getter for the access token that is current for the application.
   */
  static getCurrentAccessToken(): Promise<?FBAccessToken> {
    return new Promise((resolve, reject) => {
      AccessToken.getCurrentAccessToken((tokenMap) => {
        if (tokenMap) {
          resolve(new FBAccessToken(tokenMap));
        } else {
          resolve(null);
        }
      });
    });
  }

这当然看似合理。但是，当我试图调用它时，我得到了这个非常奇怪的结果，我担心我在大局中做错了什么。我甚至修改了 resolve（null）部分代码，以便我可以确定发生了什么。但它仍然返回相同的奇怪令牌。

Which of course seems reasonable. But since I get this really weird result when I try to call it, I get worried over that I have done something wrong in the bigger picture. I even modified the resolve(null) part of the code so that I could make sure of what happend. But it still returned the same weird "token".

登录时日志也会返回此错误：

The log also returns this error when logging in:

2016-05-05 10:22:07.630 AppName[15097:415865] -canOpenURL: failed for URL: "fbauth2:/" - error: "(null)"

但我认为这只是因为我的xcode模拟器上没有facebook应用程序。

But I think that is only because I don't have the facebook app on my xcode simulator.

有人能给我一个很好的猜测我做错了吗？

Can anybody throw me a good guess on what I have done wrong??

推荐答案

GetCurrentAccestoken 返回一个承诺。

也许你可以试试：

AccessToken.getCurrentAccessToken().then(
    (data) => {
        console.log(data.accessToken.toString())
    }
)

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