如何在Facebook的API API中显示访问令牌？ [英] How do I get the access token explicitly in the Facebook API for iPhone?

问题描述

我最近下载了Facebook iPhone演示应用程序。我已经做了几次尝试来掌握身份验证过程，我完全感到困惑。似乎有很多示例代码已经在此版本的API中被废弃了。

在我的主视图控制器的.m文件中，我在开始时有以下几点：

  #importFBConnect.h
  / pre> 
 
 
需要Facebook信息的按钮使用此行，与演示应用不变：
  [_ facebook requestWithGraphPath：@meandDelegate：self]; 
  
这将调用以下方法：
   - （void）request：（FBRequest *）request didLoad：（id）result {
  
我已经把这个方法的功能插入了。我从Facebook中提取了一些我需要的东西，并在HTTP POST命令中将其发送到我的后端。例如，[result objectForKey：@id]返回id，[result objectForKey：@name]返回名称。但是，[result objectForKey：@access_token]什么都不返回。这是非常令人沮丧的，因为我需要将访问令牌传递到我的Google App Engine用户管理后端以创建一个新的用户。所以，希望我的代码包括使我的授权策略清楚（无论是什么）。有谁知道如何在这个上下文中获取访问令牌？如果您能帮我解决我需要包含的头文件等等，我会感激的。
 
 
 
谢谢，
 
 
 
 John 
解决方案
我正在做同样的确切事情。我正在制作我自己的HTTP请求，所以我需要accessToken，而且更重要的是，即使没有过期请求，iOS Facebook SDK也不记得accessToken过去的发布！
 
 
 
调用[_facebook authorize：permissions delegate：self];在fbDidLogin委托调用中，您可以轻松地拉（假设您的脸书对象保留在_facebook中）：
   - （void） fbDidLogin {
 NSString * accessToken = _facebook.accessToken; 
 NSDate * expirationDate = _facebook.expirationDate; 
} 
  
Voilà。
 
 
 
要通过应用启动处理持久性，您可以保存此数据，并在任何请求之前手动设置这些访问器。
 
I downloaded the Facebook iPhone demo app recently.  I have made several attempts to grasp the authentication process and I'm totally confused.  There seems to be a lot of sample code out there that has been rendered obsolete in this version of the API.

In the .m file for my primary view controller, I have the following at the start:
#import "FBConnect.h"
The button that requires information from Facebook uses this line, unchanged from the demo app:
[_facebook requestWithGraphPath:@"me" andDelegate:self]; 
This calls the following method:
- (void)request:(FBRequest *)request didLoad:(id)result {
I have hacked my functionality into this method.  I pull a few things I need from Facebook and send them to my backend in a HTTP POST command. For example, [result objectForKey:@"id"] returns the id and [result objectForKey:@"name"] returns the name.  However, [result objectForKey:@"access_token"] returns nothing.  This is very frustrating because I need to pass the access token to my Google App Engine user management back end to create a new user.  So, hopefully the code I have included makes my authetication strategy clear (whatever it is).  Does anyone know how I can get the access token in this context?  I would appreciate it if you could help me out with what header files I need to have included etc. ?

Thanks,

John
解决方案
I'm doing the same exact thing you are. I'm making my own HTTP requests, so I need the accessToken, and what's more, the iOS Facebook SDK doesn't remember the accessToken past launches, even with a no-expire request!

After calling [_facebook authorize:permissions delegate:self]; In the fbDidLogin delegate call, you can easily pull (assuming you have the facebook object retained in _facebook):
- (void)fbDidLogin {
NSString *accessToken = _facebook.accessToken;
NSDate *expirationDate = _facebook.expirationDate;
}
Voilà.

To handle persistence through app launches, you can save this data and manually set those accessors prior to any requests.

                        
这篇关于如何在Facebook的API API中显示访问令牌？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！