Javascript FB.api - undefined error

Question

I am trying to use JS interface for facebook api and it is my first application for it. Here is a snippet:

HTML:

    <div id="fb-root"></div>
    <script src="https://connect.facebook.net/ru_RU/all.js"></script>
    <script type="text/javascript">facebook_init();</script>

JS:

function facebook_init() {
    FB.init({
      appId      : '<MY APP ID IS HERE>',
      channelUrl : '/media/channel.html', // Channel File
      status     : true, // check login status
      cookie     : true, // enable cookies to allow the server to access the session
      xfbml      : true  // parse XFBML
    });
    FB.api('/me', function(response) {
              alert('Your name is ' + response.name);
            });
}

channel.html:

<script src="https://connect.facebook.net/ru_RU/all.js"></script>

I have 'Your name is undefined' when I load this page. But this code

FB.ui({ method: 'apprequests',
      message: 'MSG',
      title: 'TITLE'});

works as expected. Could you please help me? Thanks!

Poru · Accepted Answer · 2012-02-09 20:48:27Z

2

If you log your response variable via console.log(response) you'll see what's wrong: You'll get an error object with this message:

"An active access token must be used to query information about the current user."

So if you want to get information about the current user you have to send also an Access Token. To get more information about this check the Facebook JS SDK page.

answered Feb 9, 2012 at 20:48

Poru

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Comments

Gz Zheng · Accepted Answer · 2012-02-09 20:50:18Z

1

You need to make sure that the user has logged into Facebook and authorized your app, before you call FB.api('/me', ...).

Here's the general information: http://developers.facebook.com/docs/guides/web/#login

answered Feb 9, 2012 at 20:50

Gz Zheng

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James P. · Accepted Answer · 2013-09-17 18:19:54Z

0

To overcome with Undefined problem use the following code:

  window.fbAsyncInit = function() {
// init the FB JS SDK
FB.init({
  appId      : '<APP ID>',                        
  status     : true,                                 
  xfbml      : true                                 
});

// Additional initialization code such as adding Event Listeners goes here

FB.getLoginStatus(function(response) {
  if (response.status === 'connected') {
alert("connected");
connecter=true;
FB.api('/me', function(user) {
alert(user.name);
alert(user.first_name);
alert(user.last_name);
alert(user.email);
});

  } 
 });

edited Sep 17, 2013 at 18:19

James P.

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answered Jun 7, 2013 at 9:02

Surya

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