Question

In this script

function fql(){
            FB.api('/me', function(response) {
                 var query = FB.Data.query('select uid, name, email from user where uid={0}', response.id);
                 query.wait(function(rows) {

                   document.getElementById('name').innerHTML =
                     'Your name: ' + rows[0].name + "<br />" +
                     + rows[0].email +  "<br />" + rows[0].uid;
                 });
            });
        }    

Function returns name and pic, but email value is NaN. App requires basic data and email (it was set in app properties/Auth dialog) but i cant get user email.
When I tested this query in Facebook test console, I’ve got email field with correct value.

Answer 1

Check that in Test Console and on your site you use the same application id and ensure that user have granted the email permission to your application!

This can be done with simple Graph API call:

FB.api('/me/permissions', function(response){
  if (response && response.data){
    var userPermissions = response.data.shift();
    if (userPermissions.email){
      alert('User is granted email permission');
    } else {
      alert('User is NOT granted email permission');
    }
  } else {
    // No response or results from the Graph API
  }
});

---

Couple of things you should be aware of!

1. FB.Data.* is gone! It’s deprecated, undocumented and should not be used anymore! It’s just a matter of time for it to disappear from the JavaScript SDK code…
2. You just doesn’t want extra call just to figure the id of current user (most chances that you already have it, just check FB.getUserID()), in FQL use me() to refer to current user.

Rewrite your usage of FB.Data.* and query.wait with:

FB.api('/fql', {q:'YOUR_FQL_QUERY_HERE'}, function(response){
  var rows = response.data;  
});

In your case same results may be received by Graph API call without usage of FQL:

FB.api('/me', {fields: 'id,name,email'}, function(response){
  // response -> {id: UID, name: 'User Name', email: '[e-mail]'}
  console.log(response);
});