How to get access token from FB.login method in javascript SDK

Question

I need to get the access token from FB.login method in Javascript SDK. My login code is

FB.login(function(response) {
    if (response.session) {
        if (response.perms) {

        } else {
            // user is logged in, but did not grant any permissions
            alert("No Permission..");
        }
    } else {
        // user is not logged in
        alert("Please login to facebook");
    }
}, {perms:'read_stream,publish_stream,offline_access'});

Is there any way to get access token? I am able to get the access token using PHP.

Answer 1

You can get access token using FB.getAuthResponse()['accessToken']:

FB.login(function(response) {    if (response.authResponse) {      var access_token =   FB.getAuthResponse()['accessToken'];      console.log('Access Token = '+ access_token);      FB.api('/me', function(response) {      console.log('Good to see you, ' + response.name + '.');      });    } else {      console.log('User cancelled login or did not fully authorize.');    }  }, {scope: ''}); 

Edit: Updated to use Oauth 2.0, required since December 2011. Now uses FB.getAuthResponse(); If you are using a browser that does not have a console, (I'm talking to you, Internet Explorer) be sure to comment out the console.log lines or use a log-failsafe script such as:

if (typeof(console) == "undefined") { console = {}; }  if (typeof(console.log) == "undefined") { console.log = function() { return 0; } } 

Answer 2

response.session.access_token doesn't work in my code. But this works: response.authResponse.accessToken

     FB.login(function(response) { alert(response.authResponse.accessToken);
     }, {perms:'read_stream,publish_stream,offline_access'});