So I found a tutorial on Facebook Login Integration at: http://www.excellencemagentoblog.com/facebook-login-integration-website
I followed it step by step and Google Chromes Developer Tools give me an error after clicking Facebook Login saying:
Uncaught TypeError: object is not a function index.php:53
onclick
The button html is like this:
<a class="btn btn-success" href='#' onclick='login();'>
<i class="icon-facebook"></i>
Facebook Login
</a>
The script is as follows, I really can't tell what is wrong because the function is defined within the script.
<script type="text/javascript">
window.fbAsyncInit = function() {
FB.init({
appId : ' 163289720517425', // App ID
channelURL : '', // Channel File, not required so leave empty
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
oauth : true, // enable OAuth 2.0
xfbml : false // parse XFBML
});
};
// logs the user in the application and facebook
function login(){
FB.getLoginStatus(function(r){
if(r.status === 'connected'){
window.location.href = 'php/fbconnect.php';
}else{
FB.login(function(response) {
if(response.authResponse) {
//if (response.perms)
window.location.href = 'php/fbconnect.php';
} else {
// user is not logged in
}
},{scope:'email'}); // which data to access from user profile
}
});
}
// Load the SDK Asynchronously
(function() {
var e = document.createElement('script'); e.async = true;
e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js';
document.getElementById('fb-root').appendChild(e);
}());
</script>
Not too sure of the problem you're having here....cuz even when I boiled it down to just the function with an alert....it still didn't work???? Meaning it had nothing to do with facebook.
Anyways....this is how I would do it....
You're doing a cross domain request...so you have to register your domain....
Also....FB provides a javascript SDK, so no need to use both PHP and Javascript as you were trying...
window.fbAsyncInit = function() {
// init the FB JS SDK
FB.init({
appId : '163289720517425', // App ID from the app dashboard
channelUrl : '//WWW.YOUR_DOMAIN.COM/channel.html', // Channel file for x-domain comms!!
cookie : true, // enable cookies to allow the server to access the session
oauth : true, // enable OAuth 2.0
status : true, // Check Facebook Login status
xfbml : true // Look for social plugins on the page
});
// Additional initialization code such as adding Event Listeners goes here
$('.btn-success').click(login);
};
// Load the SDK asynchronously
(function(d, s, id){
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) {return;}
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/en_US/all.js";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));
function login(){
FB.login(function(response) {
if (response.authResponse) {
console.log('Welcome! Fetching your information.... ');
FB.api('/me', function(response) {
console.log('Good to see you, ' + response.name + '.');
});
} else {
console.log('User cancelled login or did not fully authorize.');
}
});}
Related
I am developing a simple web game with my friends. I have integrated facebook login using the javascript sdk provided by FB. Basically, the first page of the web game is main.html, in which I added successfully a Facebook button using the code provided by Facebook:
<script>
// This is called with the results from from FB.getLoginStatus().
function statusChangeCallback(response) {
console.log('statusChangeCallback');
console.log(response);
// The response object is returned with a status field that lets the
// app know the current login status of the person.
// Full docs on the response object can be found in the documentation
// for FB.getLoginStatus().
if (response.status === 'connected') {
// Logged into your app and Facebook.
window.location.href = "mode.html";
} else if (response.status === 'not_authorized') {
// The person is logged into Facebook, but not your app.
document.getElementById('status').innerHTML = 'Please log ' +
'into this app.';
} else {
// The person is not logged into Facebook, so we're not sure if
// they are logged into this app or not.
document.getElementById('status').innerHTML = 'Please log ' +
'into Facebook.';
}
}
// This function is called when someone finishes with the Login
// Button. See the onlogin handler attached to it in the sample
// code below.
function checkLoginState() {
FB.getLoginStatus(function(response) {
statusChangeCallback(response);
});
}
window.fbAsyncInit = function() {
FB.init({
appId : 'xxx',
cookie : true, // enable cookies to allow the server to access
// the session
xfbml : true, // parse social plugins on this page
version : 'v2.3' // use version 2.3
});
// Now that we've initialized the JavaScript SDK, we call
// FB.getLoginStatus(). This function gets the state of the
// person visiting this page and can return one of three states to
// the callback you provide. They can be:
//
// 1. Logged into your app ('connected')
// 2. Logged into Facebook, but not your app ('not_authorized')
// 3. Not logged into Facebook and can't tell if they are logged into
// your app or not.
//
// These three cases are handled in the callback function.
FB.getLoginStatus(function(response) {
statusChangeCallback(response);
});
};
// Load the SDK asynchronously
(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/en_US/sdk.js";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));
// Here we run a very simple test of the Graph API after login is
// successful. See statusChangeCallback() for when this call is made.
function testAPI() {
console.log('Welcome! Fetching your information.... ');
FB.api('/me', function(response) {
console.log('Successful login for: ' + response.name);
document.getElementById('status').innerHTML =
'Thanks for logging in, ' + response.name + '!';
});
}
</script>
<fb:login-button scope="public_profile,email" onlogin="checkLoginState();">
</fb:login-button>
Once login is successful, the page would be directed to another html page. In that html page, I tried to add an Facebook logout button. Trying for some hours, in vain. The most frequent error obtained is something like "FB is underfined".
Finally I decided to download a .png of FB logout button and include this .png as src image to "make" a button by myself, still in vain, rather frustrating.
The code I included in that another html page is as follows.
<script>
// This is called with the results from from FB.getLoginStatus().
window.fbAsyncInit = function() {
FB.init({
appId : 'xxx',
cookie : true, // enable cookies to allow the server to access
// the session
xfbml : true, // parse social plugins on this page
version : 'v2.3' // use version 2.3
});
// Load the SDK asynchronously
(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/en_US/sdk.js";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));
function fbLogout() {
FB.logout(function (response) {
//Do what ever you want here when logged out like reloading the page
window.location.reload();
});
}
</script>
<button id="fblogout" onclick="fbLogout();""><img src="src/logout_fb.png"> </button>
The error I retrieved from the Chrome console is "Uncaught ReferenceError: fbLogout is not defined"
Have you tried using the "Enable logout button" at the plugin page: https://developers.facebook.com/docs/plugins/login-button
That will give you a button like this:
<div
class="fb-login-button"
data-max-rows="1"
data-size="medium"
data-show-faces="false"
data-auto-logout-link="true" />
If you use that code, you will either see a Login or Logout button, depending on the state. This can be used with the normal FB SDK for Javascript.
I'm trying to integrate a Facebook login with my website, and I'm testing out my Facebook login right now through a local host. This is the code I've generated from following the instructions on the Facebook JavaScript SDK guide.
<html>
<body>
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({
appId : '*************', // App ID
channelUrl : 'http://localhost', // Channel File
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
xfbml : true // parse XFBML
});
FB.getLoginStatus(function(response) {
if (response.status === 'connected') {
// connected
testAPI();
} else if (response.status === 'not_authorized') {
// not_authorized
login();
} else {
// not_logged_in
login();
}
});
};
function login() {
FB.login(function(response) {
if (response.authResponse) {
// connected
testApi();
} else {
// cancelled
console.log('Login failed!');
}
});
function testAPI() {
console.log('Welcome! Fetching your information.... ');
FB.api('/me', function(response) {
console.log('Good to see you, ' + response.name + '.');
});
}
}
(function(d){
var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
if (d.getElementById(id)) {return;}
js = d.createElement('script'); js.id = id; js.async = true;
js.src = "//connect.facebook.net/en_US/all.js";
ref.parentNode.insertBefore(js, ref);
}(document));
</script>
<script src="//connect.facebook.net/en_US/all.js"></script>
</body>
</html>
It's saying that it failed to load resource: file://connect.facebook.net/en_US/all.js It's basically failing GET all.js. What's wrong?
My Facebook App Dashboard has localhost as the AppDomain and Site URL as http://localhost.
Try following code.
(function(){
var e = document.createElement('script');
e.type = 'text/javascript';
e.src = 'http://connect.facebook.net/en_US/all.js';
e.async = true;
document.getElementById('fb-root').appendChild(e);
}());
2018 Updated Answer:
1) The test HTML file can't be loaded as file:// it needs to be loaded under a web server (eg: http://localhost/test.html )
2) Disable script/ad blockers. Most of them see the FB SDK as "evil" and block it.
I'm using Parse Javascript SDK to authenticate to Facebook and even though I get a success after login, my Facebook session is not created. Here is the code I use,
<div id="fb-root"></div>
<script>
// Additional JS functions here
window.fbAsyncInit = function() {
Parse.FacebookUtils.init({
appId : 'xxxx', // Facebook App ID
// channelUrl : '//WWW.YOUR_DOMAIN.COM/channel.html', // Channel File
status : true, // check login status
cookie : true, // enable cookies to allow Parse to access the session
xfbml : true // parse XFBML
});
};
// Load the SDK Asynchronously
(function(d){
var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
if (d.getElementById(id)) {return;}
js = d.createElement('script'); js.id = id; js.async = true;
js.src = "//connect.facebook.net/en_US/all.js";
ref.parentNode.insertBefore(js, ref);
}(document));
function fLogin() {
Parse.FacebookUtils.logIn(null, {
success: function(user) {
alert("login success with user " + JSON.stringify(user));
if (!user.existed()) {
alert("User signed up and logged in through Facebook!");
} else {
alert("User logged in through Facebook!");
}
//FB.api('/me', function(response) {
// alert("got fb me api=" + JSON.stringify(response));
//});
},
error: function(user, error) {
alert("User cancelled the Facebook login or did not fully authorize.");
}
});
}
</script>
<button class="btn-facebook btn-large" onclick="fLogin();"><img src="./img/fb_icon.png"> <span class="btn-facebook-text">Login with Facebook</span></button>
After the popup window opens and I log into Facebook, I get the console message "login success with user " and I can see the access token. However when I try to call FB.api ("/me")... I get an error saying Invalid access token from Facebook.. And When I go back to Facebook, I see that it didn't log me into Facebook either...
If I replace this whole code with FB.init() and FB.login() it works just fine.. Its when I replace it with Parse FacebookUtils that I get the error.
Any help will be greatly appreciated.
I'm trying to enable Facebook login to my site via Javascript but when the user logs in, the Facebook popup doesn't closes. Instead it shows the following message:
An error may have occurred as part of the login process. You can close this window and try returning to the application, though it may ask you to login again. This is likely due to a bug in the application.
If I click again on the login button, everything works fine.
This is my code:
// Load the SDK Asynchronously
(function(d){
var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
if (d.getElementById(id)) {return;}
js = d.createElement('script'); js.id = id; js.async = true;
js.src = "//connect.facebook.net/en_US/all.js";
ref.parentNode.insertBefore(js, ref);
}(document));
// Init the SDK upon load
window.fbAsyncInit = function() {
var doLogin = function (response) {
url = '//'+window.location.hostname+'? access_token='+response.authResponse.accessToken;
window.top.location = url;
};
FB.init({
appId : 'MY_APP_ID', // App ID
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
xfbml : true, // parse XFBML
oauth : true,
channelUrl : '//'+window.location.hostname+'/static/html/channel.html'
});
FB.Event.subscribe('auth.login', function(response) {
doLogin(response);
})
FB.getLoginStatus(function(response) {
if (response.status == 'connected') {
doLogin(response);
}
}, true);
}
You should try something like this:
https://gist.github.com/3370553
Or you could replace AuthorizeFacebook with "FB.login" from the JS API
My App on Facebook uses the JavaScript SDK. When a user navigates to my app page and goes to my app, a popup asks them to authorize the app. This works well.
However, if they authorize the app, then return to it later, another pop-up (which i believe to be another authorization window) will quickly open then close.
What is my code is doing this? Code is below.
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({
appId : '221953271200525', // App ID
channelURL : '//www.vidjahgames.com/fall/channel.html', // Channel File
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
oauth : true, // enable OAuth 2.0
xfbml : true // parse XFBML
});
// Additional initialization code here
FB.login(function(response) {
if (response.authResponse) {
console.log('Welcome! Fetching your information.... ');
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: 'email'});
};
// Load the SDK Asynchronously
(function(d){
var js, id = 'facebook-jssdk'; if (d.getElementById(id)) {return;}
js = d.createElement('script'); js.id = id; js.async = true;
js.src = "//connect.facebook.net/en_US/all.js";
d.getElementsByTagName('head')[0].appendChild(js);
}(document));
</script>
FB.login makes the popup appear, so you should first know if the user is logged in and if not make the login popup appear:
FB.getLoginStatus(function(response) {
if (response.session) {
// A user has logged in, and a new cookie has been saved
FB.api('/me', function(response) {
_userName = response.name;
alert("hello"+_userName);
}.bind(this));
} else {
FB.login(function(response) {
// the rest of your code here...
}
}
});