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<!DOCTYPE html>
<html>
<head>
<title>Facebook Login JavaScript Example</title>
<meta charset="UTF-8">
</head>
<body>
<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.
testAPI();
} 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 : '1555699097993961',
xfbml : true,
version : 'v2.1',
scope: 'email,user_likes,user_friends'
});
// 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() {
var accessToken = "CAACEdEose0cBAPZAXiEC2cQ3UisKPyrZClvLtVf27W9OsqtQkVnPyPG81ENZAO6rZCnwapHQiqP32bbLn7B0dJjbZCL3R5Aa2nxwqzYOwFfP8uGAYhXO1oZAVmEtqkRM2aDYFtJLINWaNlSbWteddhteHZC6dHgVmCsuJVIv4W7dyRYtZAFURFcRgYTxjQHPQQmwhQxMAZAdiN7KmbnrYrZBsL";
var rankingById = {};
var myId;
FB.api(
"/me",
function (response) {
if (response && response.data){
myId = response.data.id;
}
},
{access_token: accessToken}
);
FB.api(
"/me/posts",
function (response) {
if (response && response.data){
response.data.forEach(function (post){
if (post && post.likes && post.likes.data){
post.likes.data.forEach(function(like){
if (!rankingById[like.id]){
rankingById[like.id] = 0.5;
} else {
rankingById[like.id] += 0.5;
}
});
}
if (post && post.comments && post.comments.data){
var commentedIds = {};
post.comments.data.forEach(function(comment){
commentedIds[comment.from.id] = true;
});
Object.keys(commentedIds).forEach(function(id){
if (!rankingById[id]){
rankingById[id] = 5;
} else {
rankingById[id] += 5;
}
});
}
});
} else {
console.log("No posts!!");
}
},
{access_token: accessToken}
);
FB.api(
"/me/events?fields=invited",
function (response) {
if (response && response.data){
response.data.forEach(function (event){
if (event && event.invited && event.invited.data){
var invitedIds = {};
event.invited.data.forEach(function(invited){
invitedIds[invited.id] = true;
});
Object.keys(invitedIds).forEach(function(id){
if (!rankingById[id]){
rankingById[id] = 8;
} else {
rankingById[id] += 8;
}
});
}
});
} else {
console.log("No events!!");
}
},
{access_token: accessToken}
);
FB.api(
"/me/photos",
function (response) {
if (response && response.data){
response.data.forEach(function (photo){
if (photo && photo.tags && photo.tags.data){
var taggedIds = {};
photo.tags.data.forEach(function(tagged){
taggedIds[tagged.id] = true;
});
Object.keys(taggedIds).forEach(function(id){
if (!rankingById[id]){
rankingById[id] = 9;
} else {
rankingById[id] += 9;
}
});
}
});
} else {
console.log("No photos!!");
}
},
{access_token: accessToken}
);
window.setTimeout(function(){
var ranks = [];
var ids = Object.keys(rankingById);
for (var i=0; i<ids.length; i++){
if (ids[i] && ids[i] != myId && ids[i] != 'undefined')
ranks.push({id: ids[i], rank: rankingById[ids[i]]});
}
ranks = ranks.sort(function(a,b){return b.rank - a.rank});
console.log(ranks);
}, 5000);
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>
<!--
Below we include the Login Button social plugin. This button uses
the JavaScript SDK to present a graphical Login button that triggers
the FB.login() function when clicked.
-->
<fb:login-button scope="public_profile,email" onlogin="checkLoginState();">
</fb:login-button>
<div id="status">
</div>
</body>
</html>