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@ezequiel9
Last active July 18, 2022 19:23
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Login con Facebook en tu web Js. Simpe y facil.
// Previamente crear y configurar tu app desde facebook developers.
//insertá este código en tu página y agregá tu APP ID y listo!.. Lee los comentarios para mas detalles.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</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(); //llamás a la función testAPI que levanta el Correo, ID y NAME del usuario para luego guardarla en la DB
} 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 : '{TU-APP-ID}',
cookie : true, // enable cookies to allow the server to access
// the session
xfbml : true, // parse social plugins on this page
version : 'v2.5' // use graph api version 2.5
});
// 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() {
// si se ejecuta esta funcion es porque todo salió correctamente Ya podes guaradar los datos del usuario y cargar la session
// podrías usar el metodo post para enviar por ajax los datos a un archivo .php que se encargue del resto.
console.log('Welcome! Fetching your information.... ');
FB.api('/me', {fields: 'name, email'}, function(response) {
if (response && !response.error) {
/* handle the result */
console.log(JSON.stringify(response));//muestra en la consola del browser los datos recibidos!
//acá iría el .post();
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>
@ezequiel9
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Lo hice hace 5 años, capaz ya no funciona.

@Muak25
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Muak25 commented Jul 18, 2022

me aparece Please log into Facebook, y ahí se queda pegado, aunque esté loggeado en facebook sigue apareciendo igual.

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