{"id":3008,"date":"2022-09-07T23:41:03","date_gmt":"2022-09-07T18:41:03","guid":{"rendered":"https:\/\/www.edopedia.com\/blog\/?p=3008"},"modified":"2022-09-07T23:41:05","modified_gmt":"2022-09-07T18:41:05","slug":"facebook-login-in-javascript-using-facebook-sdk-graph-api","status":"publish","type":"post","link":"https:\/\/www.edopedia.com\/blog\/facebook-login-in-javascript-using-facebook-sdk-graph-api\/","title":{"rendered":"Facebook Login in JavaScript using Facebook SDK & Graph API"},"content":{"rendered":"\n

In this tutorial, I will guide you on how to add a Facebook login system to your website or app.<\/p>\n\n\n\n

You might have seen many apps that accept login from different social media platforms (i.e. Facebook, Google, Microsoft, GitHub, Twitter, etc.). Basically, a social login enables us to quickly register new users in our app without forcing them to fill lengthy signup forms.<\/p>\n\n\n\n

Today, we will use Facebook login JavaScript SDK<\/strong> and Graph API<\/strong> to implement Facebook login. The complete sample code of JavaScript Facebook Login with examples is given below.<\/p>\n\n\n\n

Add Facebook Developer App<\/h2>\n\n\n\n

At first, you need to add a new app in the Facebook developers<\/a> section. So, let’s add a new app and get its app ID.<\/p>\n\n\n\n

\"Facebook<\/figure>\n\n\n\n
\"create<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n

Now copy this app ID and store it somewhere. We will use this app ID in our application.<\/p>\n\n\n\n

Facebook Login JavaScript Sample Code<\/h2>\n\n\n\n

After that, create a new file index.html for the login and logout button.<\/p>\n\n\n\n

index.html<\/h2>\n\n\n\n
<!DOCTYPE html>\n<html>\n<head>\n<title>Facebook Login using JavaScript and jQuery<\/title>\n<meta charset="UTF-8">\n<\/head>\n<style>\n<\/style>\n<script src="init.js"><\/script>\n<body>\n    <button id="login">Login with Facebook<\/button>\n    <button style="display:none;" id="logout">Logout<\/button>           \n    <div id="status">\n    <\/div>\n<\/body>\n<script src="https:\/\/ajax.googleapis.com\/ajax\/libs\/jquery\/3.3.1\/jquery.min.js"><\/script>\n<script src="script.js"><\/script>\n<\/html><\/pre><\/div>\n\n\n\n
init.js<\/h2>\n\n\n\n
Here you need to copy\/paste your app ID which we generated earlier at the specified location (i.e. Code Line # 13).<\/p>\n\n\n\n
(function(d, s, id) {\n    var js, fjs = d.getElementsByTagName(s)[0];\n    if (d.getElementById(id)) return;\n    js = d.createElement(s); js.id = id;\n    js.src = "https:\/\/connect.facebook.net\/en_US\/sdk.js";\n    fjs.parentNode.insertBefore(js, fjs);\n  }(document, 'script', 'facebook-jssdk'));\n \n  \/\/ initialize the facebook sdk\n \n  window.fbAsyncInit = function() {\n    FB.init({\n      appId      : '#### YOUR APP ID ########',\n      cookie     : true,  \/\/ enable cookies to allow the server to access \n                          \/\/ the session\n      xfbml      : true,  \/\/ parse social plugins on this page\n      version    : 'v3.1' \/\/ The Graph API version to use for the call\n    });\n}<\/pre><\/div>\n\n\n\n
script.js<\/h2>\n\n\n\n
$(document).ready(function(){   \n \n  \/\/ add event listener on the login button\n  $("#login").click(function(){\n    \n    facebookLogin();\n    \n  });\n  \n  \/\/ add event listener on the logout button\n  $("#logout").click(function(){\n \n    $("#logout").hide();\n    $("#login").show();\n    $("#status").empty();\n    facebookLogout();\n \n  });\n  \n  function facebookLogin()\n  {\n    FB.getLoginStatus(function(response) {\n        console.log(response);\n        statusChangeCallback(response);\n    });\n  }\n  \n  function statusChangeCallback(response)\n  {\n      console.log(response);\n      if(response.status === "connected")\n      {\n         $("#login").hide();\n         $("#logout").show(); \n         fetchUserProfile();\n      }\n      else{\n          \/\/ Logging the user to Facebook by a Dialog Window\n          facebookLoginByDialog();\n      }\n  }\n  \n  function facebookLoginByDialog()\n  {\n    FB.login(function(response) {\n       \n        statusChangeCallback(response);\n       \n    }, {scope: 'public_profile,email'});\n  }\n  \n  function fetchUserProfile()\n  {\n    console.log('Welcome!  Fetching your information.... ');\n    FB.api('\/me?fields=id,name,email,gender,birthday', function(response) {\n      console.log(response);\n      console.log('Successful login for: ' + response.name);\n      var profile = `<h1>Welcome {response.name}<h1>\n      <h2>Your email is ${response.email}<\/h2>\n      <h3>Your Birthday is ${response.birthday}<\/h3>`;\n      $("#status").append(profile);\n    });\n  }\n  \n  function facebookLogout()\n  {\n    FB.logout(function(response) {\n        statusChangeCallback(response);\n    });\n  }\n}<\/pre><\/div>\n","protected":false},"excerpt":{"rendered":"
In this tutorial, I will guide you on how to add a Facebook login system to your website or app. You might have seen many apps that accept login from different social media platforms (i.e. Facebook, Google, Microsoft, GitHub, Twitter, etc.). Basically, a social login enables us to quickly register new users in our app … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":1762,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[112],"tags":[],"class_list":["post-3008","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorials"],"yoast_head":"\nFacebook Login in JavaScript using Facebook SDK & Graph API<\/title>\n<meta name=\"description\" content=\"In this tutorial, I will guide you on how to add a Facebook login system to your website or app. You might have seen many apps that accept login from\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.edopedia.com\/blog\/facebook-login-in-javascript-using-facebook-sdk-graph-api\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Facebook Login in JavaScript using Facebook SDK & Graph API\" \/>\n<meta property=\"og:description\" content=\"In this tutorial, I will guide you on how to add a Facebook login system to your website or app. You might have seen many apps that accept login from\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.edopedia.com\/blog\/facebook-login-in-javascript-using-facebook-sdk-graph-api\/\" \/>\n<meta property=\"og:site_name\" content=\"Edopedia\" \/>\n<meta property=\"article:author\" content=\"trulyfurqan\" \/>\n<meta property=\"article:published_time\" content=\"2022-09-07T18:41:03+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-09-07T18:41:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.edopedia.com\/blog\/wp-content\/uploads\/2022\/09\/scrnli_9_7_2022_11-09-34-PM.png\" \/>\n<meta name=\"author\" content=\"Furqan\" 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