FB API Examples and Code

Submitted by abitowhit on Wed, 02/14/2018 - 23:20

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API Sandbox

Overview
This is an example using some of the Facebook API login calls and graph functionality via JavaScript.
Notice: Only developers of the application will be able to see the examples in this page but I have provided screenshots of what it looks like on this forum post: FB API Example Screenshots. Since you are not a 247Coding developer, they will not appear on the page and you may also get a FB permissions warning message. This is to be expected.

If you will be testing code examples I would highly advise use of the Graph API Explorer under Tools & Support on the developers.facebook.com website. It is an excellant tool for seeing not only the structure of the APIs but has selectable properties, code exporting examples and will help you understand the layout of the APIs and their properties!

2/16/2018: I was able to get data from posts and feeds today. For this to work, you will have had to set up your app on the facebook developers site, assign your App ID to the code where it is noted.. App setup is not included here yet but there are plenty of existing examples on the web for doing so.
The complete code is available in the textbox below.

Here is the html and javascript source code cut and paste:

// 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 {
      // The person is not logged into your app or we are unable to tell.
      document.getElementById('status').innerHTML = 'Please log ' +
        'in to this app.';
    }
  }

// 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      : '1431996180436071',
      cookie     : true,  // enable cookies to allow the server to access 
                          // the session
      xfbml      : true,  // parse social plugins on this page
      version    : 'v2.8' // use graph api version 2.8
    });

// 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 = "https://connect.facebook.net/en_US/sdk.js";
    fjs.parentNode.insertBefore(js, fjs);
  }(document, 'script', 'facebook-jssdk'));

// Next, let's run a few very simple tests of the Graph API after login is
  // successful.  See statusChangeCallback() for when this call is made.

function testAPI() {
 //   console.log('Welcome!  Fetching your information.... ');

//Here we are creating a please wait callback function to control the spinner div..
var finished_rendering = function() {
  console.log("finished rendering plugins");
  var spinner = document.getElementById("spinner");
  spinner.removeAttribute("style");
  spinner.removeChild(spinner.childNodes[0]);
}
//next we subscribe to the rendering status..
FB.Event.subscribe('xfbml.render', finished_rendering);

FB.api('/me?fields=name,picture,email,age_range,gender,verified', function(response) {
     console.log('Logged in as: ' + response.name);
     // document.getElementById('status').innerHTML ='Thanks for logging in, ' + response.name + ' ('+response.email+')!';
     document.getElementById('status').innerHTML += '<div style="width:100%;float:left"><img src="' + response.picture.data.url + '" class="_PR" style="background-color:white;float:left"> ' + 
    response.name + ' (' +response.email+ ')<br>Range:' + response.age_range.min + '-'+response.age_range.max + 
'<br>Gender: ' + response.gender + '<br> Verified: '+ response.verified + '</div>';
    });//endapi

//Here we will try to see what permissions are used and what their status is..
FB.api('/me/permissions','get',function(response)
  {
     if (response && !response.error) {
        var perms='<b>App Permissions:</b>';
            for (var i=0; i<response.data.length; i++){
               perms +=(response.data[i].permission +'=' +response.data[i].status + '\n');
             }//end loop
        perms+='';
document.getElementById('status').innerHTML += perms;
    }
    else
    {
       document.getElementById('status').innerHTML += 'Could not get permissions<br>';
  }
});//end api call
/////////////////////////////////////////// try posts //////////////////////////////////////////////////////
FB.api('/me', 'GET',  {"fields":"posts.limit(5){created_time,description,message,name,picture}"},
  function(response) {
var postStr='<b><h1>My Posts</h1></b><br>';
//loop throught the posts///
for (var j=0; j<response.posts.data.length; j++){
    postStr+='<div class="_PR" style="width:100%;float:left;font-size:x-small;background-color:white;color:#888888">'; //new element div
     if (response.posts.data[j].picture)
     {
      postStr +='<img src="'+response.posts.data[j].picture+'" style="height:100px;width:100px;float:left" class="_PR">';
     }
                     //Note: split created_time to only return the data stamp.. not time
      postStr +=response.posts.data[j].created_time.split("T")[0] + '<br>' + response.posts.data[j].message;
     postStr +='</div>'; //close the div
}//end loop
     document.getElementById('myposts').innerHTML +=postStr;
  }//end response
);//end post api call
/////////////////////////////////////////// try feeds //////////////////////////////////////////////////////
FB.api('/me', 'GET', {"fields":"feed"},
  function(response) {
//loop throught the feeds///
var feedStr='<b><h1>My Feeds</h1></b><br>';
for (var j=0; j<response.feed.data.length && j < 5; j++){
    feedStr+='<div class="_PR" style="width:100%;float:left;font-size:x-small;background-color:#E7E5DD;color:#888888">';
if (response.feed.data[j].story)//has story..
{
      feedStr +=response.feed.data[j].created_time.split("t")[0] + '<br>' + response.feed.data[j].story + '<br>'+  response.feed.data[j].message + '</div>';
}
else
{
      feedStr +=response.feed.data[j].created_time + '<br>' +   response.feed.data[j].message + '</div>';

}
}//end loop
  document.getElementById('myposts').innerHTML +=feedStr;
  }
);//end API call
 
 } //end method
</script>


<div id="spinner" style=" background-color: #4267b2;border-radius: 5px;color: white;height: 40px;text-align: center; width: 50%;">Loading..</div>

<div id="status" class="_PR" style="background-color:#E3E9C3;float:left;width:94%">
   
  <div style="float:right" class="fb-login-button" data-width="100" data-max-rows="1" data-size="large" data-button-type="continue_with" data-show-faces="false" data-auto-logout-link="true" data-use-continue-as="false" data-scope="public_profile,email,user_birthday"></div>
</div>
<div id="myfriends" style="float:left;width:94%;background-color:#C3DDE9;color:#888888;font-size:x-small"  class="_PR"></div>
<div id="myposts" style="float:left;width:94%;background-color:#C3DDE9;color:#888888;font-size:x-small"  class="_PR"></div>
</div>

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