There is a problem regarding the authentication process for users logging in to Facebook

I am currently working on an Android Application that involves user login. After the user logs in, I send the access token to the server to retrieve additional information about the user from Facebook. However, I have encountered a problem where Facebook always returns null for any user info. It seems like either the access token is not being accepted or something crucial is missing.

This is how my code looks:

 require_once 'facebook.php';

    $appid = "*****";
    $app_secret= "*********";


    $facebook = new Facebook(array(
    'appId'  => $appid,
    'secret' => $app_secret
    ));

     $facebook->setAccessToken($accessToken); 
     $user_info = $facebook->api("/user"); //returns null

Please note that the access token is received correctly by the server. Does anyone have a solution to this issue? Your help would be greatly appreciated :)

phpfacebookfacebook-graph-api

Answer №1

Have you been utilizing the exact string "/user" as the path in the API call?

If that's the case, it won't function unless your intention is to access a user with the username 'user'.

/me represents the current user and serves as a shortcut. I recommend using that instead.

Answer №2

I have a solution that has been working perfectly for me, you should give it a try!

require_once 'facebook.php';

    $application_id = "*****";
    $secret_key= "*********";


    $facebook_sdk = new Facebook(array(
    'appId'  => $application_id,
    'secret' => $secret_key
    ));

     $facebook_sdk->setAccessToken($accessToken); 
     $user_profile = $facebook_sdk->api("/me");

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