PHP code example of blacklotus1998 / laravel-facebook-sdk

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

blacklotus1998 / laravel-facebook-sdk example snippets

'providers' => [
    SammyK\LaravelFacebookSdk\LaravelFacebookSdkServiceProvider::class,
    ];

$app->register(SammyK\LaravelFacebookSdk\LaravelFacebookSdkServiceProvider::class);

'aliases' => [
    'Facebook' => SammyK\LaravelFacebookSdk\FacebookFacade::class,
    ];

// Directly from the IoC
$fb = App::make('SammyK\LaravelFacebookSdk\LaravelFacebookSdk');
// Or in PHP >= 5.5
$fb = app(SammyK\LaravelFacebookSdk\LaravelFacebookSdk::class);

// From a constructor
class FooClass {
    public function __construct(SammyK\LaravelFacebookSdk\LaravelFacebookSdk $fb) {
       // . . .
    }
}

// From a method
class BarClass {
    public function barMethod(SammyK\LaravelFacebookSdk\LaravelFacebookSdk $fb) {
       // . . .
    }
}

// Or even a closure
Route::get('/facebook/login', function(SammyK\LaravelFacebookSdk\LaravelFacebookSdk $fb) {
    // . . .
});

try {
  $response = $fb->get('/me?fields=id,name,email', 'user-access-token');
} catch(\Facebook\Exceptions\FacebookSDKException $e) {
  dd($e->getMessage());
}

$userNode = $response->getGraphUser();
printf('Hello, %s!', $userNode->getName());

Route::get('/facebook/login', function(SammyK\LaravelFacebookSdk\LaravelFacebookSdk $fb) {
    $login_link = $fb
            ->getRedirectLoginHelper()
            ->getLoginUrl('https://exmaple.com/facebook/callback', ['email', 'user_events']);
    
    echo '<a href="' . $login_link . '">Log in with Facebook</a>';
});

$login_link = $fb->getLoginUrl();

$login_link = $fb->getLoginUrl(['email', 'user_status'], 'https://exmaple.com/facebook/callback');
// Or, if you want to default to the callback URL set in the config
$login_link = $fb->getLoginUrl(['email', 'user_status']);

Route::get('/facebook/callback', function(SammyK\LaravelFacebookSdk\LaravelFacebookSdk $fb) {
    try {
        $token = $fb
            ->getRedirectLoginHelper()
            ->getAccessToken();
    } catch (Facebook\Exceptions\FacebookSDKException $e) {
        // Failed to obtain access token
        dd($e->getMessage());
    }
});

Route::get('/facebook/callback', function(SammyK\LaravelFacebookSdk\LaravelFacebookSdk $fb) {
    try {
        $token = $fb->getAccessTokenFromRedirect();
    } catch (Facebook\Exceptions\FacebookSDKException $e) {
        // Failed to obtain access token
        dd($e->getMessage());
    }
    
    // $token will be null if the user denied the request
    if (! $token) {
        // User denied the request
    }
});

Route::get('/facebook/javascript', function(SammyK\LaravelFacebookSdk\LaravelFacebookSdk $fb) {
    try {
        $token = $fb->getJavaScriptHelper()->getAccessToken();
    } catch (Facebook\Exceptions\FacebookSDKException $e) {
        // Failed to obtain access token
        dd($e->getMessage());
    }

    // $token will be null if no cookie was set or no OAuth data
    // was found in the cookie's signed request data
    if (! $token) {
        // User hasn't logged in using the JS SDK yet
    }
});

Route::match(['get', 'post'], '/facebook/canvas', function(SammyK\LaravelFacebookSdk\LaravelFacebookSdk $fb) {
    try {
        $token = $fb->getCanvasHelper()->getAccessToken();
    } catch (Facebook\Exceptions\FacebookSDKException $e) {
        // Failed to obtain access token
        dd($e->getMessage());
    }

    // $token will be null if the user hasn't authenticated your app yet
    if (! $token) {
        // . . .
    }
});

Route::match(['get', 'post'], '/facebook/page-tab', function(SammyK\LaravelFacebookSdk\LaravelFacebookSdk $fb) {
    try {
        $token = $fb->getPageTabHelper()->getAccessToken();
    } catch (Facebook\Exceptions\FacebookSDKException $e) {
        // Failed to obtain access token
        dd($e->getMessage());
    }

    // $token will be null if the user hasn't authenticated your app yet
    if (! $token) {
        // . . .
    }
});

$rerequest_link = $fb->getReRequestUrl(['email'], 'https://exmaple.com/facebook/login');
// Or, if you want to default to the callback URL set in the config
$rerequest_link = $fb->getReRequestUrl(['email']);

$re_authentication_link = $fb->getReAuthenticationUrl(['email'], 'https://exmaple.com/facebook/login');
// Or, if you want to default to the callback URL set in the config
$re_authentication_link = $fb->getReAuthenticationUrl(['email']);
// Or without permissions
$re_authentication_link = $fb->getReAuthenticationUrl();

Session::put('facebook_access_token', (string) $token);

$token = Session::get('facebook_access_token');
$fb->setDefaultAccessToken($token);

use SammyK\LaravelFacebookSdk\SyncableGraphNodeTrait;

class Event extends Eloquent {
    use SyncableGraphNodeTrait;
}

$response = $fb->get('/some-event-id?fields=id,name');
$eventNode = $response->getGraphEvent();

// A method called createOrUpdateGraphNode() on the `Event` eloquent model
// will create the event if it does not exist or it will update the existing
// record based on the ID from Facebook.
$event = Event::createOrUpdateGraphNode($eventNode);

use SammyK\LaravelFacebookSdk\SyncableGraphNodeTrait;

class User extends Eloquent implements UserInterface
{
    use SyncableGraphNodeTrait;
    
    protected static $graph_node_field_aliases = [
        'id' => 'facebook_user_id',
        'name' => 'full_name',
        'graph_node_field_name' => 'database_column_name',
    ];
}

use SammyK\LaravelFacebookSdk\SyncableGraphNodeTrait;

class Event extends Eloquent
{
    use SyncableGraphNodeTrait;
    
    protected static $graph_node_fillable_fields = ['id', 'name', 'start_time'];
}

Schema::create('events', function(Blueprint $table)
{
    $table->increments('id');
    $table->bigInteger('facebook_id')->nullable()->unsigned()->index();
    $table->string('name')->nullable();
    $table->string('city')->nullable();
    $table->string('state')->nullable();
    $table->string('country')->nullable();
});

use SammyK\LaravelFacebookSdk\SyncableGraphNodeTrait;

class Event extends Eloquent
{
    use SyncableGraphNodeTrait;
    
    protected static $graph_node_field_aliases = [
        'id' => 'facebook_id',
        'place.location.city' => 'city',
        'place.location.state' => 'state',
        'place.location.country' => 'country',
    ];
}

use SammyK\LaravelFacebookSdk\SyncableGraphNodeTrait;

class Event extends Eloquent
{
    use SyncableGraphNodeTrait;
    
    protected static $graph_node_date_time_to_string_format = 'c'; # ISO 8601 date
}

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class AddFacebookColumnsToUsersTable extends Migration
{
    public function up()
    {
        Schema::table('users', function(Blueprint $table)
        {
            // If the primary id in your you user table is different than the Facebook id
            // Make sure it's an unsigned() bigInteger()
            $table->bigInteger('facebook_user_id')->unsigned()->index();
            // Normally you won't need to store the access token in the database
            $table->string('access_token')->nullable();
        });
    }

    public function down()
    {
        Schema::table('users', function(Blueprint $table)
        {
            $table->dropColumn(
                'facebook_user_id',
                'access_token'
            );
        });
    }
}

# User.php
use SammyK\LaravelFacebookSdk\SyncableGraphNodeTrait;

class User extends Eloquent implements UserInterface {
    use SyncableGraphNodeTrait;

    protected $hidden = ['access_token'];
}

class FacebookController {
    public function getUserInfo(SammyK\LaravelFacebookSdk\LaravelFacebookSdk $fb) {
       try {
           $response = $fb->get('/me?fields=id,name,email');
       } catch (Facebook\Exceptions\FacebookSDKException $e) {
           dd($e->getMessage());
       }
       
       // Convert the response to a `Facebook/GraphNodes/GraphUser` collection
       $facebook_user = $response->getGraphUser();
       
       // Create the user if it does not exist or update the existing entry.
       // This will only work if you've added the SyncableGraphNodeTrait to your User model.
       $user = App\User::createOrUpdateGraphNode($facebook_user);
       
       // Log the user into Laravel
       Auth::login($user);
    }
}

Route::get('/example', function(SammyK\LaravelFacebookSdk\LaravelFacebookSdk $fb) {
    // All the possible configuration options are available here
    $fb2 = $fb->newInstance([
      'app_id' => env('FACEBOOK_APP_ID2'),
      'app_secret' => env('FACEBOOK_APP_SECRET2'),
      'default_graph_version' => 'v2.10',
      // . . .
    ]);
});

try {
    // Stuffs here
} catch (Facebook\Exceptions\FacebookResponseException $e) {
    $graphError = $e->getPrevious();
    echo 'Graph API Error: ' . $e->getMessage();
    echo ', Graph error code: ' . $graphError->getCode();
    exit;
} catch (Facebook\Exceptions\FacebookSDKException $e) {
    echo 'SDK Error: ' . $e->getMessage();
    exit;
}

namespace App\Http\Middleware;

use Illuminate\Foundation\Http\Middleware\VerifyCsrfToken as BaseVerifier;

class VerifyCsrfToken extends BaseVerifier
{
    /**
     * The URIs that should be excluded from CSRF verification.
     *
     * @var array
     */
    protected $except = [
        'facebook/canvas',
        'facebook/page-tab',
        // ... insert all your canvas endpoints here
    ];
}

 namespace App\Http\Middleware;

use Closure;
use Illuminate\Foundation\Http\Middleware\VerifyCsrfToken as BaseVerifier;
use Illuminate\Session\TokenMismatchException;

class VerifyCsrfToken extends BaseVerifier
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     *
     * @throws TokenMismatchException
     */
    public function handle($request, Closure $next)
    {
        if ($this->isReading($request) || $this->excludedRoutes($request) || $this->tokensMatch($request)) {
            return $this->addCookieToResponse($request, $next($request));
        }

        throw new TokenMismatchException;
    }

    /**
     * Ignore CSRF on these routes.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return bool
     */
    private function excludedRoutes($request)
    {
        $routes = [
          'my-app/canvas',
          'my-app/page-tab',
          // ... insert all your canvas endpoints here
        ];

        foreach($routes as $route){
            if ($request->is($route)) {
                return true;
            }
        }

        return false;
    }
}

bash
$ php artisan migrate