PHP code example of league / oauth2-linkedin

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

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

    

league / oauth2-linkedin example snippets

$provider = new League\OAuth2\Client\Provider\LinkedIn([
    'clientId'          => '{linkedin-client-id}',
    'clientSecret'      => '{linkedin-client-secret}',
    'redirectUri'       => 'https://example.com/callback-url',
]);

if (!isset($_GET['code'])) {

    // If we don't have an authorization code then get one
    $authUrl = $provider->getAuthorizationUrl();
    $_SESSION['oauth2state'] = $provider->getState();
    header('Location: '.$authUrl);
    exit;

// Check given state against previously stored one to mitigate CSRF attack
} elseif (empty($_GET['state']) || ($_GET['state'] !== $_SESSION['oauth2state'])) {

    unset($_SESSION['oauth2state']);
    exit('Invalid state');

} else {

    // Try to get an access token (using the authorization code grant)
    $token = $provider->getAccessToken('authorization_code', [
        'code' => $_GET['code']
    ]);

    // Optional: Now you have a token you can look up a users profile data
    try {

        // We got an access token, let's now get the user's details
        $user = $provider->getResourceOwner($token);

        // Use these details to create a new profile
        printf('Hello %s!', $user->getFirstName());

    } catch (Exception $e) {

        // Failed to get user details
        exit('Oh dear...');
    }

    // Use this to interact with an API on the users behalf
    echo $token->getToken();
}

$options = [
    'state' => 'OPTIONAL_CUSTOM_CONFIGURED_STATE',
    'scope' => ['r_liteprofile','r_emailaddress'] // array or string
];

$authorizationUrl = $provider->getAuthorizationUrl($options);

$fields = [
    'id', 'firstName', 'lastName', 'maidenName',
    'headline', 'vanityName', 'birthDate', 'educations'
];

$provider = $provider->withFields($fields);
$member = $provider->getResourceOwner($token);

// or in one line...

$member = $provider->withFields($fields)->getResourceOwner($token);

$firstName = $member->getFirstName();
$birthDate = $member->getAttribute('birthDate');

$member = $provider->getResourceOwner($token);
$email = $member->getEmail();

$emailAddress = $provider->getResourceOwnerEmail($token);

$refreshToken = $token->getRefreshToken();
$refreshTokenExpiration = $token->getRefreshTokenExpires();