vdbelt / oauth2-revolut

Revolut Provider for OAuth 2.0 Client

This package provides Revolut OAuth 2.0 support for the PHP League's OAuth 2.0 Client.

Installation

To install, use composer:

composer require vdbelt/oauth2-revolut

Usage

Usage is the same as The League's OAuth client, using \League\OAuth2\Client\Provider\Revolut as the provider.

Generating Key Pairs

Start with generating a key pair as described in the Revolut API docs:

openssl genrsa -out privatekey.pem 1024
openssl req -new -x509 -key privatekey.pem -out publickey.cer -days 1825

Upload the public key through the Revolut for Business API Settings page, and store the private key somewhere safe.

Authorization Code Flow

$provider = new League\OAuth2\Client\Provider\Revolut([
    'clientId'          => '{revolut-client-id}',
    'privateKey'        => 'file://{revolut-private-key-path}',
    'redirectUri'       => 'https://example.com/callback-url' // equal to redirect URI provided to Revolut
    'isSandbox'         => false
]);

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']
    ]);

    // Store the token somewhere safe. Note that the token is valid for 40 minutes.
    // After 40 minutes, you can request a new access token based on the refresh token (valid for 90 days):
    if($token->hasExpired()) {
        $newToken = $provider->getAccessToken('refresh_token', [
            'refresh_token' => $token->getRefreshToken()
        ]);
    }

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

Testing

$ ./vendor/bin/phpunit

Contributing

Please see CONTRIBUTING for details.

Credits

• Martin van de Belt
• All Contributors

License

The MIT License (MIT). Please see License File for more information.