ltiregend.php

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<?php

declare(strict_types=1);

chdir("../../");

require_once("Services/Init/classes/class.ilInitialisation.php");

ilInitialisation::initILIAS();
$clientId = (ilSession::has('lti_dynamic_registration_client_id')) ? (string) ilSession::get('lti_dynamic_registration_client_id') : '';
$response = [];
if (empty($clientId)) {
    $response["providerId"] = 0;
    $response["error"] = "could not find created client_id";
} else {
    try {
        $response["providerId"] = ilLTIConsumeProvider::getProviderIdFromClientId($clientId);
        $response["error"] = "";
    } catch (\ILIAS\Filesystem\Exception\IOException $e) {
        $response["providerId"] = 0;
        $response["error"] = $e->getMessage();
    }
}
header('Content-Type: application/json; charset=utf-8');
echo json_encode($response, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);