Flarum\Api\Controller\UpdateExtensionController::handle PHP Method

    public function handle(ServerRequestInterface $request)
    {
        $this->assertAdmin($request->getAttribute('actor'));
        $enabled = array_get($request->getParsedBody(), 'enabled');
        $name = array_get($request->getQueryParams(), 'name');
        if ($enabled === true) {
            $this->extensions->enable($name);
        } elseif ($enabled === false) {
            $this->extensions->disable($name);
        }
    }