Yii Swagger intergration package was updated to version 1.2.0. In this version we have added an ability to configure OpenApi\Annotations\OpenAPI generation via Yiisoft\Swagger\Service\SwaggerService in config/params.php:

'yiisoft/yii-swagger' => [
    // Default values are specified.
    'open-api-options' => [
        'aliases' => OpenApi\Generator::DEFAULT_ALIASES,
        'namespaces' => OpenApi\Generator::DEFAULT_NAMESPACES,
        'analyser' => null,
        'analysis' => null,
        'processors' => null,
        'logger' => null,
        'validate' => true,
        'version' => OpenApi\Annotations\OpenApi::DEFAULT_VERSION,
    ],
],
//...

Yii Swagger intergration package was updated to version 1.1.0. In this version an ability to configure Yii\Swagger\Middleware\SwaggerJson via config/params.php was added:

//...
'yiisoft/yii-swagger' => [
    'annotation-paths' => [
        '@src/Controller' // Directory where annotations are used
    ],
    'cacheTTL' => 60 // Enables caching and sets TTL, "null" value means infinite cache TTL.
]
//...