OpenAPI Swagger for Yii Framework

2.0.0 2023-02-16 14:48 UTC

This package is auto-updated.

Last update: 2023-11-18 08:17:29 UTC



Yii Swagger

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OpenAPI Swagger for Yii Framework.


  • PHP 8.0 or higher.


The package could be installed with composer:

composer require yiisoft/yii-swagger


1. Add route configuration to config/routes.php

use Yiisoft\DataResponse\Middleware\FormatDataResponseAsHtml;
use Yiisoft\DataResponse\Middleware\FormatDataResponseAsJson;
use Yiisoft\Router\Group;
use Yiisoft\Router\Route;
use Yiisoft\Swagger\Middleware\SwaggerUi;
use Yiisoft\Swagger\Action\SwaggerJson;

// Swagger routes
Group::create('/swagger', [
        ->action(fn (SwaggerUi $swaggerUi) => $swaggerUi->withJsonUrl('/swagger/json-url')),

2. Add annotations to default API controller

use OpenApi\Annotations as OA;

 * @OA\Info(title="My first API", version="1.0")
class DefaultController {
    // ...

and before actions

 * @OA\Get(
 *     path="/api/endpoint",
 *     @OA\Response(response="200", description="Get default action")
 * )
public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    // ...

See Swagger-PHP documentation for details on how to annotate your code.

3. Configure SwaggerJson action

For annotations to be registered you need to configure SwaggerJson.

You can use the parameters in config/params.php to configure SwaggerJson:

'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.

4. (Optional) Add config for aliases and asset manager

use Yiisoft\Definitions\Reference;
use Yiisoft\Assets\AssetManager;

return [
    'yiisoft/aliases' => [
        'aliases' => [
            '@views' => '@root/views',
            '@assets' => '@public/assets',
            '@assetsUrl' => '@baseUrl/assets',
    'yiisoft/view' => [
        'basePath' => '@views',
        'defaultParameters' => [
            'assetManager' => Reference::to(AssetManager::class),

5. (Optional) Configure SwaggerUi action

You can use the parameters in config/params.php to configure SwaggerUi.

For example, you can enable persisting authorization by setting the persistAuthorization parameter to true.

'yiisoft/yii-swagger' => [
    'ui-params' => [
        'persistAuthorization' => true,

You can find a complete list of parameters by following the link.

6. (Optional) Configure SwaggerService

You can specify options for generation an OpenApi\Annotations\OpenApi instance in config/params.php to configure SwaggerService:

'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,

For more information about generation an OpenApi\Annotations\OpenApi instance, see the documentation of the zircote/swagger-php package.


Unit testing

The package is tested with PHPUnit. To run tests:


Mutation testing

The package tests are checked with Infection mutation framework with Infection Static Analysis Plugin. To run it:


Static analysis

The code is statically analyzed with Psalm. To run static analysis:



The Yii Swagger is free software. It is released under the terms of the BSD License. Please see LICENSE for more information.

Maintained by Yii Software.

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