php-symfonyHow to use OpenAPI with PHP Symfony?

OpenAPI (formerly known as Swagger) is a popular framework for creating and documenting RESTful APIs. It can be used with PHP Symfony to create a powerful and easy-to-use API.

To use OpenAPI with PHP Symfony, you need to install the NelmioApiDocBundle package.

Once installed, you can create a controller with the following code:

<?php

namespace App\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Nelmio\ApiDocBundle\Annotation\Model;
use Nelmio\ApiDocBundle\Annotation\Security;
use Swagger\Annotations as SWG;

class MyController extends AbstractController
{
    /**
     * @SWG\Response(
     *     response=200,
     *     description="Returns a list of users",
     *     @SWG\Schema(
     *         type="array",
     *         @SWG\Items(ref=@Model(type=User::class))
     *     )
     * )
     * @SWG\Tag(name="users")
     * @Security(name="Bearer")
     */
    public function listUsers()
    {
        // ...
    }
}

This code will generate an OpenAPI document that describes the listUsers endpoint. The @SWG\Response annotation is used to define the response of the endpoint, the @SWG\Tag annotation is used to group related endpoints, and the @Security annotation is used to define the authentication method.

The generated OpenAPI document can then be used to generate client libraries for various languages, such as JavaScript, Python, and Java.

Helpful links

• NelmioApiDocBundle
• OpenAPI Specification

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