Open Api Generator

Installation

Require using composer:

$ composer require protung/open-api-generator

Usage

Describe each endpoint by its Symfony route name, and list what it accepts and returns. The generator reads the rest from Symfony and JMS Serializer: path parameters from the route, request bodies from forms and payload classes, requirements from validation constraints, and response schemas from the serialization metadata.

use Protung\OpenApiGenerator\GeneratorFactory;
use Protung\OpenApiGenerator\Model\Info\Info;
use Protung\OpenApiGenerator\Model\Path\Input\SymfonyMappedPayloadInput;
use Protung\OpenApiGenerator\Model\Path\Output\ObjectOutput;
use Protung\OpenApiGenerator\Model\Path\Output\SymfonyPayloadValidationProblemOutput;
use Protung\OpenApiGenerator\Model\Response;
use Protung\OpenApiGenerator\Model\Security\Definition;
use Protung\OpenApiGenerator\Model\Security\Reference;
use Protung\OpenApiGenerator\Model\Specification;
use Protung\OpenApiGenerator\Processor\Path\Symfony\SymfonyRoutePath;

$generator = GeneratorFactory::create(
    apiVersion: '1.0.0',
    router: $router,                   // the "router" service
    formFactory: $formFactory,         // the "form.factory" service
    validator: $validator,             // the "validator" service
    metadataFactory: $metadataFactory, // the "jms_serializer.metadata_factory" service
    jmsSerializer: $serializer,        // the "jms_serializer" service
);

$specification = new Specification(
    new Info('Books API'),
    [Definition::bearerAuth('bearer')],
    [
        new SymfonyRoutePath(
            routeName: 'api_book_get',
            tag: 'Books',
            summary: 'Get a book',
            description: null,
            input: [],
            responses: [
                Response::for200(ObjectOutput::forClass(Book::class)),
                Response::for404(),
            ],
            security: Reference::fromString('bearer'),
        ),
        new SymfonyRoutePath(
            routeName: 'api_book_create',
            tag: 'Books',
            summary: 'Create a book',
            description: null,
            input: [SymfonyMappedPayloadInput::forClass(CreateBookRequest::class)],
            responses: [
                Response::for201(ObjectOutput::forClass(Book::class)),
                Response::for422(SymfonyPayloadValidationProblemOutput::forClass(CreateBookRequest::class)),
            ],
            security: Reference::fromString('bearer'),
        ),
    ],
);

$openApi = $generator->generate($specification);

echo json_encode($openApi->getSerializableData(), JSON_PRETTY_PRINT | JSON_THROW_ON_ERROR);

JMS Serializer is optional. Without it, leave out metadataFactory and jmsSerializer: objects are then documented as plain objects, without their properties.

License

This package is released under the MIT license.