SDK to generate Http JSON-RPC server documentation for OpenAPI v3.0.0
See yoanm/symfony-jsonrpc-http-server-openapi-doc for automatic dependency injection.
Create the normalizer :
use Yoanm\JsonRpcHttpServerOpenAPIDoc\App\Normalizer\Component\ErrorDocNormalizer;
use Yoanm\JsonRpcHttpServerOpenAPIDoc\App\Normalizer\Component\ExternalSchemaListDocNormalizer;
use Yoanm\JsonRpcHttpServerOpenAPIDoc\App\Normalizer\Component\OperationDocNormalizer;
use Yoanm\JsonRpcHttpServerOpenAPIDoc\App\Normalizer\Component\RequestDocNormalizer;
use Yoanm\JsonRpcHttpServerOpenAPIDoc\App\Normalizer\Component\ResponseDocNormalizer;
use Yoanm\JsonRpcHttpServerOpenAPIDoc\App\Normalizer\Component\SchemaTypeNormalizer;
use Yoanm\JsonRpcHttpServerOpenAPIDoc\App\Normalizer\Component\ShapeNormalizer;
use Yoanm\JsonRpcHttpServerOpenAPIDoc\App\Normalizer\Component\TypeDocNormalizer;
use Yoanm\JsonRpcHttpServerOpenAPIDoc\App\Resolver\DefinitionRefResolver;
use Yoanm\JsonRpcHttpServerOpenAPIDoc\Infra\Normalizer\DocNormalizer;
$shapeNormalizer = new ShapeNormalizer();
$definitionRefResolver = new DefinitionRefResolver();
$typeDocNormalizer = new TypeDocNormalizer(
    new SchemaTypeNormalizer()
);
$normalizer = new DocNormalizer(
    new ExternalSchemaListDocNormalizer(
        $definitionRefResolver,
        $typeDocNormalizer,
        new ErrorDocNormalizer(
            $typeDocNormalizer,
            $shapeNormalizer
        )
    ),
    new OperationDocNormalizer(
        $definitionRefResolver,
        new RequestDocNormalizer(
            $definitionRefResolver,
            $shapeNormalizer
        ),
        new ResponseDocNormalizer(
            $definitionRefResolver,
            $shapeNormalizer
        )
    )
);Then you can convert ServerDoc or HttpServerDoc by doing :
use Yoanm\JsonRpcServerDoc\Domain\Model\ServerDoc;
$serverDoc = new ServerDoc();
// Configure server doc
...
// Add methods documentation
...
// Then normalize
/** @var array $openAPIDoc */
$openAPIDoc = $normalizer->normalize($serverDoc);