resolver example

    private array $dnsMap;

    public function __construct(array &$dnsMap)
    {
        $this->dnsMap = &$dnsMap;
    }

    public function resolve(string $name, int $typeRestriction = null): Promise
    {
        if (!isset($this->dnsMap[$name]) || !\in_array($typeRestriction, [Record::A, null], true)) {
            return Dns\resolver()->resolve($name, $typeRestriction);
        }

        return new Success([new Record($this->dnsMap[$name], Record::A, null)]);
    }

    public function query(string $name, int $type): Promise
    {
        if (!isset($this->dnsMap[$name]) || Record::A !== $type) {
            return Dns\resolver()->query($name, $type);
        }

        

return '';
        }

        return print_r((new ErrorFormatter())->format($error), true);
    }

    private function validateRequestSchema(string $body): ValidationResult
    {
        $requestData = json_decode($body, null, 512, \JSON_THROW_ON_ERROR);
        $validator = new Validator();
        /** @var SchemaResolver $resolver */
        $resolver = $validator->resolver();
        $resolver->registerFile(
            'http://api.example.com/appActionEndpointSchema.json',
            $this->schemaLocation
        );

        return $validator->validate($requestData, 'http://api.example.com/appActionEndpointSchema.json');
    }

    /** * @param array<string, mixed>|null $responseData */