ApiPlatform\Core\Bridge\Symfony\Routing\IriConverter::getIriFromResourceClass PHP Method

    public function getIriFromResourceClass(string $resourceClass, int $referenceType = UrlGeneratorInterface::ABS_PATH) : string
    {
        try {
            return $this->router->generate($this->routeNameResolver->getRouteName($resourceClass, true), [], $referenceType);
        } catch (RoutingExceptionInterface $e) {
            throw new InvalidArgumentException(sprintf('Unable to generate an IRI for "%s".', $resourceClass), $e->getCode(), $e);
        }
    }