Change the hydrator check

[sagikazarmark]

Proposed:

if ($this->hydrator) {
    return $this->hydrator->hydrate($response, 'class');
}

return $response;

This might put lots of code within the if, but seems logically more correct to me.

[Nyholm]

It is more logical correct and it looks better with this small example. But all the error handling have to go in that if statement. It may be 15 lines of code. I fear it will not be readable.