Symfony 3 app customizing JSON output - php

Question

In my Symfony 3 web app I'm serializing some DB rows into Json as follows:
$doc = $this->get ( 'doctrine' );
$repo = $doc->getRepository ( 'AppBundle:Customer' );
$result = $repo->createQueryBuilder ( 'c' )->setMaxResults(25)->getQuery ()->getResult ();
$encoder = new JsonEncoder ();
$normalizer = new GetSetMethodNormalizer ();
$serializer = new Serializer ( array (
new \AppBundle\DateTimeNormalizer(), $normalizer
), array (
$encoder
) );
$json = $serializer->serialize ( $result, 'json' );
This outputs the desired data, e.g:
{companyname:"Microsoft"}
In order to (at least initially) maintain compatibility with a legacy system, I'd like all the Json names to be in uppercase, e.g.
{COMPANYNAME:"Microsoft"}
Is the best way to tackle this by approaching from:
The Encoder
The Normalizer(s)
The Serializer
Some other way?
Please briefly describe the suggested approach

Answer 1

You can implement your custom NameConverter a class that implements the NameConverterInterface and pass as second argument to the GetSetMethodNormalizer. As Example:
<?php
namespace AppBundle;
use Symfony\Component\Serializer\NameConverter\NameConverterInterface;
class ToUppercaseNameConverter implements NameConverterInterface
{
/**
* Converts a property name to its normalized value.
*
* #param string $propertyName
*
* #return string
*/
public function normalize($propertyName)
{
return strtoupper($propertyName);
}
/**
* Converts a property name to its denormalized value.
*
* #param string $propertyName
*
* #return string
*/
public function denormalize($propertyName)
{
}
}
?>
and use it as follow:
$uppercaseConverter = new ToUppercaseNameConverter();
$normalizer = new GetSetMethodNormalizer (null, $uppercaseConverter);
You can take a look at the doc Converting Property Names when Serializing and Deserializing
Hope this help