Can I reset the symfony form validation scheme in JSON?

Question

I am considering creating some kind of evidence-based tool that could capture metadata from a Symfony2 instance FormTypeto reset the validation scheme as JSON, something like the following:

[
    {
        name: 'someFieldName',
        value: '',
        email: true
    },
    {
        name: 'yetAnotherFieldName',
        value: 'I have a default value',
        required: true
    }
]

The goal is to use it in front-end JS code (let’s say, React) in order to be able to set the same verification restrictions as much as possible ( requiredetc.).

However, Symfony is well-structured, and its Form component knows nothing about validation. Considering only the nominal case of a simple form for a start, how would this be done? How to compare the form with the scanned objects / objects that it refers to?

Answer 1

symfony, :

$this->get('validator')->getMetadataFor(Foo::class);

ClassMetadata. , members properties, constraints .

- JSON.