Custom async props validation

[filipsobol]

Hi,

With Suspense introduced in Vue 3, is it possible to add support for custom async props validation?

One example use case is similar to the one from Vuelidate documentation:

props: {
    propA: {
        validator: async (value) => {
            const response = await fetch(`/api/unique/${value}`);
            return Boolean(await response.json());
        }
    }
}

Another one would be validate method from vee-validate library, which returns a Promise.

[yyx990803]

Anything async is inherently complex implementation-wise and it would be best to isolate it in async setup for all possible cases. I don't see enough benefit to justify async validators when this can be done in userland.