How to have async custom validators?

[stefdelec]

How to have async custom validators? From your example :

  myValidators = {
    "/passwordCheck": (value, property, form) => {
      const passwordProperty = formProperty.findRoot().getProperty('password')
      if (passwordProperty.value !== undefined && property.valid && value !== passwordProperty.value) {
        return Promise.resolve({ "passwordCheck": { "expectedValue": "same as 'password'" } })
      }
      return Promise.resolve(null);
    }