Server side validation support for react json form

[Ibirendra7298]

Prerequisites

• I have read the documentation;
• In the case of a bug report, I understand that providing a SSCCE example is tremendously useful to the maintainers.
• Ideally, I'm providing a sample JSFiddle or a shared playground link demonstrating the issue.

Description

I created a react json form and want to validate some form data on the server side through api call

Steps to Reproduce

1. Created react json form.
2. For client side validation, I created validate function and validated some data on client side. But I want some data to validated through API.
3. I created API and call that API in the validate function. But Api is not called and showing error that undefined function call.
4. I would like to know that Is there any way to validate form data through API Calling and show the validation error in the form based on the response.

[heath-freenome]

Fixed in the v5 beta.9