onMount async validation

[ruudandriessen]

We currently have async validators for both onChange and onBlur, however, none are available onMount. In our use case, we have a form where we pre-fill a name, however, we validate this is unique by sending an async request to the server.

We'd like to have this validated onMount, such that conflicts are shown immediately to the user - however, it seems we only have a sync onMount validation method. Is there any reason we don't have a onMountAsync?

[eckmLJE]

We also require this. I suppose the workaround for now would be to fire off and await your async validation call (outside of react form) ahead of mounting the form, then fold that result synchronously into the onMount validator when you mount useForm.