isValid can't be initialized to false

[Rayah-Flare]

Hi all,

I have an input form, a Zip Code component with a submit button.
I want to validate the input before submitting it. Therefore, the button must be disabled until the input is valid (i.e. an address is returned by the API and the zip code is valid).

I implemented it with a useEffect() which checks the value of the address.
If the address isn't valid yet (which is the case also from the beginning since we don't have values yet), it calls setError().
Else, it calls clearErrors() and trigger().

However, this is not working. the button is enabled from the beginning and isValid = true even if the formState.erros is not empty.

Any idea how can I fix this?