InputValidator

InputValidator is the function shape used to validate shared-input submissions.

Shape

type InputValidator = (
  value: string,
  submission?: InputSubmission
) => InputValidationResult;

Example

const emailValidator = (value: string) => {
  const isValidEmail = /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(value);
  return isValidEmail || 'Please enter a valid email address.';
};

Use it with createRequestInputButtonDef(...) or directly with useInputFieldStore().

When uploads are enabled for a request-input flow, submission.files lets the validator check whether the user attached any files alongside the text value.