Invitations

If the tenant is in invite-only mode, validate the invitation before rendering the registration form - not after a rejected register() call. Read whichever the invite link/form carries (a token from an emailed link, or a shareable code) and pass it in:

import { useInvitation } from '@kerne/react';
import { useSearchParams } from 'react-router-dom';

function RegisterPage() {
  const [params] = useSearchParams();
  const { result, isLoading } = useInvitation({ token: params.get('invite') ?? undefined });

  if (isLoading) return <Spinner />;
  if (!result?.valid) return <InvalidInvite />;

  return <RegisterForm invitationToken={params.get('invite')!} />;
}

Or with a code instead of a token:

const { result } = useInvitation({ code: 'JOIN-123' });
// result: { valid: boolean, canUse: boolean } for a code, { valid: boolean, email?: string } for a token

Once validated, pass the same token/code to register() (invitationToken/invitationCode params) to complete signup. See implementing an invite-only SaaS for the full flow, and the server SDK for creating/listing/revoking invitations (admin-only, not exposed here).

Server SDK

Frontend SDKs