@samithahansaka/formless-react-hook-form

React Hook Form adapter for Formless - the universal form adapter for React.

| Bundle Size | Minified | Gzipped | | ----------- | -------- | ------- | | ESM | 27.46 KB | ~7 KB |

This package provides integration with React Hook Form, one of the most popular form libraries for React.

Installation

npm install @samithahansaka/formless-react-hook-form react-hook-form

Note: For most users, we recommend installing @samithahansaka/formless which includes this package and all adapters.

Usage

Option 1: Imperative Adapter (Recommended)

Use rhfAdapter() for form-agnostic components:

import { useUniversalForm } from '@samithahansaka/formless-react';
import { rhfAdapter } from '@samithahansaka/formless-react-hook-form';
import { zodBridge } from '@samithahansaka/formless-zod';

const form = useUniversalForm({
  adapter: rhfAdapter(),
  schema: zodBridge(mySchema),
  defaultValues: { name: '', email: '' },
});

Option 2: Hook-based Adapter

Use useRHFAdapter() when you need access to the native RHF form instance:

import { useUniversalForm } from '@samithahansaka/formless-react';
import { useRHFAdapter } from '@samithahansaka/formless-react-hook-form';
import { zodBridge } from '@samithahansaka/formless-zod';

function MyForm() {
  const { adapter, form: rhfForm } = useRHFAdapter({
    defaultValues: { name: '', email: '' },
    schema: zodBridge(mySchema),
    mode: 'onBlur',
  });

  const form = useUniversalForm({ adapter });

  // Access native RHF features via rhfForm
  console.log(rhfForm.formState.dirtyFields);

  return <form onSubmit={form.handleSubmit(onSubmit)}>{/* ... */}</form>;
}

Adapter Options

rhfAdapter({
  // Debounce async validation (ms)
  asyncDebounceMs: 300,
});

Migration from React Hook Form

// Before (React Hook Form)
import { useForm } from 'react-hook-form';
import { zodResolver } from '@hookform/resolvers/zod';

const { register, handleSubmit, formState } = useForm({
  resolver: zodResolver(schema),
  defaultValues: { name: '' },
});

// After (Formless)
import { useUniversalForm, Field } from '@samithahansaka/formless-react';
import { rhfAdapter } from '@samithahansaka/formless-react-hook-form';
import { zodBridge } from '@samithahansaka/formless-zod';

const form = useUniversalForm({
  adapter: rhfAdapter(),
  schema: zodBridge(schema),
  defaultValues: { name: '' },
});

Why Use This?

• Swap engines easily - Switch to Formik or TanStack Form without rewriting components
• Consistent API - Same interface regardless of underlying form library
• Full RHF power - Access native RHF features when needed via hook adapter

Documentation

For full documentation, visit the main repository.

License

MIT