import { useForm } from 'react-hook-form';
import { yupResolver } from '@hookform/resolvers/yup';
import * as yup from 'yup';

const schema = yup
  .object()
  .shape({
    name: yup.string().required(),
    age: yup.number().required(),
  })
  .required();

const App = () => {
  const { register, handleSubmit } = useForm({
    resolver: yupResolver(schema),
  });

  return (
    <form onSubmit={handleSubmit((d) => console.log(d))}>
      <input {...register('name')} />
      <input type="number" {...register('age')} />
      <input type="submit" />
    </form>
  );
};

import { useForm } from 'react-hook-form';
import { superstructResolver } from '@hookform/resolvers/superstruct';
import { object, string, number } from 'superstruct';

const schema = object({
  name: string(),
  age: number(),
});

const App = () => {
  const { register, handleSubmit } = useForm({
    resolver: superstructResolver(schema),
  });

  return (
    <form onSubmit={handleSubmit((d) => console.log(d))}>
      <input {...register('name')} />
      <input type="number" {...register('age', { valueAsNumber: true })} />
      <input type="submit" />
    </form>
  );
};

import { useForm } from 'react-hook-form';
import { joiResolver } from '@hookform/resolvers/joi';
import Joi from 'joi';

const schema = Joi.object({
  name: Joi.string().required(),
  age: Joi.number().required(),
});

const App = () => {
  const { register, handleSubmit } = useForm({
    resolver: joiResolver(schema),
  });

  return (
    <form onSubmit={handleSubmit((d) => console.log(d))}>
      <input {...register('name')} />
      <input type="number" {...register('age')} />
      <input type="submit" />
    </form>
  );
};

import { useForm } from 'react-hook-form';
import { vestResolver } from '@hookform/resolvers/vest';
import { create, test, enforce } from 'vest';

const validationSuite = create((data = {}) => {
  test('username', 'Username is required', () => {
    enforce(data.username).isNotEmpty();
  });

  test('password', 'Password is required', () => {
    enforce(data.password).isNotEmpty();
  });
});

const App = () => {
  const { register, handleSubmit, errors } = useForm({
    resolver: vestResolver(validationSuite),
  });

  return (
    <form onSubmit={handleSubmit((data) => console.log(data))}>
      <input {...register('username')} />
      <input type="password" {...register('password')} />
      <input type="submit" />
    </form>
  );
};

import React from 'react';
import { useForm } from 'react-hook-form';
import { ioTsResolver } from '@hookform/resolvers/io-ts';
import t from 'io-ts';
// you don't have to use io-ts-types, but it's very useful
import tt from 'io-ts-types';

const schema = t.type({
  username: t.string,
  age: tt.NumberFromString,
});

const App = () => {
  const { register, handleSubmit } = useForm({
    resolver: ioTsResolver(schema),
  });

  return (
    <form onSubmit={handleSubmit((d) => console.log(d))}>
      <input {...register('username')} />
      <input type="number" {...register('age')} />
      <input type="submit" />
    </form>
  );
};

export default App;

import { useForm } from 'react-hook-form';
import { nopeResolver } from '@hookform/resolvers/nope';
import Nope from 'nope-validator';

const schema = Nope.object().shape({
  name: Nope.string().required(),
  age: Nope.number().required(),
});

const App = () => {
  const { register, handleSubmit } = useForm({
    resolver: nopeResolver(schema),
  });

  return (
    <form onSubmit={handleSubmit((d) => console.log(d))}>
      <input {...register('name')} />
      <input type="number" {...register('age')} />
      <input type="submit" />
    </form>
  );
};

import { useForm } from 'react-hook-form';
import { typeboxResolver } from '@hookform/resolvers/typebox';
import { Type } from '@sinclair/typebox';

const schema = Type.Object({
  username: Type.String({ minLength: 1 }),
  password: Type.String({ minLength: 1 }),
});

const App = () => {
  const { register, handleSubmit } = useForm({
    resolver: typeboxResolver(schema),
  });

  return (
    <form onSubmit={handleSubmit((d) => console.log(d))}>
      <input {...register('username')} />
      <input type="password" {...register('password')} />
      <input type="submit" />
    </form>
  );
};

import { useForm } from 'react-hook-form';
import { typeboxResolver } from '@hookform/resolvers/typebox';
import { Type } from '@sinclair/typebox';
import { TypeCompiler } from '@sinclair/typebox/compiler';

const schema = Type.Object({
  username: Type.String({ minLength: 1 }),
  password: Type.String({ minLength: 1 }),
});

const typecheck = TypeCompiler.Compile(schema);

const App = () => {
  const { register, handleSubmit } = useForm({
    resolver: typeboxResolver(typecheck),
  });

  return (
    <form onSubmit={handleSubmit((d) => console.log(d))}>
      <input {...register('username')} />
      <input type="password" {...register('password')} />
      <input type="submit" />
    </form>
  );
};

import { useForm } from 'react-hook-form';
import { arktypeResolver } from '@hookform/resolvers/arktype';
import { type } from 'arktype';

const schema = type({
  username: 'string>1',
  password: 'string>1',
});

const App = () => {
  const { register, handleSubmit } = useForm({
    resolver: arktypeResolver(schema),
  });

  return (
    <form onSubmit={handleSubmit((d) => console.log(d))}>
      <input {...register('username')} />
      <input type="password" {...register('password')} />
      <input type="submit" />
    </form>
  );
};

import { useForm } from 'react-hook-form';
import { valibotResolver } from '@hookform/resolvers/valibot';
import * as v from 'valibot';

const schema = v.object({
  username: v.pipe(
    v.string('username is required'),
    v.minLength(3, 'Needs to be at least 3 characters'),
    v.endsWith('cool', 'Needs to end with `cool`'),
  ),
  password: v.string('password is required'),
});

const App = () => {
  const { register, handleSubmit } = useForm({
    resolver: valibotResolver(schema),
  });

  return (
    <form onSubmit={handleSubmit((d) => console.log(d))}>
      <input {...register('username')} />
      <input type="password" {...register('password')} />
      <input type="submit" />
    </form>
  );
};

import { useForm } from 'react-hook-form';
import { typeschemaResolver } from '@hookform/resolvers/typeschema';
import * as z from 'zod';

// Use your favorite validation library
const schema = z.object({
  username: z.string().min(1, { message: 'Required' }),
  password: z.number().min(1, { message: 'Required' }),
});

const App = () => {
  const { register, handleSubmit } = useForm({
    resolver: typeschemaResolver(schema),
  });

  return (
    <form onSubmit={handleSubmit((d) => console.log(d))}>
      <input {...register('username')} />
      <input type="password" {...register('password')} />
      <input type="submit" />
    </form>
  );
};

import React from 'react';
import { useForm } from 'react-hook-form';
import { effectTsResolver } from '@hookform/resolvers/effect-ts';
import { Schema } from 'effect';

const schema = Schema.Struct({
  username: Schema.String.pipe(
    Schema.nonEmpty({ message: () => 'username required' }),
  ),
  password: Schema.String.pipe(
    Schema.nonEmpty({ message: () => 'password required' }),
  ),
});

type FormData = Schema.Schema.Type<typeof schema>;

interface Props {
  onSubmit: (data: FormData) => void;
}

function TestComponent({ onSubmit }: Props) {
  const {
    register,
    handleSubmit,
    formState: { errors },
    // provide generic if TS has issues inferring types
  } = useForm<FormData>({
    resolver: effectTsResolver(schema),
  });

  return (
    <form onSubmit={handleSubmit(onSubmit)}>
      <input {...register('username')} />
      {errors.username && <span role="alert">{errors.username.message}</span>}

      <input {...register('password')} />
      {errors.password && <span role="alert">{errors.password.message}</span>}

      <button type="submit">submit</button>
    </form>
  );
}

import { useForm } from 'react-hook-form';
import { vineResolver } from '@hookform/resolvers/vine';
import vine from '@vinejs/vine';

const schema = vine.compile(
  vine.object({
    username: vine.string().minLength(1),
    password: vine.string().minLength(1),
  }),
);

const App = () => {
  const { register, handleSubmit } = useForm({
    resolver: vineResolver(schema),
  });

  return (
    <form onSubmit={handleSubmit((d) => console.log(d))}>
      <input {...register('username')} />
      {errors.username && <span role="alert">{errors.username.message}</span>}
      <input {...register('password')} />
      {errors.password && <span role="alert">{errors.password.message}</span>}
      <button type="submit">submit</button>
    </form>
  );
};

import { useForm } from 'react-hook-form';
import { fluentValidationResolver } from '@hookform/resolvers/fluentvalidation-ts';
import { Validator } from 'fluentvalidation-ts';

class FormDataValidator extends Validator<FormData> {
  constructor() {
    super();

    this.ruleFor('username')
      .notEmpty()
      .withMessage('username is a required field');
    this.ruleFor('password')
      .notEmpty()
      .withMessage('password is a required field');
  }
}

const App = () => {
  const { register, handleSubmit } = useForm({
    resolver: fluentValidationResolver(new FormDataValidator()),
  });

  return (
    <form onSubmit={handleSubmit((d) => console.log(d))}>
      <input {...register('username')} />
      {errors.username && <span role="alert">{errors.username.message}</span>}
      <input {...register('password')} />
      {errors.password && <span role="alert">{errors.password.message}</span>}
      <button type="submit">submit</button>
    </form>
  );
};