Performant, flexible and extensible forms with easy to use validation.
npm install @hookform/resolvers
type Options = {
mode: 'async' | 'sync',
raw?: boolean
}
resolver(schema: object, schemaOptions?: object, resolverOptions: Options)
type | Required | Description | |
---|---|---|---|
schema | object |
β | validation schema |
schemaOptions | object |
validation library schema options | |
resolverOptions | object |
resolver options, async is the default mode |
Dead simple Object schema validation.
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>
);
};
TypeScript-first schema validation with static type inference
β οΈ Example below uses thevalueAsNumber
, which requiresreact-hook-form
v6.12.0 (released Nov 28, 2020) or later.
import { useForm } from 'react-hook-form';
import { zodResolver } from '@hookform/resolvers/zod';
import * as z from 'zod';
const schema = z.object({
name: z.string().min(1, { message: 'Required' }),
age: z.number().min(10),
});
const App = () => {
const {
register,
handleSubmit,
formState: { errors },
} = useForm({
resolver: zodResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('name')} />
{errors.name?.message && <p>{errors.name?.message}</p>}
<input type="number" {...register('age', { valueAsNumber: true })} />
{errors.age?.message && <p>{errors.age?.message}</p>}
<input type="submit" />
</form>
);
};
A simple and composable way to validate data in JavaScript (or TypeScript).
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>
);
};
The most powerful data validation library for JS.
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>
);
};
Vest π¦Ί Declarative Validation Testing.
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>
);
};
Decorator-based property validation for classes.
β οΈ Remember to add these options to yourtsconfig.json
!
"strictPropertyInitialization": false,
"experimentalDecorators": true
import { useForm } from 'react-hook-form';
import { classValidatorResolver } from '@hookform/resolvers/class-validator';
import { Length, Min, IsEmail } from 'class-validator';
class User {
@Length(2, 30)
username: string;
@IsEmail()
email: string;
}
const resolver = classValidatorResolver(User);
const App = () => {
const {
register,
handleSubmit,
formState: { errors },
} = useForm<User>({ resolver });
return (
<form onSubmit={handleSubmit((data) => console.log(data))}>
<input type="text" {...register('username')} />
{errors.username && <span>{errors.username.message}</span>}
<input type="text" {...register('email')} />
{errors.email && <span>{errors.email.message}</span>}
<input type="submit" value="Submit" />
</form>
);
};
Validate your data with powerful decoders.
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;
A small, simple, and fast JS validator
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>
);
};
TypeScript-first schema validation with static type inference
import { useForm } from 'react-hook-form';
import { computedTypesResolver } from '@hookform/resolvers/computed-types';
import Schema, { number, string } from 'computed-types';
const schema = Schema({
username: string.min(1).error('username field is required'),
age: number,
});
const App = () => {
const {
register,
handleSubmit,
formState: { errors },
} = useForm({
resolver: computedTypesResolver(schema),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('name')} />
{errors.name?.message && <p>{errors.name?.message}</p>}
<input type="number" {...register('age', { valueAsNumber: true })} />
{errors.age?.message && <p>{errors.age?.message}</p>}
<input type="submit" />
</form>
);
};
Static and runtime type assertion library with no dependencies
import { useForm } from 'react-hook-form';
import { typanionResolver } from '@hookform/resolvers/typanion';
import * as t from 'typanion';
const isUser = t.isObject({
username: t.applyCascade(t.isString(), [t.hasMinLength(1)]),
age: t.applyCascade(t.isNumber(), [
t.isInteger(),
t.isInInclusiveRange(1, 100),
]),
});
const App = () => {
const {
register,
handleSubmit,
formState: { errors },
} = useForm({
resolver: typanionResolver(isUser),
});
return (
<form onSubmit={handleSubmit((d) => console.log(d))}>
<input {...register('name')} />
{errors.name?.message && <p>{errors.name?.message}</p>}
<input type="number" {...register('age')} />
{errors.age?.message && <p>{errors.age?.message}</p>}
<input type="submit" />
</form>
);
};
The fastest JSON validator for Node.js and browser
import { useForm } from 'react-hook-form';
import { ajvResolver } from '@hookform/resolvers/ajv';
// must use `minLength: 1` to implement required field
const schema = {
type: 'object',
properties: {
username: {
type: 'string',
minLength: 1,
errorMessage: { minLength: 'username field is required' },
},
password: {
type: 'string',
minLength: 1,
errorMessage: { minLength: 'password field is required' },
},
},
required: ['username', 'password'],
additionalProperties: false,
};
const App = () => {
const {
register,
handleSubmit,
formState: { errors },
} = useForm({
resolver: ajvResolver(schema),
});
return (
<form onSubmit={handleSubmit((data) => console.log(data))}>
<input {...register('username')} />
{errors.username && <span>{errors.username.message}</span>}
<input {...register('password')} />
{errors.password && <span>{errors.password.message}</span>}
<button type="submit">submit</button>
</form>
);
};
JSON Schema Type Builder with Static Type Resolution for TypeScript
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>
);
};
TypeScript's 1:1 validator, optimized from editor to runtime
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>
);
};
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