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

type Inputs = {
  name: string
  age: string
}

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

const App = () => {
  const { register, handleSubmit } = useForm<Inputs>({
    resolver: yupResolver(schema), // yup, joi and even your own.
  })

  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 { zodResolver } from "@hookform/resolvers/zod"
import * as z from "zod"

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

type Schema = z.infer<typeof schema>

const App = () => {
  const { register, handleSubmit } = useForm<Schema>({
    resolver: zodResolver(schema),
  })

  const onSubmit = (data: Schema) => {
    console.log(data)
  }

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

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

interface IFormInput {
  name: string;
  age: number;
}

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

const App = () => {
  const { register, handleSubmit, formState: { errors } } = useForm<IFormInput>({
    resolver: joiResolver(schema)
  });
  const onSubmit = (data: IFormInput) => {
    console.log(data);
  };

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

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 && <p>{errors.username.message}</p>}
      <input {...register("password")} />
      {errors.password && <p>{errors.password.message}</p>}
      <button type="submit">submit</button>
    </form>
  )
}

import * as React from "react"
import { useForm } from "react-hook-form"
import { vestResolver } from "@hookform/resolvers/vest"
import vest, { test, enforce } from "vest"

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

  test("username", "Must be longer than 3 chars", () => {
    enforce(data.username).longerThan(3)
  })

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

  test("password", "Password must be at least 5 chars", () => {
    enforce(data.password).longerThanOrEquals(5)
  })

  test("password", "Password must contain a digit", () => {
    enforce(data.password).matches(/[0-9]/)
  })

  test("password", "Password must contain a symbol", () => {
    enforce(data.password).matches(/[^A-Za-z0-9]/)
  })
})

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

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

import * as React from "react"
import { useForm } from "react-hook-form"
import * as Joi from "joi"

interface IFormInputs {
  username: string
}

const validationSchema = Joi.object({
  username: Joi.string().alphanum().min(3).max(30).required(),
})

const App = () => {
  const {
    register,
    handleSubmit,
    formState: { errors },
  } = useForm<IFormInputs>({
    resolver: async (data) => {
      const { error, value: values } = validationSchema.validate(data, {
        abortEarly: false,
      })

      return {
        values: error ? {} : values,
        errors: error
          ? error.details.reduce((previous, currentError) => {
              return {
                ...previous,
                [currentError.path[0]]: currentError,
              }
            }, {})
          : {},
      }
    },
  })

  const onSubmit = (data: IFormInputs) => console.log(data)

  return (
    <div className="App">
      <h1>resolver</h1>

      <form onSubmit={handleSubmit(onSubmit)}>
        <label>Username</label>
        <input {...register("username")} />
        {errors.username && <p>errors.username.message</p>}
        <input type="submit" />
      </form>
    </div>
  )
}