WORKING!

import React from 'react'
import useForm from 'react-useform'

const initialValues = {
  email: 'olar',
  password: '',
}

function validate(values) {
  const errors = {}
  if (!values.email) errors.email = 'email error'
  return errors
}

function TextField({ input, error, meta, label, inputProps = {} }) {
  return (
    <div className="field">
      <label htmlFor={input.id}>{label}</label>
      <input {...inputProps} {...input} />
      {error && <span>{error}</span>}
    </div>
  )
}

function App() {
  const { fields, onSubmit } = useForm({
    initialValues,
    validate,
    handleSubmit: console.warn,
  })

  return (
    <form onSubmit={onSubmit}>
      <TextField label="Email" {...fields.email} />
      <TextField label="pass" {...fields.password} />
      <button type="submit">submit</button>
    </form>
  )
}