onSubmit={this.props.handleSubmit}
onClick={this.props.handleSubmit(mySubmit)}

<SubmitValidationForm onSubmit={showResults} />
<Values form="submitValidation" />

import { SubmissionError } from 'redux-form';


const sleep = ms => new Promise(resolve => setTimeout(resolve, ms));

function submit(values) {
  return sleep(1000).then(() => { // simulate server latency
    if (!['john', 'paul', 'george', 'ringo'].includes(values.username)) {
      throw new SubmissionError({
        username: 'User does not exist',
        _error: 'Login failed!',
      });
    } else if (values.password !== 'redux-form') {
      throw new SubmissionError({
        password: 'Wrong password',
        _error: 'Login failed!',
      });
    } else {
      window.alert(`You submitted:\n\n${JSON.stringify(values, null, 2)}`);
    }
  });
}

export default submit;

import React from 'react';


const renderField = ({ input, label, type, meta: { touched, error } }) => (
  <div>
    <label>{label}</label>
    <div>
      <input {...input} placeholder={label} type={type} />
      {touched && error && <span>{error}</span>}
    </div>
  </div>
);

import React from 'react';
import { Field, reduxForm } from 'redux-form';
import submit from './submit';


const SubmitValidationForm = props => {
  const { error, handleSubmit, pristine, reset, submitting } = props;
  return (
    <form onSubmit={handleSubmit(submit)}>
      <Field
        name="username"
        type="text"
        component={renderField}
        label="Username"
      />
      <Field
        name="password"
        type="password"
        component={renderField}
        label="Password"
      />
      {error && <strong>{error}</strong>}
      <div>
        <button type="submit" disabled={submitting}>Log In</button>
        <button type="button" disabled={pristine || submitting} onClick={reset}>
          Clear Values
        </button>
      </div>
    </form>
  );
};

export default reduxForm({
  form: 'submitValidation', // a unique identifier for this form
})(SubmitValidationForm);