Submit form in React.js using Ajax

Question

Creating my first application in React.js and want to submit contact form to a email with Ajax. I\'ve used this solution as guideline: https://liusashmily.wordpress.com/author/l

Answer 1

As React is UI component framework you can use third party library for ajax post. https://www.npmjs.com/package/react-axios

Here is an example of how to use this. https://handyopinion.com/reactjs-post-form-with-ajax/

Answer 2

I found the solution. Here is my Contact component:

import React, { Component } from 'react';

// Contact component render contact form
class Contact extends React.Component {
  constructor(props){
    super(props);
    this.state = {
      contactEmail: '',
      contactMessage: ''
    };

    this._handleSubmit = this._handleSubmit.bind(this);
    this._handleChange = this._handleChange.bind(this);
    this._handleChangeMsg = this._handleChangeMsg.bind(this);
  }

  // Change state of input field so text is updated while typing
  _handleChange(e) {
    this.setState({
      contactEmail: e.target.value,
    });
  }
  // Change state of input field so text is updated while typing
  _handleChangeMsg(e) {
    this.setState({
      contactMessage: e.target.value
    });
  }

  _handleSubmit(e) {
    e.preventDefault();
    this.setState({
      contactEmail: '',
      contactMessage: ''
    });

    $.ajax({
      url: process.env.NODE_ENV !== "production" ? '/getMail' : "http://www.fransbernhard.se/magden/php/mailer.php",
      type: 'POST',
      data: {
        'form_email': this.state.contactEmail,
        'form_msg': this.state.contactMessage
      },
      cache: false,
      success: function(data) {
        // Success..
        this.setState({
          contactEmail: 'success',
          contactMessage: '<h1>Kontakt skickad!</h1><p>Återkommer så fort som möjligt.</p>'
        });
        $('#formContact').slideUp();
        $('#formContact').after(this.state.contactMessage);
        console.log('success', data);
      }.bind(this),
      // Fail..
      error: function(xhr, status, err) {
        console.log(xhr, status);
        console.log(err);
        this.setState({
          contactEmail: 'danger',
          contactMessage: '<h1>Sorry det blev fel</h1><p>Försök gärna igen, eller mejla mig direkt på magdamargaretha@gmail.com</p>'
        });
        console.log(this.state.contactEmail + this.state.contactMessage + 'fail');
      }.bind(this)
    });
  }

  render() {
    return (
      <div className="contact" id="contact">
        <div className="filter">
          <form className="form" onSubmit={this._handleSubmit} id="formContact">
            <label>Email</label>
            <input id="formEmail" type="email" name="formEmail" value={this.state.contactEmail} onChange={this._handleChange} required/>
            <label>Meddelande</label>
            <textarea id="formMsg" name="formMsg" rows="8" cols="40" value={this.state.contactMessage} onChange={this._handleChangeMsg} required></textarea>
            <input type="submit" value="Submit" className="btn--cta" id="btn-submit" />
          </form>
        </div>
      </div>
    )
  }
}

export default Contact;

mailer.php file:

<?php

  // trim() function strips any white space from beginning and end of the string
  $email = filter_var(trim($_POST["form_email"]), FILTER_SANITIZE_EMAIL);
  //  strip_tags() function strips all HTML and PHP tags from a variable.
  $message = strip_tags($_POST["form_msg"]);

  // Check that data was sent to the mailer.
  if ( empty($message) OR !filter_var($email, FILTER_VALIDATE_EMAIL)) {
    // Set a 400 (bad request) response code and exit.
    http_response_code(400);
    echo "Oops! There was a problem with your submission. Please complete the form and try again.";
    exit;
  }

  // Set the recipient email address.
  $recipient = "mimilundberg@icloud.com";
  // Set the email subject.
  $subject = "Message to magdalundberg.se from: $email";

  // Build the email content.
  $body .= "Email: $email\n\n";
  $body .= "Message: \n$message\n";

  // success
  $success = mail($recipient, $subject, $body, "From:" . $email);

  // Send the email.
  if ($success) {
    // Set a 200 (okay) response code.
    http_response_code(200);
    echo "Thank You! Your message has been sent.";
  } else {
    // Set a 500 (internal server error) response code.
    http_response_code(500);
    echo "Oops! Something went wrong and we couldn’t send your message.";
  }

?>