Functioning of Wordpress Contact form to Laravel Method - wordpress

Question

On my website there is a contact form on footer which is working fine.
Site Blog is on wordpress have same contact form.
I don't wan't to create working again for wordpress contact form
<form action="/yocreativ/contact-us" method="post">
<?php
//Generate a random string.
$token = openssl_random_pseudo_bytes(20);
//Convert the binary data into hexadecimal representation.
$token = bin2hex($token);
//Print it out for example purposes.
// echo $token;
?>
<input type="hidden" name="_token" value="<?php echo $token; ?>">
<div class="form-group col-lg-4 wow fadeInDown animated" data-wow-delay="0.2s">
<input type="text" name="name" class="form-control" id="name" placeholder="NAME" required="required">
</div>
<div class="form-group col-lg-4 wow fadeInDown animated" data-wow-delay="0.2s">
<input type="email" name="email" class="form-control" id="email" placeholder="EMAIL" required="required">
</div>
<div class="form-group col-lg-4 wow fadeInDown animated" data-wow-delay="0.2s">
<input type="tel" name="phone" class="form-control" id="subject" placeholder="PHONE" pattern="^\d{3}\d{3}\d{4}$" required="required">
</div>
<div class="form-group col-lg-12 wow fadeInDown animated" data-wow-delay="0.2s">
<textarea name="message" id="message" cols="30" rows="5" placeholder="MESSAGE" required="required"></textarea>
</div>
<div class="row">
<div class="col-lg-12">
<button type="submit" class="btn contact-submit">SEND</button>
</div>
</div>
</form>
Form action="/yocreativ/contact-us" which is the route of my laravel app.
When i submit the form it says.
The page has expired due to inactivity.
Please refresh and try again.

Answer 1

For WordPress wp_nonce_field and wp_verify_nonce field to verify.
https://codex.wordpress.org/Function_Reference/wp_nonce_field
Form field like:
<form method="post">
<?php wp_nonce_field('name_of_my_action','name_of_nonce_field'); ?>
</form>
In action file
<?php
if ( empty($_POST) || !wp_verify_nonce($_POST['name_of_nonce_field'],'name_of_my_action') )
{
print 'Sorry, your nonce did not verify.';
exit;
}
else
{
// process form data
}