Grab CF7 submission on the way by and send to MailJet via API

process-cf7-submission.php

<?php

/**
 * The plugin bootstrap file
 *
 * This file is read by WordPress to generate the plugin information in the plugin
 * admin area. This file also includes all of the dependencies used by the plugin,
 * registers the activation and deactivation functions, and defines a function
 * that starts the plugin.
 *
 * @link              https://lucasbalzer.com
 * @since             1.0.0
 * @package           Wp_Loaner_Car
 *
 * @wordpress-plugin
 * Plugin Name:       Loaner Car Checkout
 * Plugin URI:        https://lucasbalzer.com
 * Description:       This is a short description of what the plugin does. It's displayed in the WordPress admin area.
 * Version:           1.0.0
 * Author:            Lucas Balzer
 * Author URI:        https://lucasbalzer.com
 * License:           GPL-2.0+
 * License URI:       http://www.gnu.org/licenses/gpl-2.0.txt
 * Text Domain:       loaner-car
 * Domain Path:       /languages
 */


function wplc_register_scripts() {
    wp_register_script( 'wplc-script', plugin_dir_url( __FILE__ ) . 'js/wp-loaner-car.js' , '3', true );
}
add_action( 'wp_enqueue_scripts', 'wplc_register_scripts' );

function wplc_shortcode_handler( $atts ) {
    $a = shortcode_atts( array(
    'id' => ''
    ), $atts );
    $id = $a['id'];
    wp_enqueue_script( 'wplc-script' );
    echo <<<END
    
    <style>
    
    .js-signature {position:relative;}
    .js-signature .clear-sig {
    position: absolute;
    top: 10px;
    right: 10px;
    color: #999;
    border: 1px dotted #ccc;
    padding: 0 5px;
    box-shadow: 0 0 19px -4px #eee;
    }
    
    /* Make Contact Form 7 Select Dropdown field responsive & full width
    .wpcf7-styled select {  
        background-color: #fff;
        border: 1px solid #ccc;
        border-radius: 3px;
        margin: 0;
        padding: 4px;
        text-indent: 0px;
        width: 100%;
        z-index: 100;
    } */
    /* Make Contact Form 7 text field full width & responsive
    .wpcf7-styled .wpcf7-text { 
    	width: 100%;
    } 
    
    .wpcf7-styled label {
        font-size: 2.5em;
        margin-bottom: 25px;
        display: block;
        line-height: 1em;
    }
    
    .wpcf7-styled input[type="checkbox"] {
        zoom: 200%;
        top: 4px;
        position: relative;
    }
    
    .wpcf7-styled .wpcf7-submit {
        margin: 40px auto;
        line-height: 1em;
        font-size: 2.5em;
     }
     
    .wpcf7-styled label:not(.plain)  > span {
        display:block;
        padding-top:10px;
    }
     */
    </style>
END;

}
add_shortcode( 'loaner-car', 'wplc_shortcode_handler' );


add_filter('wpcf7_skip_mail','my_skip_mail');
function my_skip_mail($f){
    $submission = WPCF7_Submission::get_instance();
    $data = $submission->get_posted_data();
    if (array_key_exists ( 'skip-email' , $data )) {
        return true; // DO NOT SEND E-MAIL
    }
}

add_action( 'wpcf7_before_send_mail', 'ping_webhook' );
function ping_webhook( $contact_form ) {
    // Get the post data and other post meta values
    $submission = WPCF7_Submission::get_instance();
    $data = $submission->get_posted_data();
    if (!array_key_exists ( 'process-webhook' , $data )) {return;}
   
    $mj_data = '{
    "Messages":[
      {
         "From":{
            "Email":"[email protected]",
            "Name":"Car Care Membership Robot"
         },
         "To":[
            {
               "Email":"'.$data["your-email"].'",
               "Name":"'.$data["your-name"].'"
            },
            {
               "Email":"[email protected]",
               "Name":"Farhad Ghafarzade"
            }
         ],
         "Subject":"We\'ve received your Total Car Care upgrade request",
         "Variables":{
            "ip-address":"'.$_SERVER["HTTP_CF_CONNECTING_IP"].'",
            "date-time":"'.gmdate("Y-m-d\TH:i:s\Z",$_SERVER["REQUEST_TIME"]).'",
            "name":"'.$data["your-name"].'"
         },
         "TemplateID":198695,
         "TemplateLanguage":true,
         "InlinedAttachments": [
            {
                "ContentType": "image/png",
                "Filename": "signature.png",
                "ContentID": "thesignature",
                "Base64Content":"'.$data["signature-data"].'"
            }
          ],
          "Attachments": [
              {
                  "ContentType": "application/pdf",
                  "Filename": "Terms-and-Conditions.pdf",
                  "Base64Content": "'.base64_encode (file_get_contents('https://greendropgarage.com/wp-content/uploads/Total-Car-Care-Terms-and-Conditions.pdf')).'"
              }
          ]
      }
    ]
    }';
    
    
    

   // Finally send the data to webhook endpoint    
   

    $ch = curl_init("https://api.mailjet.com/v3.1/send"); 
    curl_setopt($ch, CURLOPT_USERPWD, "XXX");
    curl_setopt($ch, CURLOPT_POSTFIELDS, $mj_data);

    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt( $ch, CURLOPT_HTTPHEADER, array('Content-Type:application/json'));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT ,5); //Optional timeout value
    curl_setopt($ch, CURLOPT_TIMEOUT, 5); //Optional timeout value
    $result = curl_exec($ch);
    curl_close($ch);
    // var_dump($result);
}
?>