Final Project – Complete Contact Form 7 Addon Development

Final Project – Complete Contact Form 7 Addon Development — a practical guide to Contact Form 7 addon final project with clear examples you can reuse in real projects.

Contact Form 7 Tutorial Series (100/100). Prefer one article? Read the complete Contact Form 7 tutorial.

Short description

Create a professional addon that requires CF7, stores API settings, selects forms to sync, posts submission JSON to an endpoint on `wpcf7_mail_sent`, logs failures, and ships with readme + test checklist.

Steps

1. Define API destination and payload shape.
2. Implement settings + mail_sent sync.
3. Add logging and failure handling.
4. Document and test on staging.

Final project scope

1. Plugin bootstrap + WPCF7_VERSION check
2. Settings page (API URL, key, form IDs)
3. wpcf7_mail_sent handler
4. wp_remote_post with timeout + logging
5. Admin notice if CF7 missing
6. readme.txt + changelog
7. Staging test checklist

Starter bootstrap

<?php
/**
 * Plugin Name: Acme CF7 Sync
 * Description: Final project — sync CF7 submissions to an API.
 * Version: 1.0.0
 * Text Domain: acme-cf7-sync
 */

if (! defined('ABSPATH')) {
    exit;
}

add_action('plugins_loaded', function () {
    if (! defined('WPCF7_VERSION')) {
        add_action('admin_notices', function () {
            echo '<div class="notice notice-error"><p>Acme CF7 Sync requires Contact Form 7.</p></div>';
        });
        return;
    }
    require_once __DIR__ . '/includes/class-acme-cf7-sync.php';
    AcmeCF7SyncPlugin::instance(__FILE__)->boot();
});