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commerce_checkout_lock

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Commerce Checkout Lock

Prevents duplicate checkout submissions in Drupal Commerce.

Features

Server-side locking using Drupal's persistent lock backend
Client-side double-click protection with visual feedback
Automatic lock cleanup via kernel terminate safety net
Configurable checkout pane for flexible placement

Installation

Install as usual: `composer require drupal/commerce_checkout_lock`
Enable the module
Configure your checkout flow to include the "Checkout Lock" pane before payment

Configuration

In your checkout flow settings, add the "Checkout Lock" pane to an existing step
(e.g., "Review" or "Payment") before any payment-related panes. The pane is
invisible to customers - it only attaches the protection logic to the form.

How it works

When checkout form submits, JavaScript disables buttons and shows "Processing..."
The checkout pane acquires a persistent lock for the order
If lock fails (concurrent submission), user sees an error message
Lock releases on checkout completion or request termination (safety net)

Requirements

Drupal 10.3+ or 11.x
Commerce 2.x or 3.x

Activity

Total releases

1

First release

Jan 2026

Latest release

3 months ago

Release cadence

—

Stability

100% stable

Releases

Version	Type	Release date
1.0.0	Stable	Jan 13, 2026