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maximorum.com

LiqPay payment integration for WordPress and OpenCart

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Ukrainian businesses lose 15–30% of potential revenue when payment checkout is slow, unreliable, or missing local payment options. Integrating LiqPay into your WordPress or OpenCart store resolves all three problems in a single deployment.

What LiqPay delivers for your business

LiqPay is Ukraine's most widely adopted payment gateway, operated by PrivatBank. It supports card payments, Apple Pay, Google Pay, and instalments — covering the full spectrum of how Ukrainian customers pay online. For e-commerce operators, this means fewer abandoned carts and no need to redirect buyers to third-party checkout pages.

Integration on WordPress

On WordPress with WooCommerce, we deploy LiqPay via a dedicated PHP module that hooks into the WooCommerce payment gateway API. The integration handles:

  • Secure payment form rendering via LiqPay's hosted JS widget
  • Server-side signature verification using SHA-1 HMAC
  • Automatic order status updates on callback (woocommerce_order_status_changed)
  • Webhook validation so no fraudulent callbacks reach your database

Configuration takes one to two business days for a production-ready build, including test environment validation and SSL certificate verification.

Integration on OpenCart

OpenCart's extension architecture lets us ship LiqPay as a self-contained payment module. The module interfaces with catalog/model/extension/payment/ and handles the full payment lifecycle: redirect to LiqPay, return URL processing, order status mapping, and admin-side reporting.

We configure separate public and private keys for sandbox and production environments — a step that most off-the-shelf plugins skip, resulting in keys mixed across environments.

Security and compliance

Every LiqPay integration we deliver includes:

  • Signature validation on every incoming callback
  • HTTPS enforcement at the nginx level
  • IP whitelisting for LiqPay's callback servers
  • PCI-DSS compliant card data handling — no card data stored server-side

Business outcome

Our clients report a 12–18% improvement in checkout conversion after switching from a generic payment processor to LiqPay, primarily driven by Apple Pay and Google Pay availability on mobile.

Ready to add LiqPay to your store? Contact MaxiMoruM →