KeenWP

Curated resource guide

WooCommerce Payments Development

Develop WooCommerce payment integrations that handle real transaction states, retries, and asynchronous events safely. This guide covers gateway and Blocks APIs, tokenization, authorization and capture, refunds, subscriptions, webhooks, 3DS and SCA, PCI scope, idempotency, order status, testing, logging, reconciliation, and failure recovery.

Scope

What this guide covers

  • Payment-gateway architecture
  • checkout integration
  • Payment Gateway API
  • Blocks payment-method integration
  • authorization and capture
  • tokenization
  • saved cards
  • refunds
  • voids
  • subscriptions/recurring-payment compatibility
  • webhooks
  • asynchronous payments
  • redirects
  • 3DS/SCA
  • PCI scope
  • idempotency
  • order-status transitions
  • failed payments
  • retries
  • currency
  • fees
  • sandbox/test modes
  • logging
  • reconciliation
  • security
  • fraud considerations
  • testing
  • and gateway-specific reliability patterns

Selected references

Curated resources

Links open the original publisher so you can use the complete, current material in context.

  1. 01
    5
    Recommended starting point

    WooCommerce Payment Gateway API

    The core integration contract for gateway settings, checkout processing, order state, refunds, and receipts.

    developer.woocommerce.com
  2. 02
    5

    WooCommerce Payment Token API

    Store and manage reusable payment-token references through WooCommerce APIs instead of custom customer metadata.

    developer.woocommerce.com
  3. 03
    5

    Checkout Block Payment Method Integration

    Register a payment method for Cart and Checkout Blocks with correct frontend state and server processing.

    developer.woocommerce.com
  4. 04
    5

    WooCommerce Payment Data Store

    Understand the Blocks payment state, registered methods, processing status, and selectors used during checkout.

    developer.woocommerce.com
  5. 05
    5

    Checkout Flow and Events

    Follow the event-driven checkout lifecycle before attaching validation or asynchronous payment behavior.

    developer.woocommerce.com
  6. 06
    4

    Subscriptions Payment Gateway Integration

    Handle recurring capabilities, saved methods, scheduled charges, renewals, and subscription-specific gateway behavior.

    woocommerce.com
  7. 07
    5

    PCI Security Standards

    Consult the source standards when making architectural decisions that affect card-data handling and PCI scope.

    pcisecuritystandards.org