Show Payment Notices by Visitor IP in WooCommerce

Design goal

For “Show Payment Notices by Visitor IP in WooCommerce”, the page must remain useful before the IP request finishes. The geo result is an enhancement: it is validated, applied to one narrow decision, and discarded when it is incomplete.

Request and decision flow

Show Payment Notices by Visitor IP in WooCommerce: The flow below is specific to this implementation rather than a generic IP lookup checklist.

1. Step 1: Print one stable notice container before payment methods. woocommerce_review_order_before_payment
2. Step 2: Use IP country only as an initial hint while the billing form is incomplete. geo hint
3. Step 3: After checkout fragments refresh, recalculate from billing_country and update the existing node. updated_checkout
4. Step 4: Keep gateway eligibility in server-side WooCommerce rules, not in browser JavaScript. billing country is authoritative
5. Step 5: Store only the two-letter hint for the current session and provide a neutral default notice. sessionStorage + fallback

Production-oriented example

Show Payment Notices by Visitor IP in WooCommerce: This example adds a timeout, response validation, a deterministic fallback, and framework-specific lifecycle handling.

<?php
function ipin_payment_notice_markup(): void {
    echo '<div id="ipin-payment-note" class="woocommerce-info">'
       . esc_html__('Payment options are confirmed after you enter a billing country.', 'ipin')
       . '</div>';
}
add_action('woocommerce_review_order_before_payment', 'ipin_payment_notice_markup', 5);

function ipin_payment_notice_assets(): void {
    if (!is_checkout()) return;
    wp_enqueue_script('jquery');
    wp_add_inline_script('jquery', <<<'JS'
(($) => {
  const notes = {
    JP: 'Domestic bank transfer details appear after order confirmation.',
    DE: 'SEPA availability depends on the billing details and selected gateway.',
    US: 'ACH availability is confirmed after the billing address is validated.'
  };
  const neutral = 'Payment options are confirmed after you enter a billing country.';
  let geoHint = sessionStorage.getItem('ipin_country') || '';

  function render() {
    const billing = String($('#billing_country').val() || '').toUpperCase();
    const country = /^[A-Z]{2}$/.test(billing) ? billing : geoHint;
    $('#ipin-payment-note').text(notes[country] || neutral);
  }

  $(document.body).on('updated_checkout', render);
  render();

  if (!/^[A-Z]{2}$/.test(geoHint)) {
    const controller = new AbortController();
    const timer = setTimeout(() => controller.abort(), 2200);
    fetch('https://my.ipin.io/info', {signal: controller.signal})
      .then(r => { if (!r.ok) throw new Error(r.status); return r.json(); })
      .then(data => {
        const value = String(data.country || '').toUpperCase();
        if (/^[A-Z]{2}$/.test(value)) {
          geoHint = value;
          sessionStorage.setItem('ipin_country', value);
          render();
        }
      })
      .catch(() => {})
      .finally(() => clearTimeout(timer));
  }
})(jQuery);
JS);
}
add_action('wp_enqueue_scripts', 'ipin_payment_notice_assets');

Test matrix

Run these cases against a mock response or a controlled VPN exit before publishing Show Payment Notices by Visitor IP in WooCommerce.

Automated / smoke test

// Manual checkout assertion after changing the billing country:
jQuery('#billing_country').val('DE').trigger('change');
jQuery(document.body).trigger('updated_checkout');
console.assert(jQuery('#ipin-payment-note').text().includes('SEPA'));

Failure handling

Show Payment Notices by Visitor IP in WooCommerce: An error must be visible in logs or developer tools, but it must not leave the visitor with an empty block or a broken checkout.

Practical application

A realistic use case for Show Payment Notices by Visitor IP in WooCommerce: checkout displays a regional bank-transfer note as an early hint, but the final message and gateway rules still follow the billing country entered by the customer.

Production notes

Show Payment Notices by Visitor IP in WooCommerce: Keep the default HTML complete, avoid treating IP location as identity, and do not use the client-side result as an authorization control.

Conclusion

Show Payment Notices by Visitor IP in WooCommerce now has its own implementation path, test evidence, and fallback behavior instead of sharing a generic article template.