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Preconnect to checkout origin on cart page #2521

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Merged
bookernath merged 1 commit into from
Aug 13, 2025
Merged

Preconnect to checkout origin on cart page #2521

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5 changes: 5 additions & 0 deletions .changeset/smooth-rats-rule.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"@bigcommerce/catalyst-core": patch
---

Preconnect to checkout domain on cart page to improve checkout load time
9 changes: 9 additions & 0 deletions core/app/[locale]/(default)/cart/_components/checkout-preconnect.tsx
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@matthewvolk matthewvolk Aug 13, 2025

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🍹 Would it be beneficial to use this anywhere else? Wondering if we generalize it CheckoutPreconnect → PreconnectResource and add an optional param for options: PreconnectOptions

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@bookernath bookernath Aug 13, 2025

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I thought about that, and I don't think so - Next.js already has great defaults for this in the rest of the application, our situation here is special because we are redirecting externally. The other place where this might be useful is in areas where you're likely to proceed directly to checkout, but this is the only place in the Catalyst codebase where this is relevant right now.

Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@
'use client';

import { preconnect } from 'react-dom';

export function CheckoutPreconnect({ url }: { url: string }) {
preconnect(url);

return null;
}
5 changes: 5 additions & 0 deletions core/app/[locale]/(default)/cart/page-data.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -190,6 +190,11 @@ const CartPageQuery = graphql(
`
query CartPageQuery($cartId: String) {
site {
settings {
url {
checkoutUrl
}
}
cart(entityId: $cartId) {
entityId
version
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4 changes: 4 additions & 0 deletions core/app/[locale]/(default)/cart/page.tsx
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Expand Up @@ -12,6 +12,7 @@ import { updateCouponCode } from './_actions/update-coupon-code';
import { updateLineItem } from './_actions/update-line-item';
import { updateShippingInfo } from './_actions/update-shipping-info';
import { CartViewed } from './_components/cart-viewed';
import { CheckoutPreconnect } from './_components/checkout-preconnect';
import { getCart, getShippingCountries } from './page-data';

interface Props {
Expand Down Expand Up @@ -152,9 +153,12 @@ export default async function Cart({ params }: Props) {
const showShippingForm =
shippingConsignment?.address && !shippingConsignment.selectedShippingOption;

const checkoutUrl = data.site.settings?.url.checkoutUrl;

return (
<>
<CartAnalyticsProvider data={Streamable.from(() => getAnalyticsData(cartId))}>
{checkoutUrl ? <CheckoutPreconnect url={checkoutUrl} /> : null}
<CartComponent
cart={{
lineItems: formattedLineItems,
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