checkout

.env.example

@@ -3,4 +3,5 @@ TWITTER_CREATOR="@vercel"
 TWITTER_SITE="https://nextjs.org/commerce"
 SITE_NAME="Next.js Commerce"
 
-CMS_URL="http://localhost:3000"
+APP_URL="http://localhost:3000"
+CMS_URL="http://localhost:8000"

app/api/checkout/route.ts

@@ -0,0 +1,21 @@
+import { ajax } from 'lib/shopify/ajax';
+import { cookies } from 'next/headers';
+import { NextResponse } from 'next/server';
+
+export async function GET(): Promise<NextResponse> {
+  const cartId = cookies().get('cartId')?.value;
+
+  if (!cartId) {
+    return NextResponse.json({ message: 'Cart not found.' }, { status: 404 });
+  }
+
+  try {
+    const session = await ajax<any>('POST', `${process.env.CMS_URL}/api/carts/${cartId}/checkout`, {
+      url: process.env.APP_URL
+    });
+
+    return NextResponse.redirect(session.url, 303);
+  } catch (err: any) {
+    return NextResponse.json({ message: err.message }, { status: err.statusCode });
+  }
+}