Replaces Route Handlers with Server Actions (vercel#1050)

bigcommerce · Jul 21, 2023 · 5e4c39e · 5e4c39e
1 parent c744bad
commit 5e4c39e
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Showing 9 changed files with 170 additions and 244 deletions.
diff --git a/app/api/cart/route.ts b/app/api/cart/route.ts
diff --git a/app/product/[handle]/page.tsx b/app/product/[handle]/page.tsx
@@ -5,7 +5,7 @@ import { Suspense } from 'react';
 import Grid from 'components/grid';
 import Footer from 'components/layout/footer';
 import ProductGridItems from 'components/layout/product-grid-items';
-import { AddToCart } from 'components/product/add-to-cart';
+import { AddToCart } from 'components/cart/add-to-cart';
 import { Gallery } from 'components/product/gallery';
 import { VariantSelector } from 'components/product/variant-selector';
 import Prose from 'components/prose';

diff --git a/components/cart/actions.ts b/components/cart/actions.ts
@@ -0,0 +1,57 @@
+'use server';
+
+import { addToCart, removeFromCart, updateCart } from 'lib/shopify';
+import { cookies } from 'next/headers';
+
+export const addItem = async (variantId: string | undefined): Promise<Error | undefined> => {
+  const cartId = cookies().get('cartId')?.value;
+
+  if (!cartId || !variantId) {
+    return new Error('Missing cartId or variantId');
+  }
+  try {
+    await addToCart(cartId, [{ merchandiseId: variantId, quantity: 1 }]);
+  } catch (e) {
+    return new Error('Error adding item', { cause: e });
+  }
+};
+
+export const removeItem = async (lineId: string): Promise<Error | undefined> => {
+  const cartId = cookies().get('cartId')?.value;
+
+  if (!cartId) {
+    return new Error('Missing cartId');
+  }
+  try {
+    await removeFromCart(cartId, [lineId]);
+  } catch (e) {
+    return new Error('Error removing item', { cause: e });
+  }
+};
+
+export const updateItemQuantity = async ({
+  lineId,
+  variantId,
+  quantity
+}: {
+  lineId: string;
+  variantId: string;
+  quantity: number;
+}): Promise<Error | undefined> => {
+  const cartId = cookies().get('cartId')?.value;
+
+  if (!cartId) {
+    return new Error('Missing cartId');
+  }
+  try {
+    await updateCart(cartId, [
+      {
+        id: lineId,
+        merchandiseId: variantId,
+        quantity
+      }
+    ]);
+  } catch (e) {
+    return new Error('Error updating item quantity', { cause: e });
+  }
+};
diff --git a/components/product/add-to-cart.tsx → components/cart/add-to-cart.tsx b/components/product/add-to-cart.tsx → components/cart/add-to-cart.tsx
@@ -1,6 +1,7 @@
 'use client';
 
 import clsx from 'clsx';
+import { addItem } from 'components/cart/actions';
 import { useRouter, useSearchParams } from 'next/navigation';
 import { useEffect, useState, useTransition } from 'react';
 
@@ -21,7 +22,6 @@ export function AddToCart({
   const router = useRouter();
   const searchParams = useSearchParams();
   const [isPending, startTransition] = useTransition();
-  const [adding, setAdding] = useState(false);
 
   useEffect(() => {
     const variant = variants.find((variant: ProductVariant) =>
@@ -36,51 +36,33 @@ export function AddToCart({
     }
   }, [searchParams, variants, setSelectedVariantId]);
 
-  const isMutating = adding || isPending;
-
-  async function handleAdd() {
-    if (!availableForSale) return;
-
-    setAdding(true);
-
-    const response = await fetch(`/api/cart`, {
-      method: 'POST',
-      body: JSON.stringify({
-        merchandiseId: selectedVariantId,
-        productId: selectedProductId,
-        isBigCommerceAPI: true
-      })
-    });
-
-    const data = await response.json();
-
-    if (data.error) {
-      alert(data.error);
-      return;
-    }
-
-    setAdding(false);
-
-    startTransition(() => {
-      router.refresh();
-    });
-  }
-
   return (
     <button
       aria-label="Add item to cart"
-      disabled={isMutating}
-      onClick={handleAdd}
+      disabled={isPending}
+      onClick={() => {
+        if (!availableForSale) return;
+        startTransition(async () => {
+          const error = await addItem(selectedVariantId);
+
+          if (error) {
+            alert(error);
+            return;
+          }
+
+          router.refresh();
+        });
+      }}
       className={clsx(
         'flex w-full items-center justify-center bg-black p-4 text-sm uppercase tracking-wide text-white opacity-90 hover:opacity-100 dark:bg-white dark:text-black',
         {
           'cursor-not-allowed opacity-60': !availableForSale,
-          'cursor-not-allowed': isMutating
+          'cursor-not-allowed': isPending
         }
       )}
     >
       <span>{availableForSale ? 'Add To Cart' : 'Out Of Stock'}</span>
-      {isMutating ? <LoadingDots className="bg-white dark:bg-black" /> : null}
+      {isPending ? <LoadingDots className="bg-white dark:bg-black" /> : null}
     </button>
   );
 }
diff --git a/components/cart/delete-item-button.tsx b/components/cart/delete-item-button.tsx
@@ -1,51 +1,40 @@
 import CloseIcon from 'components/icons/close';
 import LoadingDots from 'components/loading-dots';
 import { useRouter } from 'next/navigation';
-import { startTransition, useState } from 'react';
 
 import clsx from 'clsx';
+import { removeItem } from 'components/cart/actions';
 import type { VercelCartItem as CartItem } from 'lib/bigcommerce/types';
+import { useTransition } from 'react';
 
 export default function DeleteItemButton({ item }: { item: CartItem }) {
   const router = useRouter();
-  const [removing, setRemoving] = useState(false);
+  const [isPending, startTransition] = useTransition();
 
-  async function handleRemove() {
-    setRemoving(true);
-
-    const response = await fetch(`/api/cart`, {
-      method: 'POST',
-      body: JSON.stringify({
-        lineId: item.id,
-        isBigCommerceAPI: true,
-      })
-    });
-    const data = await response.json();
-
-    if (data.error) {
-      alert(data.error);
-      return;
-    }
-
-    setRemoving(false);
-
-    startTransition(() => {
-      router.refresh();
-    });
-  }
   return (
     <button
       aria-label="Remove cart item"
-      onClick={handleRemove}
-      disabled={removing}
+      onClick={() => {
+        startTransition(async () => {
+          const error = await removeItem(item.id);
+
+          if (error) {
+            alert(error);
+            return;
+          }
+
+          router.refresh();
+        });
+      }}
+      disabled={isPending}
       className={clsx(
         'ease flex min-w-[36px] max-w-[36px] items-center justify-center border px-2 transition-all duration-200 hover:border-gray-800 hover:bg-gray-100 dark:border-gray-700 dark:hover:border-gray-600 dark:hover:bg-gray-900',
         {
-          'cursor-not-allowed px-0': removing
+          'cursor-not-allowed px-0': isPending
         }
       )}
     >
-      {removing ? (
+      {isPending ? (
         <LoadingDots className="bg-black dark:bg-white" />
       ) : (
         <CloseIcon className="hover:text-accent-3 mx-[1px] h-4 w-4" />