Implement cart

framework/ordercloud/api/endpoints/cart/add-item.ts

@@ -0,0 +1,77 @@
+import type { CartEndpoint } from '.'
+import type { RawVariant } from '../../../types/product'
+import type { OrdercloudLineItem } from '../../../types/cart'
+
+import { serialize } from 'cookie'
+
+import { formatCart } from '../../utils/cart'
+
+const addItem: CartEndpoint['handlers']['addItem'] = async ({
+  res,
+  body: { cartId, item },
+  config: { fetch, cartCookie },
+}) => {
+  // Return an error if no item is present
+  if (!item) {
+    return res.status(400).json({
+      data: null,
+      errors: [{ message: 'Missing item' }],
+    })
+  }
+
+  // Set the quantity if not present
+  if (!item.quantity) item.quantity = 1
+
+  // Create an order if it doesn't exist
+  if (!cartId) {
+    cartId = await fetch('POST', `/orders/Outgoing`, {}).then(
+      (response: { ID: string }) => response.ID
+    )
+  }
+
+  // Set the cart cookie
+  res.setHeader(
+    'Set-Cookie',
+    serialize(cartCookie, cartId, {
+      maxAge: 60 * 60 * 24 * 30,
+      expires: new Date(Date.now() + 60 * 60 * 24 * 30 * 1000),
+      secure: process.env.NODE_ENV === 'production',
+      path: '/',
+      sameSite: 'lax',
+    })
+  )
+
+  // Store specs
+  let specs: RawVariant['Specs'] = []
+
+  // If a variant is present, fetch its specs
+  if (item.variantId) {
+    specs = await fetch(
+      'GET',
+      `/me/products/${item.productId}/variants/${item.variantId}`
+    ).then((res: RawVariant) => res.Specs)
+  }
+
+  // Add the item to the order
+  await fetch('POST', `/orders/Outgoing/${cartId}/lineitems`, {
+    ProductID: item.productId,
+    Quantity: item.quantity,
+    Specs: specs,
+  })
+
+  // Get cart
+  const [cart, lineItems] = await Promise.all([
+    fetch('GET', `/orders/Outgoing/${cartId}`),
+    fetch('GET', `/orders/Outgoing/${cartId}/lineitems`).then(
+      (response: { Items: OrdercloudLineItem[] }) => response.Items
+    ),
+  ])
+
+  // Format cart
+  const formattedCart = formatCart(cart, lineItems)
+
+  // Return cart and errors
+  res.status(200).json({ data: formattedCart, errors: [] })
+}
+
+export default addItem