Allow API operations to be more customizable

lib/bigcommerce/api/cart/handlers/get-cart.ts

@@ -0,0 +1,29 @@
+import { BigcommerceApiError } from '../../utils/errors'
+import getCartCookie from '../../utils/get-cart-cookie'
+import type { Cart, CartHandlers } from '..'
+
+// Return current cart info
+const getCart: CartHandlers['getCart'] = async ({
+  res,
+  body: { cartId },
+  config,
+}) => {
+  let result: { data?: Cart } = {}
+
+  try {
+    result = await config.storeApiFetch(
+      `/v3/carts/${cartId}?include=redirect_urls`
+    )
+  } catch (error) {
+    if (error instanceof BigcommerceApiError && error.status === 404) {
+      // Remove the cookie if it exists but the cart wasn't found
+      res.setHeader('Set-Cookie', getCartCookie(config.cartCookie))
+    } else {
+      throw error
+    }
+  }
+
+  res.status(200).json({ data: result.data ?? null })
+}
+
+export default getCart