import { serialize, CookieSerializeOptions } from 'cookie' import isAllowedMethod from './utils/is-allowed-method' import createApiHandler, { BigcommerceApiHandler, } from './utils/create-api-handler' import { BigcommerceApiError } from './utils/errors' type Cart = any const METHODS = ['GET', 'POST', 'PUT', 'DELETE'] const cartApi: BigcommerceApiHandler = async (req, res, config) => { if (!isAllowedMethod(req, res, METHODS)) return const { cookies } = req const cartId = cookies[config.cartCookie] // Return current cart info if (req.method === 'GET') { let result: { data?: Cart } = {} try { result = await config.storeApiFetch( `/v3/carts/${cartId}?include=redirect_urls` ) } catch (error) { if (error instanceof BigcommerceApiError && error.status === 404) { // The cookie exists but the cart wasn't found, so, remove the cookie res.setHeader('Set-Cookie', getCartCookie(name)) } else { throw error } } return res.status(200).json({ cart: result.data ?? null }) } } const ONE_DAY = 60 * 60 * 24 const MAX_AGE = ONE_DAY * 30 function getCartCookie(name: string, cartId?: string) { const options: CookieSerializeOptions = cartId ? { maxAge: MAX_AGE, expires: new Date(Date.now() + MAX_AGE * 1000), httpOnly: true, secure: process.env.NODE_ENV === 'production', path: '/', sameSite: 'lax', } : { maxAge: -1, path: '/' } // Removes the cookie return serialize(name, cartId || '', options) } export default createApiHandler(cartApi)