forked from crowetic/commerce
100 lines
2.7 KiB
TypeScript
100 lines
2.7 KiB
TypeScript
import { serialize, CookieSerializeOptions } from 'cookie'
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import isAllowedMethod from './utils/is-allowed-method'
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import createApiHandler, {
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BigcommerceApiHandler,
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} from './utils/create-api-handler'
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import { BigcommerceApiError } from './utils/errors'
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type Cart = any
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const METHODS = ['GET', 'POST', 'PUT', 'DELETE']
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const cartApi: BigcommerceApiHandler = async (req, res, config) => {
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if (!isAllowedMethod(req, res, METHODS)) return
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const { cookies } = req
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const cartId = cookies[config.cartCookie]
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try {
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// Return current cart info
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if (req.method === 'GET') {
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let result: { data?: Cart } = {}
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try {
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result = await config.storeApiFetch(
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`/v3/carts/${cartId}?include=redirect_urls`
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)
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} catch (error) {
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if (error instanceof BigcommerceApiError && error.status === 404) {
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// Remove the cookie if it exists but the cart wasn't found
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res.setHeader('Set-Cookie', getCartCookie(name))
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} else {
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throw error
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}
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}
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return res.status(200).json({ data: result.data ?? null })
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}
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// Create or add a product to the cart
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if (req.method === 'POST') {
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const { product } = req.body
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if (!product) {
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return res.status(400).json({
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errors: [{ message: 'Missing product' }],
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})
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}
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const options = {
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method: 'POST',
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body: JSON.stringify({
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line_items: [parseProduct(product)],
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}),
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}
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const { data } = cartId
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? await config.storeApiFetch(`/v3/carts/${cartId}/items`, options)
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: await config.storeApiFetch('/v3/carts', options)
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// Create or update the cart cookie
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res.setHeader(
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'Set-Cookie',
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getCartCookie(name, data.id, config.cartCookieMaxAge)
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)
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return res.status(200).json({ done: { data } })
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}
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} catch (error) {
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const message =
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error instanceof BigcommerceApiError
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? 'An unexpected error ocurred with the Bigcommerce API'
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: 'An unexpected error ocurred'
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res.status(500).json({ errors: [{ message }] })
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}
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}
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function getCartCookie(name: string, cartId?: string, maxAge?: number) {
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const options: CookieSerializeOptions =
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cartId && maxAge
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? {
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maxAge,
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expires: new Date(Date.now() + maxAge * 1000),
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httpOnly: true,
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secure: process.env.NODE_ENV === 'production',
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path: '/',
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sameSite: 'lax',
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}
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: { maxAge: -1, path: '/' } // Removes the cookie
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return serialize(name, cartId || '', options)
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}
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const parseProduct = (product: any) => ({
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quantity: product.quantity,
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product_id: product.productId,
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variant_id: product.variantId,
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})
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export default createApiHandler(cartApi)
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