4
0
forked from crowetic/commerce
2020-10-20 13:49:17 -05:00

113 lines
3.0 KiB
TypeScript

import isAllowedMethod from '../utils/is-allowed-method'
import createApiHandler, {
BigcommerceApiHandler,
BigcommerceHandler,
} from '../utils/create-api-handler'
import { BigcommerceApiError } from '../utils/errors'
import getCart from './handlers/get-cart'
import addItem from './handlers/add-item'
import updateItem from './handlers/update-item'
import removeItem from './handlers/remove-item'
type Body<T> = Partial<T> | undefined
export type ItemBody = {
productId: number
variantId: number
quantity?: number
}
export type AddItemBody = { item: ItemBody }
export type UpdateItemBody = { itemId: string; item: ItemBody }
export type RemoveItemBody = { itemId: string }
// TODO: this type should match:
// https://developer.bigcommerce.com/api-reference/cart-checkout/server-server-cart-api/cart/getacart#responses
export type Cart = {
id: string
parent_id?: string
customer_id: number
email: string
currency: { code: string }
tax_included: boolean
base_amount: number
discount_amount: number
cart_amount: number
line_items: {
custom_items: any[]
digital_items: any[]
gift_certificates: any[]
physical_items: any[]
}
// TODO: add missing fields
}
export type CartHandlers = {
getCart: BigcommerceHandler<Cart, { cartId?: string }>
addItem: BigcommerceHandler<Cart, { cartId?: string } & Body<AddItemBody>>
updateItem: BigcommerceHandler<
Cart,
{ cartId?: string } & Body<UpdateItemBody>
>
removeItem: BigcommerceHandler<
Cart,
{ cartId?: string } & Body<RemoveItemBody>
>
}
const METHODS = ['GET', 'POST', 'PUT', 'DELETE']
// TODO: a complete implementation should have schema validation for `req.body`
const cartApi: BigcommerceApiHandler<Cart, CartHandlers> = async (
req,
res,
config,
handlers
) => {
if (!isAllowedMethod(req, res, METHODS)) return
const { cookies } = req
const cartId = cookies[config.cartCookie]
try {
// Return current cart info
if (req.method === 'GET') {
const body = { cartId }
return await handlers['getCart']({ req, res, config, body })
}
// Create or add an item to the cart
if (req.method === 'POST') {
const body = { ...req.body, cartId }
return await handlers['addItem']({ req, res, config, body })
}
// Update item in cart
if (req.method === 'PUT') {
const body = { ...req.body, cartId }
return await handlers['updateItem']({ req, res, config, body })
}
// Remove an item from the cart
if (req.method === 'DELETE') {
const body = { ...req.body, cartId }
return await handlers['removeItem']({ req, res, config, body })
}
} catch (error) {
console.error(error)
const message =
error instanceof BigcommerceApiError
? 'An unexpected error ocurred with the Bigcommerce API'
: 'An unexpected error ocurred'
res.status(500).json({ data: null, errors: [{ message }] })
}
}
export const handlers = { getCart, addItem, updateItem, removeItem }
export default createApiHandler(cartApi, handlers, {})