Add Open Commerce Provider

Add Open Commerce Provider

packages/bigcommerce/src/cart/use-update-item.tsx

@@ -5,7 +5,9 @@ import type {
   HookFetcherContext,
 } from '@vercel/commerce/utils/types'
 import { ValidationError } from '@vercel/commerce/utils/errors'
-import useUpdateItem, { UseUpdateItem } from '@vercel/commerce/cart/use-update-item'
+import useUpdateItem, {
+  UseUpdateItem,
+} from '@vercel/commerce/cart/use-update-item'
 import type { LineItem, UpdateItemHook } from '@vercel/commerce/types/cart'
 import { handler as removeItemHandler } from './use-remove-item'
 import useCart from './use-cart'

packages/commerce/new-provider.md

@@ -15,7 +15,8 @@ A commerce provider is a headless e-commerce platform that integrates with the [
 - Kibo Commerce ([packages/kibocommerce](../kibocommerce))
 - Commerce.js ([packages/commercejs](../commercejs))
 - SFCC - SalesForce Cloud Commerce ([packages/sfcc](../sfcc))
-
+- Mailchimp Open Commerce ([packages/opencommerce](../opencommerce))
+-
 Adding a commerce provider means adding a new folder in `packages` with a folder structure like the next one:
 
 - `src`

packages/opencommerce/.env.template

@@ -0,0 +1,5 @@
+COMMERCE_PROVIDER=@vercel/commerce-opencommerce
+
+OPENCOMMERCE_STOREFRONT_API_URL=
+OPENCOMMERCE_PRIMARY_SHOP_ID=
+OPENCOMMERCE_IMAGE_DOMAIN=

packages/opencommerce/.prettierignore

@@ -0,0 +1,2 @@
+node_modules
+dist

packages/opencommerce/.prettierrc

@@ -0,0 +1,6 @@
+{
+  "semi": false,
+  "singleQuote": true,
+  "tabWidth": 2,
+  "useTabs": false
+}

packages/opencommerce/README.md

@@ -0,0 +1,56 @@
+## Open Commerce Provider
+
+**Preview:** https://commerce-pinkcloudvnn.vercel.app/
+
+We are using this admin interface for demo: https://admin.open-commerce.io/
+Storefront API URL: https://api.open-commerce.io/graphql
+
+## Available Features
+
+- Cart
+- Search
+- Custom Checkout
+- Custom Navigation
+
+## Steps to get started:
+
+1. Duplicate `site/.env.template` and rename it to `site/.env.local`
+2. Setup env variables related to open commerce provider, something looks like this:
+
+```
+COMMERCE_PROVIDER=@vercel/commerce-opencommerce
+OPENCOMMERCE_STOREFRONT_API_URL=https://api.open-commerce.io/graphql
+OPENCOMMERCE_PRIMARY_SHOP_ID=xxxxxxxxxxxxxxxxxxxxxxxxxxxx
+OPENCOMMERCE_IMAGE_DOMAIN=api.open-commerce.io
+```
+
+**Note**: We can query the primary shop ID from the graphql api playground
+
+3. Run `yarn` and `yarn dev` in the root folder
+
+### Troubleshoot
+
+https://github.com/reactioncommerce/commerce#troubleshoot
+
+For more information about the repository, check out the README file here: https://github.com/reactioncommerce/commerce
+
+## Custom Checkouts
+
+The demo site use [Example Payment Plugin](https://github.com/reactioncommerce/api-plugin-payments-example) for processing payments. To make the checkout flow works as expected, some prerequisite steps need to be handled:
+
+- Add and enable at least one flat-rate shipping option in the admin setting page. By default, we select the first shipping option to create the order
+- Enable the `IOU Example` payment method in the admin setting page
+- Fill in all the required fields in the `Add Shipping Address` step in the storefront
+- After processing checkout, check the orders page in the admin interface to confirm the order has been successfully created
+
+We can also use `Stripe` as the default payment method by following steps:
+
+- Add and enable at least one flat-rate shipping option in the admin setting page. By default, we select the first shipping option to create the order
+- Enable the `Stripe (SCA)` payment method in the admin setting page
+- Add `OPENCOMMERCE_STRIPE_PUBLIC_API_KEY` env variable to the `site/.env.local` file
+- Add `STRIPE_API_KEY` env variable to reaction API `.env` file with the private API key from Stripe
+- Modify the `submit-checkout` api endpoint to include additional steps for Stripe payment (eg: create/confirm payment intent, pass payment intent id to placeOrder request body,...).
+
+## Custom Navigation
+
+By default NextJS only display two categories/tags of products in the navbar. This feature enables us to show the organized categories/tags as navigation in the admin to our storefront. Also we can leverage this feature to show URLs that are not relative to the shop (eg: admin page, documentation page, ...). This feature is enabled by default, we can turn it off anytime by modify the value in the `commerce.config.json` file.

packages/opencommerce/codegen.json

@@ -0,0 +1,22 @@
+{
+  "overwrite": true,
+  "schema": "http://localhost:3000/graphql",
+  "documents": [
+    {
+      "./src/api/**/*.ts": {
+        "noRequire": true
+      }
+    }
+  ],
+  "generates": {
+    "./schema.d.ts": {
+      "plugins": ["typescript", "typescript-operations"]
+    },
+    "./schema.graphql": {
+      "plugins": ["schema-ast"]
+    }
+  },
+  "hooks": {
+    "afterAllFileWrite": ["prettier --write"]
+  }
+}

packages/opencommerce/global.d.ts

@@ -0,0 +1 @@
+declare module '@components/checkout/context'

packages/opencommerce/package.json

@@ -0,0 +1,84 @@
+{
+  "name": "@vercel/commerce-opencommerce",
+  "version": "0.0.1",
+  "license": "MIT",
+  "scripts": {
+    "release": "taskr release",
+    "build": "taskr build",
+    "dev": "taskr",
+    "types": "tsc --emitDeclarationOnly",
+    "prettier-fix": "prettier --write .",
+    "generate": "graphql-codegen --config codegen.json"
+  },
+  "sideEffects": false,
+  "type": "module",
+  "exports": {
+    ".": "./dist/index.js",
+    "./*": [
+      "./dist/*.js",
+      "./dist/*/index.js"
+    ],
+    "./next.config": "./dist/next.config.cjs"
+  },
+  "typesVersions": {
+    "*": {
+      "*": [
+        "src/*",
+        "src/*/index"
+      ],
+      "next.config": [
+        "dist/next.config.d.cts"
+      ]
+    }
+  },
+  "files": [
+    "dist"
+  ],
+  "publishConfig": {
+    "typesVersions": {
+      "*": {
+        "*": [
+          "dist/*.d.ts",
+          "dist/*/index.d.ts"
+        ],
+        "next.config": [
+          "dist/next.config.d.cts"
+        ]
+      }
+    }
+  },
+  "dependencies": {
+    "@vercel/commerce": "^0.0.1",
+    "@vercel/fetch": "^6.1.1"
+  },
+  "peerDependencies": {
+    "next": "^12",
+    "react": "^17",
+    "react-dom": "^17"
+  },
+  "devDependencies": {
+    "@graphql-codegen/cli": "2.6.2",
+    "@graphql-codegen/schema-ast": "^2.4.1",
+    "@graphql-codegen/typescript": "2.4.8",
+    "@graphql-codegen/typescript-operations": "2.3.5",
+    "@taskr/clear": "^1.1.0",
+    "@taskr/esnext": "^1.1.0",
+    "@taskr/watch": "^1.1.0",
+    "@types/node": "^17.0.8",
+    "@types/react": "^17.0.38",
+    "lint-staged": "^12.1.7",
+    "next": "^12.0.8",
+    "prettier": "^2.5.1",
+    "react": "^17.0.2",
+    "react-dom": "^17.0.2",
+    "taskr": "^1.1.0",
+    "taskr-swc": "^0.0.1",
+    "typescript": "^4.5.4"
+  },
+  "lint-staged": {
+    "**/*.{js,jsx,ts,tsx,json}": [
+      "prettier --write",
+      "git add"
+    ]
+  }
+}

packages/opencommerce/src/api/endpoints/cart/add-item.ts

@@ -0,0 +1,76 @@
+import { normalizeCart } from '../../../utils/normalize'
+import getCartCookie from '../../utils/get-cart-cookie'
+import addCartItemsMutation from '../../mutations/add-cart-item'
+import createCartMutation from '../../mutations/create-cart'
+
+import type { CartEndpoint } from '.'
+
+const addItem: CartEndpoint['handlers']['addItem'] = async ({
+  res,
+  body: { cartId, item },
+  config,
+  req: { cookies },
+}) => {
+  if (!item) {
+    return res.status(400).json({
+      data: null,
+      errors: [{ message: 'Missing item' }],
+    })
+  }
+  if (!item.quantity) item.quantity = 1
+
+  const variables = {
+    input: {
+      shopId: config.shopId,
+      items: [
+        {
+          productConfiguration: {
+            productId: item.productId,
+            productVariantId: item.variantId,
+          },
+          quantity: item.quantity,
+          price: {
+            amount: item.variant?.price,
+            currencyCode: item.currencyCode,
+          },
+        },
+      ],
+    },
+  }
+
+  if (!cartId) {
+    const {
+      data: { createCart },
+    } = await config.fetch(createCartMutation, { variables })
+    res.setHeader('Set-Cookie', [
+      getCartCookie(
+        config.cartCookie,
+        createCart.cart._id,
+        config.cartCookieMaxAge
+      ),
+      getCartCookie(
+        config.anonymousCartTokenCookie,
+        createCart.token,
+        config.cartCookieMaxAge
+      ),
+    ])
+
+    return res.status(200).json({ data: normalizeCart(createCart.cart) })
+  }
+
+  const {
+    data: { addCartItems },
+  } = await config.fetch(addCartItemsMutation, {
+    variables: {
+      input: {
+        items: variables.input.items,
+        cartId,
+        cartToken: cookies[config.anonymousCartTokenCookie],
+      },
+    },
+  })
+
+  return res.status(200).json({ data: normalizeCart(addCartItems.cart) })
+}
+
+export default addItem

packages/opencommerce/src/api/endpoints/cart/get-cart.ts

@@ -0,0 +1,32 @@
+import { normalizeCart } from '../../../utils/normalize'
+import getAnonymousCartQuery from '../../queries/get-anonymous-cart'
+import type { CartEndpoint } from '.'
+
+// Return current cart info
+const getCart: CartEndpoint['handlers']['getCart'] = async ({
+  res,
+  req: { cookies },
+  body: { cartId },
+  config,
+}) => {
+  if (cartId && cookies[config.anonymousCartTokenCookie]) {
+    const {
+      data: { cart: rawAnonymousCart },
+    } = await config.fetch(getAnonymousCartQuery, {
+      variables: {
+        cartId,
+        cartToken: cookies[config.anonymousCartTokenCookie],
+      },
+    })
+
+    return res.status(200).json({
+      data: rawAnonymousCart ? normalizeCart(rawAnonymousCart) : null,
+    })
+  }
+
+  res.status(200).json({
+    data: null,
+  })
+}
+
+export default getCart

packages/opencommerce/src/api/endpoints/cart/index.ts

@@ -0,0 +1,26 @@
+import { GetAPISchema, createEndpoint } from '@vercel/commerce/api'
+import cartEndpoint from '@vercel/commerce/api/endpoints/cart'
+import type { CartSchema } from '../../../types/cart'
+import type { OpenCommerceAPI } from '../../index'
+import getCart from './get-cart'
+import addItem from './add-item'
+import updateItem from './update-item'
+import removeItem from './remove-item'
+
+export type CartAPI = GetAPISchema<OpenCommerceAPI, CartSchema>
+
+export type CartEndpoint = CartAPI['endpoint']
+
+export const handlers: CartEndpoint['handlers'] = {
+  addItem,
+  getCart,
+  updateItem,
+  removeItem,
+}
+
+const cartApi = createEndpoint<CartAPI>({
+  handler: cartEndpoint,
+  handlers,
+})
+
+export default cartApi

packages/opencommerce/src/api/endpoints/cart/remove-item.ts

@@ -0,0 +1,39 @@
+import { normalizeCart } from '../../../utils/normalize'
+import getCartCookie from '../../utils/get-cart-cookie'
+import removeCartItemsMutation from '../../mutations/remove-cart-item'
+import type { CartEndpoint } from '.'
+
+const removeItem: CartEndpoint['handlers']['removeItem'] = async ({
+  res,
+  body: { cartId, itemId },
+  config,
+  req: { cookies },
+}) => {
+  if (!cartId || !itemId) {
+    return res.status(400).json({
+      data: null,
+      errors: [{ message: 'Invalid request' }],
+    })
+  }
+
+  const {
+    data: { removeCartItems },
+  } = await config.fetch(removeCartItemsMutation, {
+    variables: {
+      input: {
+        cartId,
+        cartItemIds: [itemId],
+        cartToken: cookies[config.anonymousCartTokenCookie],
+      },
+    },
+  })
+
+  res.setHeader(
+    'Set-Cookie',
+    getCartCookie(config.cartCookie, cartId, config.cartCookieMaxAge)
+  )
+
+  res.status(200).json({ data: normalizeCart(removeCartItems.cart) })
+}
+
+export default removeItem

packages/opencommerce/src/api/endpoints/cart/update-item.ts

@@ -0,0 +1,39 @@
+import { normalizeCart } from '../../../utils/normalize'
+import getCartCookie from '../../utils/get-cart-cookie'
+import updateCartItemsQuantityMutation from '../../mutations/update-cart-item-quantity'
+import type { CartEndpoint } from '.'
+
+const updateItem: CartEndpoint['handlers']['updateItem'] = async ({
+  res,
+  body: { cartId, itemId, item },
+  config,
+  req: { cookies },
+}) => {
+  if (!cartId || !itemId || !item) {
+    return res.status(400).json({
+      data: null,
+      errors: [{ message: 'Invalid request' }],
+    })
+  }
+
+  const {
+    data: { updateCartItemsQuantity },
+  } = await config.fetch(updateCartItemsQuantityMutation, {
+    variables: {
+      updateCartItemsQuantityInput: {
+        cartId,
+        cartToken: cookies[config.anonymousCartTokenCookie],
+        items: [{ cartItemId: itemId, quantity: item.quantity }],
+      },
+    },
+  })
+
+  // Update the cart cookie
+  res.setHeader(
+    'Set-Cookie',
+    getCartCookie(config.cartCookie, cartId, config.cartCookieMaxAge)
+  )
+  res.status(200).json({ data: normalizeCart(updateCartItemsQuantity.cart) })
+}
+
+export default updateItem

packages/opencommerce/src/api/endpoints/catalog/get-products.ts

@@ -0,0 +1,56 @@
+import type { ProductsEndpoint } from './products'
+import getSearchVariables from '../../utils/get-search-variables'
+import getSortVariables from '../../utils/get-sort-variables'
+import { CatalogItemsQueryVariables } from '../../../../schema'
+import getShopCurrencyQuery from '../../queries/get-shop-currency-query'
+
+const getProducts: ProductsEndpoint['handlers']['getProducts'] = async ({
+  body: { brandId, search, sort, categoryId },
+  res,
+  config,
+  commerce,
+}) => {
+  let sortParams = getSortVariables(sort)
+  if (sortParams?.sortBy === 'featured' && !categoryId) {
+    sortParams = null
+  }
+
+  let currency: string | null = null
+
+  if (sortParams?.sortBy === 'minPrice') {
+    const {
+      data: {
+        shop: {
+          currency: { code },
+        },
+      },
+    } = await config.fetch(getShopCurrencyQuery, {
+      variables: { id: config.shopId },
+    })
+    currency = code
+  }
+
+  const { products } = await commerce.getAllProducts({
+    variables: {
+      ...getSearchVariables({ brandId, search, categoryId }),
+      ...(sortParams
+        ? {
+            sortBy: sortParams.sortBy as CatalogItemsQueryVariables['sortBy'],
+            sortOrder:
+              sortParams.sortOrder as CatalogItemsQueryVariables['sortOrder'],
+          }
+        : {}),
+      ...(currency ? { sortByPriceCurrencyCode: currency } : {}),
+    },
+    config,
+  })
+
+  res.status(200).json({
+    data: {
+      products,
+      found: !!products.length,
+    },
+  })
+}
+
+export default getProducts

packages/opencommerce/src/api/endpoints/catalog/products.ts

@@ -0,0 +1,20 @@
+import { CommerceAPI, createEndpoint, GetAPISchema } from '@vercel/commerce/api'
+import productsEndpoint from '@vercel/commerce/api/endpoints/catalog/products'
+import type { ProductsSchema } from '../../../types/product'
+import type { OpenCommerceAPI } from '../../index'
+import getProducts from './get-products'
+
+export type ProductsAPI = GetAPISchema<OpenCommerceAPI, ProductsSchema>
+
+export type ProductsEndpoint = ProductsAPI['endpoint']
+
+export const handlers: ProductsEndpoint['handlers'] = {
+  getProducts,
+}
+
+const productsApi = createEndpoint<ProductsAPI>({
+  handler: productsEndpoint,
+  handlers,
+})
+
+export default productsApi

packages/opencommerce/src/api/endpoints/checkout/get-checkout.ts

@@ -0,0 +1 @@
+export default function noopApi(...args: any[]): void {}

packages/opencommerce/src/api/endpoints/checkout/index.ts

@@ -0,0 +1,23 @@
+import { GetAPISchema, createEndpoint } from '@vercel/commerce/api'
+import checkoutEndpoint from '@vercel/commerce/api/endpoints/checkout'
+import type { CheckoutSchema } from '../../../types/checkout'
+import type { OpenCommerceAPI } from '../..'
+
+import submitCheckout from './submit-checkout'
+import getCheckout from './get-checkout'
+
+export type CheckoutAPI = GetAPISchema<OpenCommerceAPI, CheckoutSchema>
+
+export type CheckoutEndpoint = CheckoutAPI['endpoint']
+
+export const handlers: CheckoutEndpoint['handlers'] = {
+  submitCheckout,
+  getCheckout,
+}
+
+const checkoutApi = createEndpoint<CheckoutAPI>({
+  handler: checkoutEndpoint,
+  handlers,
+})
+
+export default checkoutApi

packages/opencommerce/src/api/endpoints/checkout/submit-checkout.ts

@@ -0,0 +1,65 @@
+import { LineItem } from '../../../types/cart'
+import placeOrder from '../../mutations/place-order'
+import setEmailOnAnonymousCart from '../../mutations/set-email-on-anonymous-cart'
+import getCartCookie from '../../utils/get-cart-cookie'
+import type { CheckoutEndpoint } from '.'
+
+const submitCheckout: CheckoutEndpoint['handlers']['submitCheckout'] = async ({
+  res,
+  body: { item, cartId },
+  config: { fetch, shopId, anonymousCartTokenCookie, cartCookie },
+  req: { cookies },
+}) => {
+  await fetch(setEmailOnAnonymousCart, {
+    variables: {
+      input: {
+        cartId,
+        cartToken: cookies[anonymousCartTokenCookie],
+        email: 'opencommerce@test.com',
+      },
+    },
+  })
+
+  const { data } = await fetch(placeOrder, {
+    variables: {
+      input: {
+        payments: {
+          data: { fullName: 'Open Commerce Demo Site' },
+          amount: item.checkout.cart.checkout.summary.total.amount,
+          method: 'iou_example',
+        },
+        order: {
+          cartId,
+          currencyCode: item.checkout.cart.currency.code,
+          email: 'opencommerce@test.com',
+          shopId,
+          fulfillmentGroups: {
+            shopId,
+            data: item.checkout.cart.checkout.fulfillmentGroups[0].data,
+            items: item.checkout.cart.lineItems.map((item: LineItem) => ({
+              price: item.variant.price,
+              quantity: item.quantity,
+              productConfiguration: {
+                productId: item.productId,
+                productVariantId: item.variantId,
+              },
+            })),
+            type: item.checkout.cart.checkout.fulfillmentGroups[0].type,
+            selectedFulfillmentMethodId:
+              item.checkout.cart.checkout.fulfillmentGroups[0]
+                .selectedFulfillmentOption.fulfillmentMethod._id,
+          },
+        },
+      },
+    },
+  })
+
+  res.setHeader('Set-Cookie', [
+    getCartCookie(cartCookie),
+    getCartCookie(anonymousCartTokenCookie),
+  ])
+
+  res.status(200).json({ data: null, errors: [] })
+}
+
+export default submitCheckout

packages/opencommerce/src/api/endpoints/customer/address/add-item.ts

@@ -0,0 +1,73 @@
+import setShippingAddressOnCartMutation from '../../../mutations/add-shipping-address'
+import type { CustomerAddressEndpoint } from '.'
+import updateFulfillmentOptions from '../../../mutations/update-fulfillment-options'
+import selectFulfillmentOptions from '../../../mutations/select-fulfillment-options'
+
+const addItem: CustomerAddressEndpoint['handlers']['addItem'] = async ({
+  res,
+  body: { item, cartId },
+  config: { fetch, anonymousCartTokenCookie },
+  req: { cookies },
+}) => {
+  // Return an error if no cart is present
+  if (!cartId) {
+    return res.status(400).json({
+      data: null,
+      errors: [{ message: 'Cookie not found' }],
+    })
+  }
+
+  // Register address
+  const {
+    data: { setShippingAddressOnCart },
+  } = await fetch(setShippingAddressOnCartMutation, {
+    variables: {
+      input: {
+        address: {
+          address1: item.streetNumber || 'NextJS storefront',
+          country: item.country,
+          fullName: `${item.firstName || 'Test'} ${
+            item.lastName || 'Account'
+          }}`,
+          city: item.city || 'LA',
+          phone: '0123456789',
+          postal: item.zipCode || '1234567',
+          region: item.city || 'LA',
+        },
+        cartId,
+        cartToken: cookies[anonymousCartTokenCookie],
+      },
+    },
+  })
+
+  const {
+    data: { updateFulfillmentOptionsForGroup },
+  } = await fetch(updateFulfillmentOptions, {
+    variables: {
+      input: {
+        cartId,
+        fulfillmentGroupId:
+          setShippingAddressOnCart.cart.checkout.fulfillmentGroups[0]._id,
+      },
+    },
+  })
+
+  await fetch(selectFulfillmentOptions, {
+    variables: {
+      input: {
+        cartId,
+        cartToken: cookies[anonymousCartTokenCookie],
+        fulfillmentGroupId:
+          updateFulfillmentOptionsForGroup.cart.checkout.fulfillmentGroups[0]
+            ._id,
+        fulfillmentMethodId:
+          updateFulfillmentOptionsForGroup.cart.checkout.fulfillmentGroups[0]
+            .availableFulfillmentOptions[0].fulfillmentMethod._id,
+      },
+    },
+  })
+
+  return res.status(200).json({ data: null, errors: [] })
+}
+
+export default addItem

packages/opencommerce/src/api/endpoints/customer/address/get-addresses.ts

@@ -0,0 +1,9 @@
+import type { CustomerAddressEndpoint } from '.'
+
+const getCards: CustomerAddressEndpoint['handlers']['getAddresses'] = async ({
+  res,
+}) => {
+  return res.status(200).json({ data: null, errors: [] })
+}
+
+export default getCards

packages/opencommerce/src/api/endpoints/customer/address/index.ts

@@ -0,0 +1,33 @@
+import type {
+  CustomerAddressSchema,
+  CustomerAddressTypes,
+} from '../../../../types/customer/address'
+import type { OpenCommerceAPI } from '../../..'
+
+import { GetAPISchema, createEndpoint } from '@vercel/commerce/api'
+import customerAddressEndpoint from '@vercel/commerce/api/endpoints/customer/address'
+
+import getAddresses from './get-addresses'
+import addItem from './add-item'
+import updateItem from './update-item'
+import removeItem from './remove-item'
+
+export type CustomerAddressAPI = GetAPISchema<
+  OpenCommerceAPI,
+  CustomerAddressSchema<CustomerAddressTypes>
+>
+export type CustomerAddressEndpoint = CustomerAddressAPI['endpoint']
+
+export const handlers: CustomerAddressEndpoint['handlers'] = {
+  getAddresses,
+  addItem,
+  updateItem,
+  removeItem,
+}
+
+const customerAddressApi = createEndpoint<CustomerAddressAPI>({
+  handler: customerAddressEndpoint,
+  handlers,
+})
+
+export default customerAddressApi

packages/opencommerce/src/api/endpoints/customer/address/remove-item.ts

@@ -0,0 +1,9 @@
+import type { CustomerAddressEndpoint } from '.'
+
+const removeItem: CustomerAddressEndpoint['handlers']['removeItem'] = async ({
+  res,
+}) => {
+  return res.status(200).json({ data: null, errors: [] })
+}
+
+export default removeItem

packages/opencommerce/src/api/endpoints/customer/address/update-item.ts

@@ -0,0 +1,34 @@
+import selectFulfillmentOptions from '../../../mutations/select-fulfillment-options'
+import type { CustomerAddressEndpoint } from '.'
+
+const updateItem: CustomerAddressEndpoint['handlers']['updateItem'] = async ({
+  res,
+  body: { item, cartId },
+  config: { fetch, anonymousCartTokenCookie },
+  req: { cookies },
+}) => {
+  // Return an error if no cart is present
+  if (!cartId) {
+    return res.status(400).json({
+      data: null,
+      errors: [{ message: 'Cookie not found' }],
+    })
+  }
+
+  if (item.shippingMethod) {
+    await fetch(selectFulfillmentOptions, {
+      variables: {
+        input: {
+          cartId,
+          cartToken: cookies[anonymousCartTokenCookie],
+          fulfillmentGroupId: item.shippingMethod.fulfillmentGroupId,
+          fulfillmentMethodId: item.shippingMethod.id,
+        },
+      },
+    })
+  }
+
+  return res.status(200).json({ data: null, errors: [] })
+}
+
+export default updateItem

packages/opencommerce/src/api/endpoints/customer/card.ts

@@ -0,0 +1 @@
+export default function noopApi(...args: any[]): void {}

packages/opencommerce/src/api/endpoints/customer/index.ts

@@ -0,0 +1 @@
+export default function noopApi(...args: any[]): void {}

packages/opencommerce/src/api/endpoints/login/index.ts

@@ -0,0 +1 @@
+export default function noopApi(...args: any[]): void {}

packages/opencommerce/src/api/endpoints/logout/index.ts

@@ -0,0 +1 @@
+export default function noopApi(...args: any[]): void {}

packages/opencommerce/src/api/endpoints/signup/index.ts

@@ -0,0 +1 @@
+export default function noopApi(...args: any[]): void {}

packages/opencommerce/src/api/endpoints/wishlist/index.tsx

@@ -0,0 +1 @@
+export default function noopApi(...args: any[]): void {}

packages/opencommerce/src/api/index.ts

@@ -0,0 +1,47 @@
+import {
+  CommerceAPI,
+  CommerceAPIConfig,
+  getCommerceApi as commerceApi,
+} from '@vercel/commerce/api'
+import createFetchGraphqlApi from './utils/fetch-grapql-api'
+
+import * as operations from './operations'
+
+const API_URL = process.env.OPENCOMMERCE_STOREFRONT_API_URL
+const SHOP_ID = process.env.OPENCOMMERCE_PRIMARY_SHOP_ID
+
+if (!API_URL) {
+  throw new Error(
+    `The environment variable OPENCOMMERCE_STOREFRONT_API_URL is missing and it's required to access your store`
+  )
+}
+
+export interface OpenCommerceConfig extends CommerceAPIConfig {
+  shopId: string
+  anonymousCartTokenCookie: string
+}
+
+const ONE_DAY = 60 * 60 * 24
+
+const config: OpenCommerceConfig = {
+  commerceUrl: API_URL,
+  apiToken: '',
+  shopId: SHOP_ID ?? '',
+  customerCookie: 'opencommerce_customerToken',
+  cartCookie: 'opencommerce_cartId',
+  cartCookieMaxAge: ONE_DAY * 30,
+  anonymousCartTokenCookie: 'opencommerce_anonymousCartToken',
+  fetch: createFetchGraphqlApi(() => getCommerceApi().getConfig()),
+}
+
+export const provider = { config, operations }
+
+export type Provider = typeof provider
+
+export type OpenCommerceAPI<P extends Provider = Provider> = CommerceAPI<P>
+
+export function getCommerceApi<P extends Provider>(
+  customProvider: P = provider as any
+): OpenCommerceAPI<P> {
+  return commerceApi(customProvider)
+}

packages/opencommerce/src/api/mutations/add-cart-item.ts

@@ -0,0 +1,24 @@
+import {
+  cartPayloadFragment,
+  incorrectPriceFailureDetailsFragment,
+  minOrderQuantityFailureDetailsFragment,
+} from '../queries/get-cart-query'
+
+const addCartItemsMutation = /* GraphQL */ `
+  mutation addCartItemsMutation($input: AddCartItemsInput!) {
+    addCartItems(input: $input) {
+      cart {
+        ${cartPayloadFragment}
+      }
+      incorrectPriceFailures {
+        ${incorrectPriceFailureDetailsFragment}
+      }
+      minOrderQuantityFailures {
+        ${minOrderQuantityFailureDetailsFragment}
+      }
+      clientMutationId
+    }
+  }
+`
+
+export default addCartItemsMutation

packages/opencommerce/src/api/mutations/add-shipping-address.ts

@@ -0,0 +1,13 @@
+import { cartPayloadFragment } from '../queries/get-cart-query'
+
+const setShippingAddressOnCartMutation = `
+  mutation setShippingAddressOnCartMutation($input: SetShippingAddressOnCartInput!) {
+    setShippingAddressOnCart(input: $input) {
+      cart {
+        ${cartPayloadFragment}
+      }
+    }
+  }
+`
+
+export default setShippingAddressOnCartMutation

packages/opencommerce/src/api/mutations/authenticate.ts

@@ -0,0 +1,15 @@
+const authenticateMutation = /* GraphQL */ `
+  mutation authenticate(
+    $serviceName: String!
+    $params: AuthenticateParamsInput!
+  ) {
+    authenticate(serviceName: $serviceName, params: $params) {
+      sessionId
+      tokens {
+        refreshToken
+        accessToken
+      }
+    }
+  }
+`
+export default authenticateMutation

packages/opencommerce/src/api/mutations/create-cart.ts

@@ -0,0 +1,24 @@
+import {
+  cartPayloadFragment,
+  incorrectPriceFailureDetailsFragment,
+  minOrderQuantityFailureDetailsFragment,
+} from '../queries/get-cart-query'
+
+const createCartMutation = /* GraphQL */ `
+  mutation createCartMutation($input: CreateCartInput!) {
+    createCart(input: $input) {
+      cart {
+        ${cartPayloadFragment}
+      }
+      incorrectPriceFailures {
+        ${incorrectPriceFailureDetailsFragment}
+      }
+      minOrderQuantityFailures {
+        ${minOrderQuantityFailureDetailsFragment}
+      }
+      clientMutationId
+      token
+    }
+  }
+`
+export default createCartMutation

packages/opencommerce/src/api/mutations/place-order.ts

@@ -0,0 +1,211 @@
+const orderCommon = `
+_id
+  account {
+    _id
+  }
+  cartId
+  createdAt
+  displayStatus(language: $language)
+  email
+  fulfillmentGroups {
+    _id
+    data {
+      ... on ShippingOrderFulfillmentGroupData {
+        shippingAddress {
+          _id
+          address1
+          address2
+          city
+          company
+          country
+          fullName
+          isCommercial
+          isShippingDefault
+          phone
+          postal
+          region
+        }
+      }
+    }
+    items {
+      nodes {
+        _id
+        addedAt
+        createdAt
+        imageURLs {
+          large
+          medium
+          original
+          small
+          thumbnail
+        }
+        isTaxable
+        optionTitle
+        parcel {
+          containers
+          distanceUnit
+          height
+          length
+          massUnit
+          weight
+          width
+        }
+        price {
+          amount
+          currency {
+            code
+          }
+          displayAmount
+        }
+        productConfiguration {
+          productId
+          productVariantId
+        }
+        productSlug
+        productType
+        productVendor
+        productTags {
+          nodes {
+            name
+          }
+        }
+        quantity
+        shop {
+          _id
+        }
+        subtotal {
+          amount
+          currency {
+            code
+          }
+          displayAmount
+        }
+        taxCode
+        title
+        updatedAt
+        variantTitle
+      }
+    }
+    selectedFulfillmentOption {
+      fulfillmentMethod {
+        _id
+        carrier
+        displayName
+        fulfillmentTypes
+        group
+        name
+      }
+      handlingPrice {
+        amount
+        currency {
+          code
+        }
+        displayAmount
+      }
+      price {
+        amount
+        currency {
+          code
+        }
+        displayAmount
+      }
+    }
+    shop {
+      _id
+    }
+    summary {
+      fulfillmentTotal {
+        amount
+        displayAmount
+      }
+      itemTotal {
+        amount
+        displayAmount
+      }
+      surchargeTotal {
+        amount
+        displayAmount
+      }
+      taxTotal {
+        amount
+        displayAmount
+      }
+      total {
+        amount
+        displayAmount
+      }
+    }
+    tracking
+    type
+  }
+  payments {
+    _id
+    amount {
+      displayAmount
+    }
+    billingAddress {
+      address1
+      address2
+      city
+      company
+      country
+      fullName
+      isCommercial
+      phone
+      postal
+      region
+    }
+    displayName
+    method {
+      name
+    }
+  }
+  referenceId
+  shop {
+    _id
+    currency {
+      code
+    }
+  }
+  status
+  summary {
+    fulfillmentTotal {
+      amount
+      displayAmount
+    }
+    itemTotal {
+      amount
+      displayAmount
+    }
+    surchargeTotal {
+      amount
+      displayAmount
+    }
+    taxTotal {
+      amount
+      displayAmount
+    }
+    total {
+      amount
+      displayAmount
+    }
+  }
+  totalItemQuantity
+  updatedAt
+`
+
+const placeOrder = /* GraphQL */ `
+  mutation placeOrderMutation(
+    $input: PlaceOrderInput!
+    $language: String! = "en"
+  ) {
+    placeOrder(input: $input) {
+      orders {
+        ${orderCommon}
+      }
+      token
+    }
+  }
+`
+
+export default placeOrder

packages/opencommerce/src/api/mutations/remove-cart-item.ts

@@ -0,0 +1,13 @@
+import { cartPayloadFragment } from '../queries/get-cart-query'
+
+const removeCartItemsMutation = `
+  mutation removeCartItemsMutation($input: RemoveCartItemsInput!) {
+    removeCartItems(input: $input) {
+      cart {
+        ${cartPayloadFragment}
+      }
+    }
+  }
+`
+
+export default removeCartItemsMutation

packages/opencommerce/src/api/mutations/select-fulfillment-options.ts

@@ -0,0 +1,14 @@
+import { cartPayloadFragment } from '../queries/get-cart-query'
+
+const selectFulfillmentOptions = /* GraphQL */ `
+  mutation setFulfillmentOptionCartMutation(
+    $input: SelectFulfillmentOptionForGroupInput!
+  ) {
+    selectFulfillmentOptionForGroup(input: $input) {
+      cart {
+        ${cartPayloadFragment}
+      }
+    }
+  }
+`
+export default selectFulfillmentOptions

packages/opencommerce/src/api/mutations/set-email-on-anonymous-cart.ts

@@ -0,0 +1,15 @@
+import { cartPayloadFragment } from '../queries/get-cart-query'
+
+const setEmailOnAnonymousCart = /* GraphQL */ `
+  mutation setEmailOnAnonymousCartMutation(
+    $input: SetEmailOnAnonymousCartInput!
+  ) {
+    setEmailOnAnonymousCart(input: $input) {
+      cart {
+        ${cartPayloadFragment}
+      }
+    }
+  }
+`
+
+export default setEmailOnAnonymousCart

packages/opencommerce/src/api/mutations/update-cart-item-quantity.ts

@@ -0,0 +1,13 @@
+import { cartPayloadFragment } from '../queries/get-cart-query'
+
+const updateCartItemsQuantityMutation = /* GraphQL */ `
+  mutation updateCartItemsQuantity($updateCartItemsQuantityInput: UpdateCartItemsQuantityInput!) {
+    updateCartItemsQuantity(input: $updateCartItemsQuantityInput) {
+      cart {
+        ${cartPayloadFragment}
+      }
+    }
+  }
+`
+
+export default updateCartItemsQuantityMutation

packages/opencommerce/src/api/mutations/update-fulfillment-options.ts

@@ -0,0 +1,15 @@
+import { cartPayloadFragment } from '../queries/get-cart-query'
+
+const updateFulfillmentOptions = /* GraphQL */ `
+  mutation updateFulfillmentOptionsForGroup(
+    $input: UpdateFulfillmentOptionsForGroupInput!
+  ) {
+    updateFulfillmentOptionsForGroup(input: $input) {
+      cart {
+        ${cartPayloadFragment}
+      }
+    }
+  }
+`
+
+export default updateFulfillmentOptions

packages/opencommerce/src/api/operations/get-all-pages.ts

@@ -0,0 +1,47 @@
+import type {
+  OperationContext,
+  OperationOptions,
+} from '@vercel/commerce/api/operations'
+import { GetAllPagesOperation } from '../../types/page'
+
+import type { OpenCommerceConfig, Provider } from '../index'
+
+export type Page = { url: string }
+export type GetAllPagesResult = { pages: Page[] }
+
+export default function getAllPagesOperation({
+  commerce,
+}: OperationContext<Provider>) {
+  async function getAllPages<T extends GetAllPagesOperation>(opts?: {
+    config?: Partial<OpenCommerceConfig>
+    preview?: boolean
+  }): Promise<T['data']>
+
+  async function getAllPages<T extends GetAllPagesOperation>(
+    opts: {
+      config?: Partial<OpenCommerceConfig>
+      preview?: boolean
+    } & OperationOptions
+  ): Promise<T['data']>
+
+  async function getAllPages<T extends GetAllPagesOperation>(
+    opts: {
+      config?: Partial<OpenCommerceConfig>
+      preview?: boolean
+    } & OperationOptions
+  ): Promise<T['data']>
+
+  async function getAllPages<T extends GetAllPagesOperation>({
+    config,
+    preview,
+  }: {
+    url?: string
+    config?: Partial<OpenCommerceConfig>
+    preview?: boolean
+  } = {}): Promise<GetAllPagesResult> {
+    return Promise.resolve({
+      pages: [],
+    })
+  }
+  return getAllPages
+}

packages/opencommerce/src/api/operations/get-all-product-paths.ts

@@ -0,0 +1,63 @@
+import type {
+  OperationContext,
+  OperationOptions,
+} from '@vercel/commerce/api/operations'
+import type {
+  CatalogItemsQuery,
+  CatalogItemsQueryVariables,
+  CatalogItemProduct,
+} from '../../../schema'
+import type { GetAllProductPathsOperation } from '../../types/product'
+import type { RecursivePartial, RecursiveRequired } from '../utils/types'
+import filterEdges from '../utils/filter-edges'
+import { OpenCommerceConfig, Provider } from '..'
+import getAllProductPathsQuery from '../queries/get-all-product-paths-query'
+
+export default function getAllProductPathsOperation({
+  commerce,
+}: OperationContext<Provider>) {
+  async function getAllProductPaths<
+    T extends GetAllProductPathsOperation
+  >(opts?: {
+    variables?: CatalogItemsQueryVariables
+    config?: OpenCommerceConfig
+  }): Promise<T['data']>
+
+  async function getAllProductPaths<T extends GetAllProductPathsOperation>(
+    opts: {
+      variables?: CatalogItemsQueryVariables
+      config?: OpenCommerceConfig
+    } & OperationOptions
+  ): Promise<T['data']>
+
+  async function getAllProductPaths<T extends GetAllProductPathsOperation>({
+    query = getAllProductPathsQuery,
+    variables,
+    config,
+  }: {
+    query?: string
+    variables?: CatalogItemsQueryVariables
+    config?: OpenCommerceConfig
+  } = {}): Promise<T['data']> {
+    const { fetch, shopId } = commerce.getConfig(config)
+    // RecursivePartial forces the method to check for every prop in the data, which is
+    // required in case there's a custom `query`
+    const { data } = await fetch<
+      RecursivePartial<CatalogItemsQuery>,
+      CatalogItemsQueryVariables
+    >(query, {
+      variables: { ...variables, shopIds: [shopId] },
+    })
+
+    const products = data.catalogItems?.edges
+
+    return {
+      products: filterEdges(products as RecursiveRequired<typeof products>).map(
+        ({ node }) => ({
+          path: `/${(node as CatalogItemProduct).product!.slug}`,
+        })
+      ),
+    }
+  }
+  return getAllProductPaths
+}

packages/opencommerce/src/api/operations/get-all-products.ts

@@ -0,0 +1,62 @@
+import type { OperationContext } from '@vercel/commerce/api/operations'
+import type { GetAllProductsOperation } from '../../types/product'
+import {
+  CatalogItemProduct,
+  CatalogItemsQuery,
+  CatalogItemsQueryVariables,
+} from '../../../schema'
+import catalogItemsQuery from '../queries/get-all-products-query'
+import type { OpenCommerceConfig, Provider } from '..'
+import { normalizeProduct } from '../../utils/normalize'
+import { RecursivePartial, RecursiveRequired } from '../utils/types'
+import filterEdges from '../utils/filter-edges'
+
+export default function getAllProductsOperation({
+  commerce,
+}: OperationContext<Provider>) {
+  async function getAllProducts<T extends GetAllProductsOperation>(opts?: {
+    variables?: Omit<CatalogItemsQueryVariables, 'shopIds'>
+    config?: Partial<OpenCommerceConfig>
+    preview?: boolean
+  }): Promise<T['data']>
+
+  async function getAllProducts<T extends GetAllProductsOperation>({
+    query = catalogItemsQuery,
+    variables,
+    config,
+  }: {
+    query?: string
+    variables?: Omit<CatalogItemsQueryVariables, 'shopIds'>
+    config?: Partial<OpenCommerceConfig>
+    preview?: boolean
+  } = {}): Promise<T['data']> {
+    const { fetch, locale, shopId } = commerce.getConfig(config)
+
+    const { data } = await fetch<
+      RecursivePartial<CatalogItemsQuery>,
+      CatalogItemsQueryVariables
+    >(
+      query,
+      { variables: { ...variables, shopIds: [shopId] } },
+      {
+        ...(locale && {
+          headers: {
+            'Accept-Language': locale,
+          },
+        }),
+      }
+    )
+
+    const edges = data.catalogItems?.edges
+    return {
+      products: filterEdges(edges as RecursiveRequired<typeof edges>).map(
+        (item) =>
+          normalizeProduct(
+            item?.node ? (item.node as CatalogItemProduct) : null
+          )
+      ),
+    }
+  }
+
+  return getAllProducts
+}

packages/opencommerce/src/api/operations/get-customer-wishlist.ts

@@ -0,0 +1,6 @@
+export default function getCustomerWishlistOperation() {
+  function getCustomerWishlist(): any {
+    return { wishlist: {} }
+  }
+  return getCustomerWishlist
+}

packages/opencommerce/src/api/operations/get-page.ts

@@ -0,0 +1,32 @@
+import type {
+  OperationContext,
+  OperationOptions,
+} from '@vercel/commerce/api/operations'
+import { GetPageOperation } from '../../types/page'
+import { Provider, OpenCommerceConfig } from '..'
+
+type Page = any
+type GetPageResult = { page?: Page }
+
+export default function getPageOperation({
+  commerce,
+}: OperationContext<Provider>) {
+  async function getPage<T extends GetPageOperation>(opts: {
+    variables: T['variables']
+    config?: Partial<OpenCommerceConfig>
+    preview?: boolean
+  }): Promise<T['data']>
+
+  async function getPage<T extends GetPageOperation>(
+    opts: {
+      variables: T['variables']
+      config?: Partial<OpenCommerceConfig>
+      preview?: boolean
+    } & OperationOptions
+  ): Promise<T['data']>
+
+  function getPage(): Promise<GetPageResult> {
+    return Promise.resolve({})
+  }
+  return getPage
+}

packages/opencommerce/src/api/operations/get-product.ts

@@ -0,0 +1,68 @@
+import type {
+  OperationContext,
+  OperationOptions,
+} from '@vercel/commerce/api/operations'
+import { GetProductOperation } from '../../types/product'
+import { normalizeProduct } from '../../utils/normalize'
+import type { OpenCommerceConfig, Provider } from '..'
+import {
+  CatalogItemProduct,
+  GetProductBySlugQuery,
+  GetProductBySlugQueryVariables,
+} from '../../../schema'
+import getProductQuery from '../queries/get-product-query'
+
+export default function getProductOperation({
+  commerce,
+}: OperationContext<Provider>) {
+  async function getProduct<T extends GetProductOperation>(opts: {
+    variables: GetProductBySlugQueryVariables
+    config?: Partial<OpenCommerceConfig>
+    preview?: boolean
+  }): Promise<T['data']>
+
+  async function getProduct<T extends GetProductOperation>(
+    opts: {
+      variables: GetProductBySlugQueryVariables
+      config?: Partial<OpenCommerceConfig>
+      preview?: boolean
+    } & OperationOptions
+  ): Promise<T['data']>
+
+  async function getProduct<T extends GetProductOperation>({
+    query = getProductQuery,
+    variables,
+    config: cfg,
+  }: {
+    query?: string
+    variables: GetProductBySlugQueryVariables
+    config?: Partial<OpenCommerceConfig>
+    preview?: boolean
+  }): Promise<T['data']> {
+    const { fetch, locale } = commerce.getConfig(cfg)
+
+    const {
+      data: { catalogItemProduct },
+    } = await fetch<GetProductBySlugQuery, GetProductBySlugQueryVariables>(
+      query,
+      {
+        variables,
+      },
+      {
+        ...(locale && {
+          headers: {
+            'Accept-Language': locale,
+          },
+        }),
+      }
+    )
+
+    return {
+      ...(catalogItemProduct && {
+        product: normalizeProduct(catalogItemProduct as CatalogItemProduct),
+      }),
+    }
+  }
+
+  return getProduct
+}

packages/opencommerce/src/api/operations/get-site-info.ts

@@ -0,0 +1,78 @@
+import {
+  OperationContext,
+  OperationOptions,
+} from '@vercel/commerce/api/operations'
+import {
+  GetTagsQuery,
+  GetAllProductVendorsQuery,
+  GetTagsQueryVariables,
+  GetAllProductVendorsQueryVariables,
+} from '../../../schema'
+import getTagsQuery from '../queries/get-tags-query'
+import { GetSiteInfoOperation, OCCategory, SiteTypes } from '../../types/site'
+import {
+  normalizeCategory,
+  normalizeNavigation,
+  normalizeVendors,
+} from '../../utils/normalize'
+import type { OpenCommerceConfig, Provider } from '..'
+import filterEdges from '../utils/filter-edges'
+import getAllProductVendors from '../queries/get-vendors-query'
+import getPrimaryShopQuery from '../queries/get-primary-shop-query'
+
+export default function getSiteInfoOperation({
+  commerce,
+}: OperationContext<Provider>) {
+  async function getSiteInfo<T extends GetSiteInfoOperation>(opts?: {
+    config?: Partial<OpenCommerceConfig>
+    preview?: boolean
+  }): Promise<T['data']>
+
+  async function getSiteInfo<T extends GetSiteInfoOperation>(
+    opts: {
+      config?: Partial<OpenCommerceConfig>
+      preview?: boolean
+    } & OperationOptions
+  ): Promise<T['data']>
+
+  async function getSiteInfo<T extends GetSiteInfoOperation>({
+    config: cfg,
+  }: {
+    query?: string
+    config?: Partial<OpenCommerceConfig>
+    preview?: boolean
+  } = {}): Promise<T['data']> {
+    const { fetch, shopId } = commerce.getConfig(cfg)
+
+    const [categoriesResponse, vendorsResponse, primaryShopResponse] =
+      await Promise.all([
+        await fetch<GetTagsQuery, GetTagsQueryVariables>(getTagsQuery, {
+          variables: { first: 250, shopId },
+        }),
+        await fetch<
+          GetAllProductVendorsQuery,
+          GetAllProductVendorsQueryVariables
+        >(getAllProductVendors, { variables: { shopIds: [shopId] } }),
+        await fetch(getPrimaryShopQuery),
+      ])
+
+    const categories = filterEdges(categoriesResponse.data.tags?.edges).map(
+      (edge) => normalizeCategory(edge.node! as OCCategory)
+    )
+
+    const brands = [
+      ...new Set(filterEdges(vendorsResponse.data.vendors?.nodes)),
+    ].map(normalizeVendors)
+
+    const navigationItems =
+      primaryShopResponse.data.primaryShop.defaultNavigationTree.items ?? []
+
+    return {
+      categories,
+      brands,
+      navigation: normalizeNavigation(navigationItems),
+    }
+  }
+
+  return getSiteInfo
+}

packages/opencommerce/src/api/operations/index.ts

@@ -0,0 +1,7 @@
+export { default as getAllPages } from './get-all-pages'
+export { default as getPage } from './get-page'
+export { default as getAllProducts } from './get-all-products'
+export { default as getAllProductPaths } from './get-all-product-paths'
+export { default as getProduct } from './get-product'
+export { default as getSiteInfo } from './get-site-info'
+export { default as login } from './login'

packages/opencommerce/src/api/operations/login.ts

@@ -0,0 +1,53 @@
+import type { ServerResponse } from 'http'
+import type {
+  OperationContext,
+  OperationOptions,
+} from '@vercel/commerce/api/operations'
+import type { LoginOperation } from '../../types/login'
+import type { AuthenticateMutation } from '../../../schema'
+import type { RecursivePartial } from '../utils/types'
+import loginMutation from '../mutations/authenticate'
+import type { OpenCommerceConfig, Provider } from '..'
+
+export default function loginOperation({
+  commerce,
+}: OperationContext<Provider>) {
+  async function login<T extends LoginOperation>(opts: {
+    variables: T['variables']
+    config?: OpenCommerceConfig
+    res: ServerResponse
+  }): Promise<T['data']>
+
+  async function login<T extends LoginOperation>(
+    opts: {
+      variables: T['variables']
+      config?: OpenCommerceConfig
+      res: ServerResponse
+    } & OperationOptions
+  ): Promise<T['data']>
+
+  async function login<T extends LoginOperation>({
+    query = loginMutation,
+    variables,
+    res: response,
+    config: cfg,
+  }: {
+    query?: string
+    variables: T['variables']
+    res: ServerResponse
+    config?: OpenCommerceConfig
+  }): Promise<T['data']> {
+    const { fetch } = commerce.getConfig(cfg)
+
+    const { data } = await fetch<RecursivePartial<AuthenticateMutation>>(
+      query,
+      { variables }
+    )
+
+    return {
+      result: data.authenticate?.tokens?.accessToken ?? undefined,
+    }
+  }
+
+  return login
+}

packages/opencommerce/src/api/queries/get-all-product-paths-query.ts

@@ -0,0 +1,25 @@
+const getAllProductsPathsQuery = `
+  query catalogItems(
+    $first: ConnectionLimitInt = 250
+    $sortBy: CatalogItemSortByField = updatedAt
+    $shopIds: [ID]!
+  ) {
+    catalogItems(first: $first, sortBy: $sortBy, shopIds: $shopIds) {
+      pageInfo {
+        hasNextPage
+        hasPreviousPage
+      }
+      edges {
+        node {
+          ... on CatalogItemProduct {
+            product {
+              slug
+            }
+          }
+        }
+        cursor
+      }
+    }
+  }
+`
+export default getAllProductsPathsQuery

packages/opencommerce/src/api/queries/get-all-products-query.ts

@@ -0,0 +1,66 @@
+const catalogItemsQuery = /* GraphQL */ `
+  query catalogItems(
+    $first: ConnectionLimitInt = 250
+    $sortBy: CatalogItemSortByField = updatedAt
+    $sortOrder: SortOrder = desc
+    $sortByPriceCurrencyCode: String
+    $tagIds: [ID]
+    $shopIds: [ID]!
+    $searchQuery: String
+  ) {
+    catalogItems(
+      first: $first
+      sortBy: $sortBy
+      sortOrder: $sortOrder
+      tagIds: $tagIds
+      shopIds: $shopIds
+      searchQuery: $searchQuery
+      sortByPriceCurrencyCode: $sortByPriceCurrencyCode
+    ) {
+      pageInfo {
+        hasNextPage
+        hasPreviousPage
+      }
+      edges {
+        node {
+          _id
+          ... on CatalogItemProduct {
+            product {
+              _id
+              title
+              slug
+              description
+              vendor
+              isLowQuantity
+              isSoldOut
+              isBackorder
+              shop {
+                currency {
+                  code
+                }
+              }
+              pricing {
+                currency {
+                  code
+                }
+                displayPrice
+                minPrice
+                maxPrice
+              }
+              media {
+                URLs {
+                  thumbnail
+                  small
+                  medium
+                  large
+                  original
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+`
+export default catalogItemsQuery

packages/opencommerce/src/api/queries/get-anonymous-cart.ts

@@ -0,0 +1,11 @@
+import { cartQueryFragment } from './get-cart-query'
+
+export const getAnonymousCart = `
+  query anonymousCartByCartIdQuery($cartId: ID!, $cartToken: String!, $itemsAfterCursor: ConnectionCursor) {
+    cart: anonymousCartByCartId(cartId: $cartId, cartToken: $cartToken) {
+      ${cartQueryFragment}
+    }
+  }
+`
+
+export default getAnonymousCart

packages/opencommerce/src/api/queries/get-cart-by-accountId-query.ts

@@ -0,0 +1,11 @@
+import { cartQueryFragment } from './get-cart-query'
+
+const accountCartByAccountIdQuery = `
+  query accountCartByAccountIdQuery($accountId: ID!, $shopId: ID!, $itemsAfterCursor: ConnectionCursor) {
+    cart: accountCartByAccountId(accountId: $accountId, shopId: $shopId) {
+      ${cartQueryFragment}
+    }
+  }
+`
+
+export default accountCartByAccountIdQuery

packages/opencommerce/src/api/queries/get-cart-query.ts

@@ -0,0 +1,241 @@
+export const cartCommon = `
+  _id
+  createdAt
+  account {
+    _id
+    emailRecords {
+      address
+    }
+  }
+  shop {
+    _id
+    currency {
+      code
+    }
+  }
+  email
+  updatedAt
+  expiresAt
+  checkout {
+    fulfillmentGroups {
+      _id
+      type
+      data {
+        shippingAddress {
+          address1
+          address2
+          city
+          company
+          country
+          fullName
+          isBillingDefault
+          isCommercial
+          isShippingDefault
+          phone
+          postal
+          region
+        }
+      }
+      availableFulfillmentOptions {
+        price {
+          amount
+          displayAmount
+        }
+        fulfillmentMethod {
+          _id
+          name
+          displayName
+        }
+      }
+      selectedFulfillmentOption {
+        fulfillmentMethod {
+          _id
+          name
+          displayName
+        }
+        price {
+          amount
+          displayAmount
+        }
+        handlingPrice {
+          amount
+          displayAmount
+        }
+      }
+      shop {
+        _id
+      }
+      shippingAddress {
+        address1
+        address2
+        city
+        company
+        country
+        fullName
+        isBillingDefault
+        isCommercial
+        isShippingDefault
+        phone
+        postal
+        region
+      }
+    }
+    summary {
+      fulfillmentTotal {
+        displayAmount
+      }
+      itemTotal {
+        amount
+        displayAmount
+      }
+      surchargeTotal {
+        amount
+        displayAmount
+      }
+      taxTotal {
+        amount
+        displayAmount
+      }
+      total {
+        amount
+        currency {
+          code
+        }
+        displayAmount
+      }
+    }
+  }
+  totalItemQuantity
+`
+
+const cartItemConnectionFragment = `
+  pageInfo {
+    hasNextPage
+    endCursor
+  }
+  edges {
+    node {
+      _id
+      productConfiguration {
+        productId
+        productVariantId
+      }
+      addedAt
+      attributes {
+        label
+        value
+      }
+      createdAt
+      isBackorder
+      isLowQuantity
+      isSoldOut
+      imageURLs {
+        large
+        small
+        original
+        medium
+        thumbnail
+      }
+      metafields {
+        value
+        key
+      }
+      parcel {
+        length
+        width
+        weight
+        height
+      }
+      price {
+        amount
+        displayAmount
+        currency {
+          code
+        }
+      }
+      priceWhenAdded {
+        amount
+        displayAmount
+        currency {
+          code
+        }
+      }
+      productSlug
+      productType
+      quantity
+      shop {
+        _id
+      }
+      subtotal {
+        displayAmount
+      }
+      title
+      productTags {
+        nodes {
+          name
+        }
+      }
+      productVendor
+      variantTitle
+      optionTitle
+      updatedAt
+      inventoryAvailableToSell
+    }
+  }
+`
+
+export const cartPayloadFragment = `
+  ${cartCommon}
+  items {
+    ${cartItemConnectionFragment}
+  }
+`
+
+export const incorrectPriceFailureDetailsFragment = `
+  currentPrice {
+    amount
+    currency {
+      code
+    }
+    displayAmount
+  }
+  productConfiguration {
+    productId
+    productVariantId
+  }
+  providedPrice {
+    amount
+    currency {
+      code
+    }
+    displayAmount
+  }
+`
+
+export const minOrderQuantityFailureDetailsFragment = `
+  minOrderQuantity
+  productConfiguration {
+    productId
+    productVariantId
+  }
+  quantity
+`
+
+const getCartQuery = /* GraphQL */ `
+  query($checkoutId: ID!) {
+    node(id: $checkoutId) {
+      ... on Checkout {
+        ${cartCommon}
+      }
+    }
+  }
+`
+
+export const cartQueryFragment = `
+  ${cartCommon}
+  items(first: 20, after: $itemsAfterCursor) {
+    ${cartItemConnectionFragment}
+  }
+`
+
+export default getCartQuery

packages/opencommerce/src/api/queries/get-primary-shop-query.ts

@@ -0,0 +1,50 @@
+const getPrimaryShopQuery = /* GraphQL */ `
+  query primaryShop($language: String! = "en") {
+    primaryShop {
+      _id
+      currency {
+        code
+      }
+      defaultNavigationTree(language: $language) {
+        ...NavigationTreeFragment
+      }
+      description
+      name
+    }
+  }
+  fragment NavigationTreeFragment on NavigationTree {
+    _id
+    shopId
+    name
+    items {
+      navigationItem {
+        data {
+          ...NavigationItemFields
+        }
+      }
+      items {
+        navigationItem {
+          data {
+            ...NavigationItemFields
+          }
+        }
+        items {
+          navigationItem {
+            data {
+              ...NavigationItemFields
+            }
+          }
+        }
+      }
+    }
+  }
+  fragment NavigationItemFields on NavigationItemData {
+    contentForLanguage
+    classNames
+    url
+    isUrlRelative
+    shouldOpenInNewWindow
+  }
+`
+
+export default getPrimaryShopQuery

packages/opencommerce/src/api/queries/get-product-query.ts

@@ -0,0 +1,181 @@
+const getProductQuery = /* GraphQL */ `
+  query getProductBySlug($slug: String!) {
+    catalogItemProduct(slugOrId: $slug) {
+      product {
+        _id
+        productId
+        title
+        slug
+        description
+        vendor
+        isLowQuantity
+        isSoldOut
+        isBackorder
+        metafields {
+          description
+          key
+          namespace
+          scope
+          value
+          valueType
+        }
+        pricing {
+          currency {
+            code
+          }
+          displayPrice
+          minPrice
+          maxPrice
+        }
+        shop {
+          currency {
+            code
+          }
+        }
+        primaryImage {
+          URLs {
+            large
+            medium
+            original
+            small
+            thumbnail
+          }
+          priority
+          productId
+          variantId
+        }
+        media {
+          priority
+          productId
+          variantId
+          URLs {
+            thumbnail
+            small
+            medium
+            large
+            original
+          }
+        }
+        tags {
+          nodes {
+            name
+            slug
+            position
+          }
+        }
+        variants {
+          _id
+          variantId
+          attributeLabel
+          title
+          optionTitle
+          index
+          pricing {
+            compareAtPrice {
+              displayAmount
+            }
+            price
+            currency {
+              code
+            }
+            displayPrice
+          }
+          canBackorder
+          inventoryAvailableToSell
+          isBackorder
+          isSoldOut
+          isLowQuantity
+          options {
+            _id
+            variantId
+            attributeLabel
+            title
+            index
+            pricing {
+              compareAtPrice {
+                displayAmount
+              }
+              price
+              currency {
+                code
+              }
+              displayPrice
+            }
+            optionTitle
+            canBackorder
+            inventoryAvailableToSell
+            isBackorder
+            isSoldOut
+            isLowQuantity
+            media {
+              priority
+              productId
+              variantId
+              URLs {
+                thumbnail
+                small
+                medium
+                large
+                original
+              }
+            }
+            metafields {
+              description
+              key
+              namespace
+              scope
+              value
+              valueType
+            }
+            primaryImage {
+              URLs {
+                large
+                medium
+                original
+                small
+                thumbnail
+              }
+              priority
+              productId
+              variantId
+            }
+          }
+          media {
+            priority
+            productId
+            variantId
+            URLs {
+              thumbnail
+              small
+              medium
+              large
+              original
+            }
+          }
+          metafields {
+            description
+            key
+            namespace
+            scope
+            value
+            valueType
+          }
+          primaryImage {
+            URLs {
+              large
+              medium
+              original
+              small
+              thumbnail
+            }
+            priority
+            productId
+            variantId
+          }
+        }
+      }
+    }
+  }
+`
+
+export default getProductQuery

packages/opencommerce/src/api/queries/get-shop-currency-query.ts

@@ -0,0 +1,11 @@
+const getShopCurrencyQuery = /* GraphQL */ `
+  query getShopCurrency($id: ID!) {
+    shop(id: $id) {
+      currency {
+        code
+      }
+    }
+  }
+`
+
+export default getShopCurrencyQuery

packages/opencommerce/src/api/queries/get-tags-query.ts

@@ -0,0 +1,14 @@
+const getTagsQuery = /* GraphQL */ `
+  query getTags($first: ConnectionLimitInt!, $shopId: ID!) {
+    tags(first: $first, shopId: $shopId) {
+      edges {
+        node {
+          _id
+          displayTitle
+          slug
+        }
+      }
+    }
+  }
+`
+export default getTagsQuery

packages/opencommerce/src/api/queries/get-vendors-query.ts

@@ -0,0 +1,10 @@
+const getAllProductVendors = /* GraphQL */ `
+  query getAllProductVendors($shopIds: [ID]!) {
+    vendors(shopIds: $shopIds) {
+      nodes {
+        name
+      }
+    }
+  }
+`
+export default getAllProductVendors

packages/opencommerce/src/api/utils/fetch-grapql-api.ts

@@ -0,0 +1,39 @@
+import { FetcherError } from '@vercel/commerce/utils/errors'
+import type { GraphQLFetcher } from '@vercel/commerce/api'
+import type { OpenCommerceConfig } from '../index'
+import fetch from './fetch'
+
+const fetchGraphqlApi: (
+  getConfig: () => OpenCommerceConfig
+) => GraphQLFetcher =
+  (getConfig) =>
+  async (query: string, { variables, preview } = {}, fetchOptions) => {
+    // log.warn(query)
+    const config = getConfig()
+    const res = await fetch(config.commerceUrl + (preview ? '/preview' : ''), {
+      ...fetchOptions,
+      method: 'POST',
+      headers: {
+        ...fetchOptions?.headers,
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify({
+        query,
+        variables,
+      }),
+    })
+
+    const json = await res.json()
+    if (json.errors) {
+      throw new FetcherError({
+        errors: json.errors ?? [
+          { message: 'Failed to fetch OpenCommerce API' },
+        ],
+        status: res.status,
+      })
+    }
+
+    return { data: json.data, res }
+  }
+
+export default fetchGraphqlApi

packages/opencommerce/src/api/utils/fetch.ts

@@ -0,0 +1,3 @@
+import vercelFetch from '@vercel/fetch'
+
+export default vercelFetch()

packages/opencommerce/src/api/utils/filter-edges.ts

@@ -0,0 +1,5 @@
+export default function filterEdges<T>(
+  edges: (T | null | undefined)[] | null | undefined
+) {
+  return edges?.filter((edge): edge is T => !!edge) ?? []
+}

packages/opencommerce/src/api/utils/get-cart-cookie.ts

@@ -0,0 +1,20 @@
+import { serialize, CookieSerializeOptions } from 'cookie'
+
+export default function getCartCookie(
+  name: string,
+  cartId?: string,
+  maxAge?: number
+) {
+  const options: CookieSerializeOptions =
+    cartId && maxAge
+      ? {
+          maxAge,
+          expires: new Date(Date.now() + maxAge * 1000),
+          secure: process.env.NODE_ENV === 'production',
+          path: '/',
+          sameSite: 'lax',
+        }
+      : { maxAge: -1, path: '/' } // Removes the cookie
+
+  return serialize(name, cartId || '', options)
+}

packages/opencommerce/src/api/utils/get-search-variables.ts

@@ -0,0 +1,36 @@
+export type SearchProductsInput = {
+  search?: string
+  categoryId?: number | string
+  brandId?: number | string
+  locale?: string
+}
+
+const getSearchVariables = ({
+  brandId,
+  search,
+  categoryId,
+}: SearchProductsInput) => {
+  let searchQuery = ''
+  let tagIdsParam = {}
+
+  if (search) {
+    searchQuery += search
+  }
+
+  if (brandId) {
+    searchQuery += `${search ? ' ' : ''}${brandId}`
+  }
+
+  if (categoryId) {
+    tagIdsParam = {
+      tagIds: [categoryId],
+    }
+  }
+
+  return {
+    searchQuery,
+    ...tagIdsParam,
+  }
+}
+
+export default getSearchVariables

packages/opencommerce/src/api/utils/get-sort-variables.ts

@@ -0,0 +1,25 @@
+type SortByField = 'minPrice' | 'featured' | 'createdAt'
+
+const getSortVariables = (sort?: string) => {
+  if (!sort) return null
+  const [_sort, direction] = sort.split('-')
+
+  const SORT: { [key: string]: SortByField | undefined } = {
+    price: 'minPrice',
+    trending: 'featured',
+    latest: 'createdAt',
+  }
+
+  const sortValue = SORT[_sort]
+
+  if (sortValue && direction) {
+    return {
+      sortBy: sortValue,
+      sortOrder: direction,
+    }
+  }
+
+  return null
+}
+
+export default getSortVariables

packages/opencommerce/src/api/utils/types.ts

@@ -0,0 +1,7 @@
+export type RecursivePartial<T> = {
+  [P in keyof T]?: RecursivePartial<T[P]>
+}
+
+export type RecursiveRequired<T> = {
+  [P in keyof T]-?: RecursiveRequired<T[P]>
+}

packages/opencommerce/src/auth/index.ts

@@ -0,0 +1,3 @@
+export { default as useLogin } from './use-login'
+export { default as useLogout } from './use-logout'
+export { default as useSignup } from './use-signup'

packages/opencommerce/src/auth/use-login.tsx

@@ -0,0 +1,16 @@
+import { MutationHook } from '@vercel/commerce/utils/types'
+import useLogin, { UseLogin } from '@vercel/commerce/auth/use-login'
+
+export default useLogin as UseLogin<typeof handler>
+
+export const handler: MutationHook<any> = {
+  fetchOptions: {
+    query: '',
+  },
+  async fetcher() {
+    return null
+  },
+  useHook: () => () => {
+    return async function () {}
+  },
+}

packages/opencommerce/src/auth/use-logout.tsx

@@ -0,0 +1,17 @@
+import { MutationHook } from '@vercel/commerce/utils/types'
+import useLogout, { UseLogout } from '@vercel/commerce/auth/use-logout'
+
+export default useLogout as UseLogout<typeof handler>
+
+export const handler: MutationHook<any> = {
+  fetchOptions: {
+    query: '',
+  },
+  async fetcher() {
+    return null
+  },
+  useHook:
+    ({ fetch }) =>
+    () =>
+    async () => {},
+}

packages/opencommerce/src/auth/use-signup.tsx

@@ -0,0 +1,19 @@
+import { useCallback } from 'react'
+import useCustomer from '../customer/use-customer'
+import { MutationHook } from '@vercel/commerce/utils/types'
+import useSignup, { UseSignup } from '@vercel/commerce/auth/use-signup'
+
+export default useSignup as UseSignup<typeof handler>
+
+export const handler: MutationHook<any> = {
+  fetchOptions: {
+    query: '',
+  },
+  async fetcher() {
+    return null
+  },
+  useHook:
+    ({ fetch }) =>
+    () =>
+    () => {},
+}

packages/opencommerce/src/cart/index.ts

@@ -0,0 +1,4 @@
+export { default as useCart } from './use-cart'
+export { default as useAddItem } from './use-add-item'
+export { default as useRemoveItem } from './use-remove-item'
+export { default as useUpdateItem } from './use-update-item'

packages/opencommerce/src/cart/use-add-item.tsx

@@ -0,0 +1,43 @@
+import { useCallback } from 'react'
+import useAddItem, { UseAddItem } from '@vercel/commerce/cart/use-add-item'
+import type { AddItemHook } from '@vercel/commerce/types/cart'
+import { CommerceError } from '@vercel/commerce/utils/errors'
+import { MutationHook } from '@vercel/commerce/utils/types'
+import { CartTypes } from '../types/cart'
+import useCart from './use-cart'
+
+export default useAddItem as UseAddItem<typeof handler>
+
+export const handler: MutationHook<AddItemHook<CartTypes>> = {
+  fetchOptions: {
+    url: '/api/cart',
+    method: 'POST',
+  },
+  async fetcher({ input: item, options, fetch }) {
+    if (
+      item.quantity &&
+      (!Number.isInteger(item.quantity) || item.quantity! < 1)
+    ) {
+      throw new CommerceError({
+        message: 'The item quantity has to be a valid integer greater than 0',
+      })
+    }
+
+    const data = await fetch({ ...options, body: { item } })
+    return data
+  },
+  useHook:
+    ({ fetch }) =>
+    () => {
+      const { mutate } = useCart()
+
+      return useCallback(
+        async function addItem(input) {
+          const data = await fetch({ input })
+          await mutate(data, false)
+          return data
+        },
+        [fetch, mutate]
+      )
+    },
+}

packages/opencommerce/src/cart/use-cart.tsx

@@ -0,0 +1,33 @@
+import { useMemo } from 'react'
+import { SWRHook } from '@vercel/commerce/utils/types'
+import useCart, { UseCart } from '@vercel/commerce/cart/use-cart'
+import type { GetCartHook } from '@vercel/commerce/types/cart'
+import { CartTypes } from '../types/cart'
+
+export default useCart as UseCart<typeof handler>
+
+export const handler: SWRHook<GetCartHook<CartTypes>> = {
+  fetchOptions: {
+    url: '/api/cart',
+    method: 'GET',
+  },
+  useHook:
+    ({ useData }) =>
+    (input) => {
+      const response = useData({
+        swrOptions: { revalidateOnFocus: false, ...input?.swrOptions },
+      })
+      return useMemo(
+        () =>
+          Object.create(response, {
+            isEmpty: {
+              get() {
+                return (response.data?.lineItems.length ?? 0) <= 0
+              },
+              enumerable: true,
+            },
+          }),
+        [response]
+      )
+    },
+}

packages/opencommerce/src/cart/use-remove-item.tsx

@@ -0,0 +1,56 @@
+import { useCallback } from 'react'
+import {
+  HookFetcherContext,
+  MutationHook,
+  MutationHookContext,
+} from '@vercel/commerce/utils/types'
+import useRemoveItem, {
+  UseRemoveItem,
+} from '@vercel/commerce/cart/use-remove-item'
+import type {
+  LineItem,
+  RemoveItemHook,
+  Cart,
+} from '@vercel/commerce/types/cart'
+import { ValidationError } from '@vercel/commerce/utils/errors'
+import useCart from './use-cart'
+
+export type RemoveItemActionInput<T = any> = T extends LineItem
+  ? Partial<RemoveItemHook['actionInput']>
+  : RemoveItemHook['actionInput']
+
+export type RemoveItemFn<T = any> = T extends LineItem
+  ? (input?: RemoveItemActionInput<T>) => Promise<Cart | null | undefined>
+  : (input: RemoveItemActionInput<T>) => Promise<Cart | null>
+
+export default useRemoveItem as UseRemoveItem<typeof handler>
+
+export const handler: MutationHook<RemoveItemHook> = {
+  fetchOptions: {
+    url: '/api/cart',
+    method: 'DELETE',
+  },
+  async fetcher({ input: { itemId }, options, fetch }) {
+    return await fetch({ ...options, body: { itemId } })
+  },
+  useHook:
+    ({ fetch }: MutationHookContext<RemoveItemHook>) =>
+    <T extends LineItem | undefined = undefined>(ctx: { item?: T } = {}) => {
+      const { item } = ctx
+      const { mutate } = useCart()
+      const removeItem: RemoveItemFn<LineItem> = async (input) => {
+        const itemId = input?.id ?? item?.id
+        if (!itemId) {
+          throw new ValidationError({
+            message: 'Invalid input used for this operation',
+          })
+        }
+
+        const data = await fetch({ input: { itemId } })
+        await mutate(data, false)
+        return data
+      }
+
+      return useCallback(removeItem as RemoveItemFn<T>, [fetch, mutate])
+    },
+}

packages/opencommerce/src/cart/use-update-item.tsx

@@ -0,0 +1,76 @@
+import { useCallback } from 'react'
+import debounce from 'lodash.debounce'
+import { MutationHook, MutationHookContext } from '@vercel/commerce/utils/types'
+import useUpdateItem, {
+  UseUpdateItem,
+} from '@vercel/commerce/cart/use-update-item'
+import type { LineItem, UpdateItemHook } from '@vercel/commerce/types/cart'
+import { ValidationError } from '@vercel/commerce/utils/errors'
+import { handler as removeItemHandler } from './use-remove-item'
+import useCart from './use-cart'
+
+export type UpdateItemActionInput<T = any> = T extends LineItem
+  ? Partial<UpdateItemHook['actionInput']>
+  : UpdateItemHook['actionInput']
+
+export default useUpdateItem as UseUpdateItem<typeof handler>
+
+export const handler: MutationHook<UpdateItemHook> = {
+  fetchOptions: {
+    url: '/api/cart',
+    method: 'PUT',
+  },
+  async fetcher({ input: { itemId, item }, options, fetch }) {
+    if (Number.isInteger(item.quantity)) {
+      // Also allow the update hook to remove an item if the quantity is lower than 1
+      if (item.quantity! < 1) {
+        return removeItemHandler.fetcher!({
+          options: removeItemHandler.fetchOptions,
+          input: { itemId },
+          fetch,
+        })
+      }
+    } else if (item.quantity) {
+      throw new ValidationError({
+        message: 'The item quantity has to be a valid integer',
+      })
+    }
+
+    return await fetch({
+      ...options,
+      body: { itemId, item },
+    })
+  },
+  useHook:
+    ({ fetch }: MutationHookContext<UpdateItemHook>) =>
+    <T extends LineItem | undefined = undefined>(
+      ctx: { item?: T; wait?: number } = {}
+    ) => {
+      const { item, wait } = ctx
+      const { mutate } = useCart()
+
+      return useCallback(
+        debounce(async (input: UpdateItemActionInput) => {
+          const itemId = input.id ?? item?.id
+          const productId = input.productId ?? item?.productId
+          const variantId = input.productId ?? item?.variantId
+
+          if (!itemId || !productId || !variantId) {
+            throw new ValidationError({
+              message: 'Invalid input used for this operation',
+            })
+          }
+
+          const data = await fetch({
+            input: {
+              itemId,
+              item: { productId, variantId, quantity: input.quantity },
+            },
+          })
+          await mutate(data, false)
+          return data
+        }, wait ?? 500),
+        [fetch, mutate]
+      )
+    },
+}

packages/opencommerce/src/checkout/index.ts

@@ -0,0 +1,2 @@
+export { default as useCheckout } from './use-checkout'
+export { default as useSubmitCheckout } from './use-submit-checkout'

packages/opencommerce/src/checkout/use-checkout.tsx

@@ -0,0 +1,64 @@
+import type { GetCheckoutHook } from '@vercel/commerce/types/checkout'
+
+import { useMemo } from 'react'
+import { SWRHook } from '@vercel/commerce/utils/types'
+import useCheckout, {
+  UseCheckout,
+} from '@vercel/commerce/checkout/use-checkout'
+import useSubmitCheckout from './use-submit-checkout'
+import { useCheckoutContext } from '@components/checkout/context'
+import { useCart } from '../cart'
+
+export default useCheckout as UseCheckout<typeof handler>
+
+export const handler: SWRHook<GetCheckoutHook> = {
+  fetchOptions: {
+    query: '',
+    method: '',
+  },
+  useHook: () =>
+    function useHook() {
+      const { data: cart } = useCart()
+      const shippingTypeMethod =
+        cart?.checkout?.fulfillmentGroups &&
+        cart.checkout.fulfillmentGroups.find(
+          (group) => group?.type === 'shipping'
+        )
+      const hasShippingMethods =
+        !!shippingTypeMethod?.availableFulfillmentOptions.length
+
+      const { addressFields } = useCheckoutContext()
+
+      const { shippingMethod, ...restAddressFields } = addressFields
+
+      const hasEnteredAddress = Object.values(restAddressFields).some(
+        (fieldValue) => !!fieldValue
+      )
+
+      const response = useMemo(
+        () => ({
+          data: {
+            // example payment plugin does not need payment info
+            hasPayment: true,
+            hasShipping: hasEnteredAddress,
+            hasShippingMethods,
+            hasSelectedShippingMethod: !!shippingMethod?.id,
+          },
+        }),
+        [hasEnteredAddress, hasShippingMethods, shippingMethod]
+      )
+
+      return useMemo(
+        () =>
+          Object.create(response, {
+            submit: {
+              get() {
+                return useSubmitCheckout
+              },
+              enumerable: true,
+            },
+          }),
+        [response, useSubmitCheckout]
+      )
+    },
+}

packages/opencommerce/src/checkout/use-submit-checkout.ts

@@ -0,0 +1,32 @@
+import { useCallback } from 'react'
+
+import type { SubmitCheckoutHook } from '@vercel/commerce/types/checkout'
+import type { MutationHook } from '@vercel/commerce/utils/types'
+import useSubmitCheckout, {
+  UseSubmitCheckout,
+} from '@vercel/commerce/checkout/use-submit-checkout'
+
+export default useSubmitCheckout as UseSubmitCheckout<typeof handler>
+
+export const handler: MutationHook<SubmitCheckoutHook> = {
+  fetchOptions: {
+    url: '/api/checkout',
+    method: 'POST',
+  },
+  async fetcher({ input: item, options, fetch }) {
+    const data = await fetch({
+      ...options,
+      body: { item },
+    })
+    return data
+  },
+  useHook: ({ fetch }) =>
+    function useHook() {
+      return useCallback(async function onSubmitCheckout(input) {
+        const data = await fetch({
+          input,
+        })
+        return data
+      }, [])
+    },
+}

packages/opencommerce/src/commerce.config.json

@@ -0,0 +1,7 @@
+{
+  "provider": "opencommerce",
+  "features": {
+    "customCheckout": true,
+    "customNavigation": true
+  }
+}

packages/opencommerce/src/customer/address/index.ts

@@ -0,0 +1,2 @@
+export { default as useAddItem } from './use-add-item'
+export { default as useUpdateItem } from './use-update-item'

packages/opencommerce/src/customer/address/use-add-item.tsx

@@ -0,0 +1,37 @@
+import type { AddItemHook } from '@vercel/commerce/types/customer/address'
+import type { MutationHook } from '@vercel/commerce/utils/types'
+import { useCallback } from 'react'
+import useAddItem, {
+  UseAddItem,
+} from '@vercel/commerce/customer/address/use-add-item'
+import { useCheckoutContext } from '@components/checkout/context'
+import { CustomerAddressTypes } from '../../types/customer/address'
+
+export default useAddItem as UseAddItem<typeof handler>
+
+export const handler: MutationHook<AddItemHook<CustomerAddressTypes>> = {
+  fetchOptions: {
+    url: '/api/customer/address',
+    method: 'POST',
+  },
+  async fetcher({ input: item, options, fetch }) {
+    const data = await fetch({
+      ...options,
+      body: { item },
+    })
+
+    return data
+  },
+  useHook: ({ fetch }) =>
+    function useHook() {
+      const { setAddressFields, addressFields } = useCheckoutContext()
+      return useCallback(
+        async function addItem(input) {
+          await fetch({ input })
+          setAddressFields({ ...addressFields, ...input })
+          return undefined
+        },
+        [setAddressFields]
+      )
+    },
+}

packages/opencommerce/src/customer/address/use-update-item.tsx

@@ -0,0 +1,44 @@
+import type { UpdateItemHook } from '@vercel/commerce/types/customer/address'
+import type {
+  MutationHook,
+  MutationHookContext,
+} from '@vercel/commerce/utils/types'
+import { useCallback } from 'react'
+import useUpdateItem, {
+  UseUpdateItem,
+} from '@vercel/commerce/customer/address/use-update-item'
+import { useCheckoutContext } from '@components/checkout/context'
+import { CustomerAddressTypes } from '../../types/customer/address'
+
+export default useUpdateItem as UseUpdateItem<typeof handler>
+
+export const handler: MutationHook<UpdateItemHook<CustomerAddressTypes>> = {
+  fetchOptions: {
+    url: '/api/customer/address',
+    method: 'PUT',
+  },
+  async fetcher({ input: { item, itemId }, options, fetch }) {
+    const data = await fetch({
+      ...options,
+      body: { item, itemId },
+    })
+
+    return data
+  },
+  useHook: ({ fetch }) =>
+    function useHook() {
+      const { setAddressFields, addressFields } = useCheckoutContext()
+      return useCallback(
+        async function updateItem(input) {
+          const { id, ...rest } = input
+          await fetch({ input: { item: rest, itemId: id } })
+          setAddressFields({
+            ...addressFields,
+            shippingMethod: rest.shippingMethod,
+          })
+          return undefined
+        },
+        [setAddressFields]
+      )
+    },
+}

packages/opencommerce/src/customer/card/index.ts

@@ -0,0 +1,2 @@
+export { default as useAddItem } from './use-add-item'
+export { default as useCards } from './use-cards'

packages/opencommerce/src/customer/card/use-add-item.tsx

@@ -0,0 +1,27 @@
+import type { AddItemHook } from '@vercel/commerce/types/customer/card'
+import type { MutationHook } from '@vercel/commerce/utils/types'
+import { useCallback } from 'react'
+import useAddItem, {
+  UseAddItem,
+} from '@vercel/commerce/customer/card/use-add-item'
+import { useCheckoutContext } from '@components/checkout/context'
+
+export default useAddItem as UseAddItem<typeof handler>
+
+export const handler: MutationHook<AddItemHook> = {
+  fetchOptions: {
+    url: '',
+    method: '',
+  },
+  useHook: () =>
+    function useHook() {
+      const { setCardFields } = useCheckoutContext()
+      return useCallback(
+        async function addItem(input) {
+          setCardFields(input)
+          return undefined
+        },
+        [setCardFields]
+      )
+    },
+}

packages/opencommerce/src/customer/card/use-cards.ts

@@ -0,0 +1,32 @@
+import { useMemo } from 'react'
+import type { GetCardsHook } from '@vercel/commerce/types/customer/card'
+import { SWRHook } from '@vercel/commerce/utils/types'
+import useCard, { UseCards } from '@vercel/commerce/customer/card/use-cards'
+
+export default useCard as UseCards<typeof handler>
+
+export const handler: SWRHook<GetCardsHook> = {
+  fetchOptions: {
+    url: '/api/customer/card',
+    method: 'GET',
+  },
+  useHook: ({ useData }) =>
+    function useHook(input) {
+      const response = useData({
+        swrOptions: { revalidateOnFocus: false, ...input?.swrOptions },
+      })
+
+      return useMemo(
+        () =>
+          Object.create(response, {
+            isEmpty: {
+              get() {
+                return (response.data?.length ?? 0) <= 0
+              },
+              enumerable: true,
+            },
+          }),
+        [response]
+      )
+    },
+}

packages/opencommerce/src/customer/index.ts

@@ -0,0 +1 @@
+export { default as useCustomer } from './use-customer'

packages/opencommerce/src/customer/use-customer.tsx

@@ -0,0 +1,17 @@
+import { SWRHook } from '@vercel/commerce/utils/types'
+import useCustomer, {
+  UseCustomer,
+} from '@vercel/commerce/customer/use-customer'
+
+export default useCustomer as UseCustomer<typeof handler>
+export const handler: SWRHook<any> = {
+  fetchOptions: {
+    query: '',
+  },
+  async fetcher({ input, options, fetch }) {},
+  useHook: () => () => {
+    return async function addItem() {
+      return {}
+    }
+  },
+}

packages/opencommerce/src/fetcher.ts

@@ -0,0 +1,41 @@
+import type { Fetcher } from '@vercel/commerce/utils/types'
+import { FetcherError } from '@vercel/commerce/utils/errors'
+
+async function getText(res: Response) {
+  try {
+    return (await res.text()) || res.statusText
+  } catch (error) {
+    return res.statusText
+  }
+}
+
+async function getError(res: Response) {
+  if (res.headers.get('Content-Type')?.includes('application/json')) {
+    const data = await res.json()
+    return new FetcherError({ errors: data.errors, status: res.status })
+  }
+  return new FetcherError({ message: await getText(res), status: res.status })
+}
+
+const fetcher: Fetcher = async ({
+  url,
+  method = 'GET',
+  variables,
+  body: bodyObj,
+}) => {
+  const hasBody = Boolean(variables || bodyObj)
+  const body = hasBody
+    ? JSON.stringify(variables ? { variables } : bodyObj)
+    : undefined
+  const headers = hasBody ? { 'Content-Type': 'application/json' } : undefined
+  const res = await fetch(url!, { method, body, headers })
+
+  if (res.ok) {
+    const { data } = await res.json()
+    return data
+  }
+
+  throw await getError(res)
+}
+
+export default fetcher

packages/opencommerce/src/index.ts

@@ -0,0 +1,12 @@
+import {
+  getCommerceProvider,
+  useCommerce as useCoreCommerce,
+} from '@vercel/commerce'
+import { openCommerceProvider, OpenCommerceProvider } from './provider'
+
+export { openCommerceProvider }
+export type { OpenCommerceProvider }
+
+export const CommerceProvider = getCommerceProvider(openCommerceProvider)
+
+export const useCommerce = () => useCoreCommerce<OpenCommerceProvider>()

packages/opencommerce/src/next.config.cjs

@@ -0,0 +1,8 @@
+const commerce = require('./commerce.config.json')
+
+module.exports = {
+  commerce,
+  images: {
+    domains: [process.env.OPENCOMMERCE_IMAGE_DOMAIN],
+  },
+}

packages/opencommerce/src/product/index.ts

@@ -0,0 +1,2 @@
+export { default as usePrice } from './use-price'
+export { default as useSearch } from './use-search'

packages/opencommerce/src/product/use-price.tsx

@@ -0,0 +1,2 @@
+export * from '@vercel/commerce/product/use-price'
+export { default } from '@vercel/commerce/product/use-price'

packages/opencommerce/src/product/use-search.tsx

@@ -0,0 +1,45 @@
+import { SWRHook } from '@vercel/commerce/utils/types'
+import useSearch, { UseSearch } from '@vercel/commerce/product/use-search'
+import type { SearchProductsHook } from '../types/product'
+
+export default useSearch as UseSearch<typeof handler>
+
+export const handler: SWRHook<SearchProductsHook> = {
+  fetchOptions: {
+    url: '/api/catalog/products',
+    method: 'GET',
+  },
+  async fetcher({
+    input: { search, categoryId, brandId, sort },
+    options,
+    fetch,
+  }) {
+    // Use a dummy base as we only care about the relative path
+    const url = new URL(options.url!, 'http://a')
+    if (search) url.searchParams.set('search', search)
+    if (categoryId) url.searchParams.set('categoryId', String(categoryId))
+    if (brandId) url.searchParams.set('brandId', String(brandId))
+    if (sort) url.searchParams.set('sort', sort)
+
+    return fetch({
+      url: url.pathname + url.search,
+      method: options.method,
+    })
+  },
+  useHook:
+    ({ useData }) =>
+    (input = {}) => {
+      return useData({
+        input: [
+          ['search', input.search],
+          ['categoryId', input.categoryId],
+          ['brandId', input.brandId],
+          ['sort', input.sort],
+        ],
+        swrOptions: {
+          revalidateOnFocus: false,
+          ...input.swrOptions,
+        },
+      })
+    },
+}

packages/opencommerce/src/provider.ts

@@ -0,0 +1,36 @@
+import fetcher from './fetcher'
+import { handler as useCart } from './cart/use-cart'
+import { handler as useAddItem } from './cart/use-add-item'
+import { handler as useUpdateItem } from './cart/use-update-item'
+import { handler as useRemoveItem } from './cart/use-remove-item'
+import { handler as useCustomer } from './customer/use-customer'
+import { handler as useSearch } from './product/use-search'
+import { handler as useLogin } from './auth/use-login'
+import { handler as useLogout } from './auth/use-logout'
+import { handler as useSignup } from './auth/use-signup'
+import { handler as useCheckout } from './checkout/use-checkout'
+import { handler as useSubmitCheckout } from './checkout/use-submit-checkout'
+import { handler as useAddCardItem } from './customer/card/use-add-item'
+import { handler as useCards } from './customer/card/use-cards'
+import { handler as useAddAddressItem } from './customer/address/use-add-item'
+import { handler as useUpdateAddressItem } from './customer/address/use-update-item'
+
+export const openCommerceProvider = {
+  locale: 'en-us',
+  cartCookie: 'opencommerce_cartId',
+  fetcher,
+  cart: { useCart, useAddItem, useUpdateItem, useRemoveItem },
+  customer: {
+    useCustomer,
+    card: { useCards, useAddItem: useAddCardItem },
+    address: {
+      useAddItem: useAddAddressItem,
+      useUpdateItem: useUpdateAddressItem,
+    },
+  },
+  products: { useSearch },
+  auth: { useLogin, useLogout, useSignup },
+  checkout: { useCheckout, useSubmitCheckout },
+}
+
+export type OpenCommerceProvider = typeof openCommerceProvider

packages/opencommerce/src/types/cart.ts

@@ -0,0 +1,21 @@
+import * as Core from '@vercel/commerce/types/cart'
+import { Checkout } from '../../schema'
+import { ProductVariant } from './product'
+
+export * from '@vercel/commerce/types/cart'
+
+export type Cart = Core.Cart & {
+  checkout?: Checkout
+}
+
+export type CartItemBody = Core.CartItemBody & {
+  currencyCode?: string
+  variant?: ProductVariant
+}
+
+export type CartTypes = Core.CartTypes & {
+  itemBody: CartItemBody
+  cart?: Cart
+}
+
+export type CartSchema = Core.CartSchema<CartTypes>

packages/opencommerce/src/types/checkout.ts

@@ -0,0 +1 @@
+export * from '@vercel/commerce/types/checkout'

packages/opencommerce/src/types/customer/address.ts

@@ -0,0 +1,14 @@
+import * as Core from '@vercel/commerce/types/customer/address'
+
+export * from '@vercel/commerce/types/customer/address'
+
+export type AddressFields = Core.AddressFields & {
+  shippingMethod?: {
+    id: string
+    fulfillmentGroupId: string
+  }
+}
+
+export type CustomerAddressTypes = Core.CustomerAddressTypes & {
+  fields: AddressFields
+}