rename checkoutCreate to createCart and remove Shopify checkout API

Signed-off-by: Loan Laux <loan@outgrow.io>

framework/reactioncommerce/cart/utils/create-cart.ts

@@ -0,0 +1,32 @@
+import {
+  REACTION_ANONYMOUS_CART_TOKEN_COOKIE,
+  SHOPIFY_CHECKOUT_URL_COOKIE,
+  REACTION_COOKIE_EXPIRE,
+} from '../../const'
+import createCartMutation from '../../utils/mutations/create-cart'
+import Cookies from 'js-cookie'
+
+export const createCart = async (fetch: any) => {
+  const data = await fetch({
+    query: createCartMutation,
+    variables: {
+      input: {
+        shopId,
+      },
+    },
+  })
+
+  const checkout = data.checkoutCreate?.checkout
+  const checkoutId = checkout?.id
+
+  if (checkoutId) {
+    const options = {
+      expires: REACTION_COOKIE_EXPIRE,
+    }
+    Cookies.set(REACTION_ANONYMOUS_CART_TOKEN_COOKIE, checkoutId, options)
+  }
+
+  return checkout
+}
+
+export default createCart