Vendure provider (#223)

* Minimal list/detail views working with Vendure

* Implement useCart/useAddItem

* Implement useUpdateItem & useRemoveItem

* Implement useSearch

* Add operations codegen, tidy up

* Dummy checkout page

* Implement auth/customer hooks

* Use env var for Shop API url

* Add some documentation

* Improve error handling

* Optimize preview image size

* Fix accidental change

* Update Vendure provider to latest changes

* Vendure provider: split out gql operations, remove unused files

* Update Vendure provider readme

* Add local next.config to Vendure provider, update docs

* Update to use demo server

* Fix build errors

* Use proxy for vendure api

* Simplify instructions in Vendure readme

* Refactor Vendure checkout api handler

* Improve image quality

framework/vendure/product/get-all-products.ts

@@ -0,0 +1,39 @@
+import { Product } from '@commerce/types'
+import { getConfig, VendureConfig } from '../api'
+import { GetAllProductsQuery } from '../schema'
+import { normalizeSearchResult } from '../lib/normalize'
+import { getAllProductsQuery } from '../lib/queries/get-all-products-query'
+
+export type ProductVariables = { first?: number }
+
+async function getAllProducts(opts?: {
+  variables?: ProductVariables
+  config?: VendureConfig
+  preview?: boolean
+}): Promise<{ products: Product[] }>
+
+async function getAllProducts({
+  query = getAllProductsQuery,
+  variables: { ...vars } = {},
+  config,
+}: {
+  query?: string
+  variables?: ProductVariables
+  config?: VendureConfig
+  preview?: boolean
+} = {}): Promise<{ products: Product[] | any[] }> {
+  config = getConfig(config)
+  const variables = {
+    input: {
+      take: vars.first,
+      groupByProduct: true,
+    },
+  }
+  const { data } = await config.fetch<GetAllProductsQuery>(query, { variables })
+
+  return {
+    products: data.search.items.map((item) => normalizeSearchResult(item)),
+  }
+}
+
+export default getAllProducts