Add Reaction Commerce provider

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

framework/reactioncommerce/product/get-product.ts

@@ -0,0 +1,32 @@
+import { GraphQLFetcherResult } from '@commerce/api'
+import { getConfig, ReactionCommerceConfig } from '../api'
+import { normalizeProduct, getProductQuery } from '../utils'
+
+type Variables = {
+  slug: string
+}
+
+type ReturnType = {
+  product: any
+}
+
+const getProduct = async (options: {
+  variables: Variables
+  config: ReactionCommerceConfig
+  preview?: boolean
+}): Promise<ReturnType> => {
+  let { config, variables } = options ?? {}
+  config = getConfig(config)
+
+  const { data }: GraphQLFetcherResult = await config.fetch(getProductQuery, {
+    variables,
+  })
+
+  const { catalogItemProduct: product } = data
+
+  return {
+    product: product ? normalizeProduct(product) : null,
+  }
+}
+
+export default getProduct