upgrade to node 16, add search by full product id (#84)

src/resolvers/products-resolver.ts

@@ -84,7 +84,18 @@ async function getProductsSearchResult(
   const prods = Promise.all([
     prodApi.searchByName(q),
     prodApi.searchByArtNo(q),
-  ]).then((d) => d.flat());
+    prodApi.searchByCompleteProductId(q),
+  ]).then((d) => {
+    // flatten, remove falsy (each searchBy... can return undefined above)
+    // and finally remove duplicates.
+    const products = {} as { [key: string]: Product };
+    d.flat().forEach((product) => {
+      if (product && !products[product.id]) {
+        products[product.id] = product;
+      }
+    });
+    return Object.values(products);
+  });
 
   return {
     q: q,