handling for async logic in products.js

routes/API.js

@@ -0,0 +1,10 @@
+const express = require('express');
+const apiRouter = express.Router();
+
+const userRouter = require('./user');
+const productsRouter = require('./products');
+
+apiRouter.use('/users', userRouter);
+apiRouter.use('/products', productsRouter);
+
+module.exports = apiRouter;