Sorting for products api

src/controllers/product.controller.js

@@ -122,4 +122,22 @@ const getProductById = async (req, res, next) => {
     return res.json(product);
 }
 
-export {getAllProducts, getProductById}
+const getProductBySortCategory = async (req, res, next) => {
+  const sort = req.params.sort;
+  const sortOptions = {
+    best_selling: { sale: -1 }, // Default
+    a_z: { name: 1 },
+    z_a: { name: -1 },
+    price_asc: { price: 1 },
+    price_desc: { price: -1 },
+    rating_asc: { rating: 1 },
+    rating_desc: { rating: -1 },
+  };
+  sort=typeof sort=="string" && sortOptions[sort]?sortOptions[sort]:sortOptions['best_selling'];
+  const products=(await Product.find()).sort(sort);
+  if(!products)
+    return next(new HttpException(404, "No products found"));
+  return res.json(products);
+}
+
+export {getAllProducts, getProductById, getProductBySortCategory};

src/routes/product.routes.js

@@ -1,5 +1,5 @@
 import express from 'express';
-import { getAllProducts, getProductById } from '../controllers/product.controller.js';
+import { getAllProducts, getProductById, getProductBySortCategory } from '../controllers/product.controller.js';
 
 const router = express.Router();
 
@@ -9,4 +9,7 @@ router.get('/', getAllProducts);
 // Fetch product by ID
 router.get('/:id',getProductById);
 
+//Fetch product accoridng to sort category
+router.get('/:sort', getProductBySortCategory);
+
 export default router