Node eval

app/server.js

@@ -3,8 +3,9 @@ const bodyParser = require('body-parser');
 const jwt = require('jsonwebtoken');
 const swaggerUi = require('swagger-ui-express');
 const YAML = require('yamljs');
-const swaggerDocument = YAML.load('./swagger.yaml'); // Replace './swagger.yaml' with the path to your Swagger file
+const swaggerDocument = YAML.load('./swagger.yaml');
 const app = express();
+require("dotenv").config();
 
 app.use(bodyParser.json());
 
@@ -13,6 +14,8 @@ const users = require('../initial-data/users.json');
 const brands = require('../initial-data/brands.json');
 const products = require('../initial-data/products.json');
 
+const jwtSecret = process.env.jwtSecret; 
+
 // Error handling
 app.use((err, req, res, next) => {
 	console.error(err.stack);
@@ -28,4 +31,104 @@ app.listen(PORT, () => {
 	console.log(`Server running on port ${PORT}`);
 });
 
+// Middleware for authentication 
+const authenticateToken = (req, res, next) => {
+    const token = req.headers['authorization'];
+    if (!token) return res.status(401).json({ error: 'Unauthorized' });
+
+    jwt.verify(token, jwtSecret, (err, user) => {
+			if (err) return res.status(401).json({ error: 'Unauthorized' });
+			req.user = user;
+			next();
+    });
+};
+
+// Routes
+app.get('/brands', (req, res) => {
+	res.json(brands);
+});
+
+app.get('/brands/:id/products', (req, res) => {
+    const brandId = req.params.id;
+    const brandProducts = products.filter(product => product.categoryId === brandId);
+    if (brandProducts.length === 0) {
+        return res.status(404).json({ error: 'Brand not found' });
+    }
+    res.json(brandProducts);
+});
+
+app.get('/products', (req, res) => {
+    res.json(products);
+});
+
+app.post('/login', (req, res) => {
+  if (req.body.username === undefined || req.body.password === undefined) {	
+		return res.status(400).json({ error: "Username and password are required" });
+	}
+	const { username, password } = req.body;
+  const user = users.find(
+    (u) => u.login.username === username && u.login.password === password
+  );
+  if (!user) {
+    return res.status(401).json({ error: "Invalid credentials" });
+  }
+  const token = jwt.sign({ username: user.login.username }, jwtSecret, {
+    expiresIn: "1h",
+  });
+  res.json({ token });
+});
+
+app.get('/me/cart', authenticateToken, (req, res) => {
+	const userCart = users.find(u => u.login.username === req.user.username).cart;
+		if (!userCart) {
+			return res.status(401).json({ error: "Unauthorized" });
+		}		
+    res.json(userCart);
+});
+
+app.post('/me/cart', authenticateToken, (req, res) => {
+  const { id } = req.body;
+  const userCart = users.find((u) => u.login.username === req.user.username).cart;
+  if (!userCart) {
+    return res.status(401).json({ error: "Unauthorized" });
+  }
+	const product = products.find((item) => item.id === id);
+  const existingProduct = userCart.find((item) => item.id === id);
+  if (existingProduct) {
+    existingProduct.quantity += 1;
+  } else {
+    userCart.push({ ...product, quantity: 1 });
+  }
+  res.json(userCart);
+});
+
+app.delete('/me/cart/:productId', authenticateToken, (req, res) => {
+    const productId = req.params.productId;
+    const user = users.find(u => u.id === req.user.id);
+    if (!user) {
+        return res.status(401).json({ error: 'Unauthorized' });
+    }
+    const productIndex = user.cart.findIndex(item => item.id === productId);
+    if (productIndex === -1) {
+        return res.status(404).json({ error: 'Product not found in cart' });
+    }
+    user.cart.splice(productIndex, 1);
+    res.json(user.cart);
+});
+
+app.post('/me/cart/:productId', authenticateToken, (req, res) => {
+    const productId = req.params.id;
+    const { quantity } = req.body;
+    const user = users.find(u => u.id === req.user.id);
+    if (!user) {
+        return res.status(401).json({ error: 'Unauthorized' });
+    }
+    const product = user.cart.find(item => item.productId === productId);
+    if (!product) {
+        return res.status(404).json({ error: 'Product not found in cart' });
+    }
+    product.quantity = quantity;
+    res.json(user.cart);
+});
+
 module.exports = app;

package.json

@@ -13,6 +13,7 @@
 	"license": "ISC",
 	"dependencies": {
 		"body-parser": "^1.18.2",
+		"dotenv": "^16.5.0",
 		"express": "^4.18.2",
 		"finalhandler": "latest",
 		"http": "latest",