Node.js Eval

app/server.js

@@ -1,12 +1,12 @@
 const express = require('express');
-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 app = express();
+require('dotenv').config();
 
-app.use(bodyParser.json());
+app.use(express.json());
 
 // Importing the data from JSON files
 const users = require('../initial-data/users.json');
@@ -22,6 +22,131 @@ app.use((err, req, res, next) => {
 // Swagger
 app.use('/api-docs', swaggerUi.serve, swaggerUi.setup(swaggerDocument));
 
+// Authenticate token when login is required
+const authenticate = (req, res, next) => {
+  try {
+    const token = req.headers['authorization']; // Get token from Authorization header
+    if (!token) {
+      return res.status(401).json({ message: 'No token provided' })
+    }
+    const decoded = jwt.verify(token, process.env.JWT_SECRET) // Access info from token using decoded
+    const user = users.find((u) => u.login.username === decoded.username) // Locate user info
+    if (!user) {
+      return res.status(404).json({ message: 'User not found' });
+    }
+
+    req.user = user
+
+    next();
+  }
+  catch (error) { // Use built in error names for errors with token
+    if (error.name === 'JsonWebTokenError') {
+      return res.status(401).json({ message: 'Invalid token' });
+    } else if (error.name === 'TokenExpiredError') {
+      return res.status(401).json({ message: 'Token has expired' });
+    }
+    res.status(401).json({ message: 'Authentication failed'})
+  }
+}
+
+// Route to get brands
+app.get('/brands', (req, res) => {
+  res.status(200).json(brands);
+});
+
+// Route to get products by selected brand
+app.get('/products', (req, res) => {
+  const brandId = parseInt(req.query.brandId) // Get brandId from query
+
+  if(!brandId) {
+    return res.status(400).json({ message: 'Brand ID is required'})
+  }
+
+  const brandProducts = products.filter(product => product.categoryId === brandId) // Set brandId to the categoryId for each product listed
+
+  if (brandProducts.length === 0) {
+    return res.status(404).json({ message: 'No products for this brand found'})
+  }
+
+  res.status(200).json(brandProducts)
+})
+
+
+// Route to authenticate users and generate JWT token
+app.post('/login', (req, res) => {
+  const { username, password } = req.body; //pull username and password from request
+	const user = users.find(u => u.login.username === username); //searching for user with username which match request
+
+  if (!user || user.login.password !== password) { // if password or username don't match or don't exist, give error 401
+    return res.status(401).json({ message: 'Invalid credentials' });
+  }
+
+  // Generate a JWT token with user data
+  const token = jwt.sign(
+    { username: user.login.username },
+    process.env.JWT_SECRET,  // Using a secret key from environment variables
+    { expiresIn: '1h' }
+  );
+
+  res.set('authorization', token);
+
+  return res.status(200).json({ token: token }); // Response to be returned
+});
+
+
+// Route to authenticate token and get cart
+app.get('/cart', authenticate, (req, res) => {
+  const user = req.user
+  res.status(200).json(user.cart);  // Send the cart items in the response
+})
+
+// Route to add an item to user's cart
+app.post('/cart', authenticate, (req, res) => {
+  const user = req.user
+  const { newItem } = req.body
+
+  try {
+    if (!user.cart) {
+      user.cart = [];
+    }
+
+    const existingItem = user.cart.find((item) => item.id === newItem.id);
+
+    if (existingItem) {
+      existingItem.quantity += newItem.quantity
+    }
+
+    else {
+      user.cart.push({
+        id: newItem.id,
+        quantity: newItem.quantity,
+        name: newItem.name,
+        description: newItem.description,
+        price: newItem.price
+      });
+    } 
+
+    res.status(200).json({ message: 'Item added to cart', cart: user.cart });
+  } catch (error) {
+    console.error(error);
+    res.status(500).json({ message: error.message });
+  }
+})
+
+app.delete('/cart:itemId', authenticate, (req, res) => {
+  const user = req.user
+  const { itemId } = req.params;
+  const itemIndex = user.cart.findIndex((item) => item.id === parseInt(itemId))
+
+  if (itemIndex === -1) {
+    return res.status(404).json({ message: 'Item not found in cart'})
+  }
+
+  user.cart.splice(itemIndex, 1)
+  res.status(200).json({message: 'Item removed from cart', cart: user.cart})
+})
+
+
 // Starting the server
 const PORT = process.env.PORT || 3000;
 app.listen(PORT, () => {

eslint.config.mjs

@@ -0,0 +1,22 @@
+import globals from "globals";
+import pluginJs from "@eslint/js";
+
+
+/** @type {import('eslint').Linter.Config[]} */
+export default [
+  {files: ["**/*.js"], languageOptions: {sourceType: "commonjs"}},
+  {languageOptions: { globals: globals.browser }},
+  pluginJs.configs.recommended,
+  // {
+  //   "env": {
+  //     "node": true,
+  //     "es2021": true
+  //   },
+  //   "parserOptions": {
+  //     "ecmaVersion": 2021
+  //   },
+  //   "rules": {
+  //     "no-undef": "error"
+  //   }
+  // }
+];

initial-data/products.json

@@ -1,90 +1,134 @@
 [
-    {
-        "id": "1",
-        "categoryId": "1",
-        "name": "Superglasses",
-        "description": "The best glasses in the world",
-        "price":150,
-        "imageUrls":["https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"]
-    },
-    {
-        "id": "2",
-        "categoryId": "1",
-        "name": "Black Sunglasses",
-        "description": "The best glasses in the world",
-        "price":100,
-        "imageUrls":["https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"]
-    },
-    {
-        "id": "3",
-        "categoryId": "1",
-        "name": "Brown Sunglasses",
-        "description": "The best glasses in the world",
-        "price":50,
-        "imageUrls":["https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"]
-    },
-    {
-        "id": "4",
-        "categoryId": "2",
-        "name": "Better glasses",
-        "description": "The best glasses in the world",
-        "price":1500,
-        "imageUrls":["https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"]
-    },
-    {
-        "id": "5",
-        "categoryId": "2",
-        "name": "Glasses",
-        "description": "The most normal glasses in the world",
-        "price":150,
-        "imageUrls":["https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"]
-    },
-    {
-        "id": "6",
-        "categoryId": "3",
-        "name": "glas",
-        "description": "Pretty awful glasses",
-        "price":10,
-        "imageUrls":["https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"]
-    },
-    {
-        "id": "7",
-        "categoryId": "3",
-        "name": "QDogs Glasses",
-        "description": "They bark",
-        "price":1500,
-        "imageUrls":["https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"]
-    },
-    {
-        "id": "8",
-        "categoryId": "4",
-        "name": "Coke cans",
-        "description": "The thickest glasses in the world",
-        "price":110,
-        "imageUrls":["https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"]
-    },
-    {
-        "id": "9",
-        "categoryId": "4",
-        "name": "Sugar",
-        "description": "The sweetest glasses in the world",
-        "price":125,
-        "imageUrls":["https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"]
-    },
-    {
-        "id": "10",
-        "categoryId": "5",
-        "name": "Peanut Butter",
-        "description": "The stickiest glasses in the world",
-        "price":103,
-        "imageUrls":["https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"]
-    },
-    {
-        "id": "11",
-        "categoryId": "5",
-        "name": "Habanero",
-        "description": "The spiciest glasses in the world",
-        "price":153,
-        "imageUrls":["https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg","https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"]
-    }
-]
+  {
+    "id": 1,
+    "categoryId": 1,
+    "name": "Superglasses",
+    "description": "The best glasses in the world",
+    "price": 150,
+    "imageUrls": [
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"
+    ]
+  },
+  {
+    "id": 2,
+    "categoryId": 1,
+    "name": "Black Sunglasses",
+    "description": "The best glasses in the world",
+    "price": 100,
+    "imageUrls": [
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"
+    ]
+  },
+  {
+    "id": 3,
+    "categoryId": 1,
+    "name": "Brown Sunglasses",
+    "description": "The best glasses in the world",
+    "price": 50,
+    "imageUrls": [
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"
+    ]
+  },
+  {
+    "id": 4,
+    "categoryId": 2,
+    "name": "Better glasses",
+    "description": "The best glasses in the world",
+    "price": 1500,
+    "imageUrls": [
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"
+    ]
+  },
+  {
+    "id": 5,
+    "categoryId": 2,
+    "name": "Glasses",
+    "description": "The most normal glasses in the world",
+    "price": 150,
+    "imageUrls": [
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"
+    ]
+  },
+  {
+    "id": 6,
+    "categoryId": 3,
+    "name": "glas",
+    "description": "Pretty awful glasses",
+    "price": 10,
+    "imageUrls": [
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"
+    ]
+  },
+  {
+    "id": 7,
+    "categoryId": 3,
+    "name": "QDogs Glasses",
+    "description": "They bark",
+    "price": 1500,
+    "imageUrls": [
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"
+    ]
+  },
+  {
+    "id": 8,
+    "categoryId": 4,
+    "name": "Coke cans",
+    "description": "The thickest glasses in the world",
+    "price": 110,
+    "imageUrls": [
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"
+    ]
+  },
+  {
+    "id": 9,
+    "categoryId": 4,
+    "name": "Sugar",
+    "description": "The sweetest glasses in the world",
+    "price": 125,
+    "imageUrls": [
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"
+    ]
+  },
+  {
+    "id": 10,
+    "categoryId": 5,
+    "name": "Peanut Butter",
+    "description": "The stickiest glasses in the world",
+    "price": 103,
+    "imageUrls": [
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"
+    ]
+  },
+  {
+    "id": 11,
+    "categoryId": 5,
+    "name": "Habanero",
+    "description": "The spiciest glasses in the world",
+    "price": 153,
+    "imageUrls": [
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg",
+      "https://image.shutterstock.com/z/stock-photo-yellow-sunglasses-white-backgound-600820286.jpg"
+    ]
+  }
+]