README

.dockerignore

@@ -0,0 +1,2 @@
+node_modules
+npm-debug.log

Dockerfile

@@ -0,0 +1,13 @@
+FROM node:14-alpine
+
+WORKDIR /app
+
+COPY package*.json ./
+
+RUN npm install --production
+
+COPY . .
+
+EXPOSE 3000
+
+CMD ["npm", "start"]

README.md

@@ -0,0 +1,98 @@
+# Ecomm #
+
+## Description ##
+This is a simple e-commerce backend application.
+
+Technologies used:
+
+* Node.js
+* typescript
+* Express.js
+* MongoDB
+* Mongoose ORM
+* Docker (docker-compose)
+* bcrypt
+* JWT
+
+## How to run ##
+1. Clone the repository
+2. Make sure you have docker and docker-compose installed
+3. Implement the .env file
+4. Run `docker-compose up` in the root directory
+   The application will be running on port 3000
+   The database will be running on port 27017
+
+## API ##
+app.use('/products', productRouter);
+app.use('/cart', cartRouter);
+
+# Users #
+## POST /users ## - Create a new user
+### Request body ###
+```json
+{
+    "name": "string",
+    "email": "string",
+    "password": "string"
+}
+```
+### Response body ###
+```json
+{
+    "user": {
+        "_id": "string",
+        "name": "string",
+        "email": "string",
+        "password": "string",
+        "createdAt": "string",
+        "updatedAt": "string",
+        "__v": "number"
+    },
+    "token": "string"
+}
+```
+## POST /users/login ## - Login
+### Request body ###
+```json
+{
+    "email": "string",
+    "password": "string"
+}
+```
+### Response ###
+# body #
+```json
+{
+  "access-token": "string"
+}
+```
+# headers #
+``` Cookie - "access-token"": "string" ```
+
+
+# Products #
+## GET /products ## - Get all products
+  accepts query params: page, limit. Default values: page = 0, limit = 50.
+### Response body ###
+```json
+{
+    "products": [
+        {
+            "_id": "string",
+            "name": "string",
+            "description": "string",
+            "price": "number",
+            "createdAt": "string",
+            "updatedAt": "string",
+            "__v": "number"
+        }
+    ],
+    "total": "number"
+}
+```
+
+
+
+
+
+

docker-compose.yaml

@@ -1,5 +1,16 @@
 version: '3'
 services:
+  app:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    ports:
+      - 3000:3000
+    volumes:
+      - ./src:/app/src
+      - ./dist:/app/dist
+    depends_on:
+      - mongodb
   mongodb:
     image: arm64v8/mongo:4.0
     restart: always
@@ -9,9 +20,9 @@ services:
       - structshare_vol:/data/db
       - ./init-scripts/init.js:/docker-entrypoint-initdb.d/mongo-init.js
     environment:
-      - MONGO_INITDB_DATABASE=${DB_DATABASE}
-      - MONGO_INITDB_ROOT_USERNAME=${DB_USERNAME}
-      - MONGO_INITDB_ROOT_PASSWORD=${DB_PASSWORD}
+      - MONGO_INITDB_DATABASE=your-database-name
+      - MONGO_INITDB_ROOT_USERNAME=your-username
+      - MONGO_INITDB_ROOT_PASSWORD=your-password
     platform: linux/arm64/v8
     expose:
       - 27017

package.json

@@ -5,7 +5,8 @@
   "main": "index.js",
   "scripts": {
     "dev": "nodemon dist/index.js",
-    "start": "node dist/index.js"
+    "start": "node dist/index.js",
+    "build": "tsc -p ."
   },
   "author": "",
   "license": "ISC",

src/controllers/CartController.ts

@@ -1,5 +1,5 @@
 import { Request, Response } from 'express';
-import { Cart, ICart, Product, Order, IOrder } from '../mongoose/Schema';
+import { Cart, ICart, Order } from '../mongoose/Schema';
 import { sendEmailasync } from '../services/sendGrid';
 import { config } from 'dotenv';
 
@@ -55,7 +55,7 @@ export async function checkout(req: Request, res: Response) {
 
   const { userId } = req.body;
   const usersCart = await Cart.findOne({ userId });
-  console.log(usersCart)
+
   if (!usersCart) {
     res.status(404).json({ error: 'Cart not found.' });
     return;

src/controllers/ProductController.ts

@@ -5,7 +5,13 @@ export async function createProduct(req: Request, res: Response) {
   try {
     const { name, description, price, userId } = req.body;
     if(!name || !description || !price || !userId) {
-      res.status(400).json({ error: 'Name, description, price and user id are required.' });
+      res.status(400).json({ error: 'Name, description, price are required.' });
+      return;
+    }
+    
+    const productExists = await Product.exists({ name, userId });
+    if(productExists) {
+      res.status(400).json({ error: 'Product already exists.' });
       return;
     }
     const product: IProduct = await Product.create({
@@ -25,10 +31,9 @@ export async function createProduct(req: Request, res: Response) {
 export async function listProducts(req: Request, res: Response) {
   try {
     const { page, limit } = req.query;
-    const products = await Product.find()
-      .sort({ price: 1 })
-      .skip(Number(page) * Number(limit))
-      .limit(Number(limit));
+    const dbPage = Number(page) || 0;
+    const dbLimit = Number(limit) || 50;
+    const products = await Product.find().sort({ price: 1 }).skip(Number(dbPage) * Number(dbLimit)).limit(Number(dbLimit));
 
     res.json(products);
   } catch (error) {
@@ -36,3 +41,18 @@ export async function listProducts(req: Request, res: Response) {
     res.status(500).json({ error: 'An error occurred while listing the products.' });
   }
 }
+
+export async function getProduct(req: Request, res: Response) {
+  const { id } = req.params;
+  try {
+    const product = await Product.findById(id);
+    if(!product) {
+      res.status(404).json({ error: 'Product not found.' });
+      return;
+    }
+    res.json(product);
+  } catch (error) {
+    console.error('Error getting product:', error);
+    res.status(500).json({ error: 'An error occurred while getting the product.' });
+  }
+}

src/controllers/UserController.ts

@@ -11,8 +11,14 @@ export async function createUser(req: Request, res: Response) {
     if (!(email && password && firstName && lastName && address)) {
       return res.status(400).json({ error: 'All inputs are required' });
     }
+    // checkIfUserExists return true if the user exists
+    const userExists = await User.exists({ email });
+    if(userExists) {
+      return res.status(400).json({ error: 'User already exists, Try login :)' });
+    }
 
     const hashedPassword = await bcrypt.hash(password, 10);
+
     const user: IUser = await User.create({
       firstName,
       lastName,
@@ -21,7 +27,9 @@ export async function createUser(req: Request, res: Response) {
       address,
     });
 
-    res.json(user);
+    res.status(200).json({
+      massage: 'User created successfully'
+    });
   } catch (error) {
     console.error('Error creating user:', error);
     res.status(500).json({ error: 'An error occurred while creating the user.' });
@@ -54,7 +62,7 @@ export async function login(req: Request, res: Response) {
 
     // Send the JWT as the response
     res.status(200).json({
-      username: user.firstName
+      token
     });
   } catch (error) {
     console.error('Error during login:', error);

src/index.ts

@@ -9,12 +9,11 @@ import cartRouter from './routes/cart';
 const env = require('dotenv').config().parsed;
 
 const app = express();
-const PORT = 3000;
+const PORT = env.PORT || 3000;
 
 app.use(express.json());
 app.use(cookieParser())
 
-
 // Connect to MongoDB using Mongoose
 mongoose.connect(env.DATABASE_URL);
 

src/middlewares/checkAuth.ts

@@ -1,6 +1,5 @@
-import express, { Request, Response, NextFunction } from 'express';
-import jwt, { JwtPayload } from 'jsonwebtoken';
-import cookieParser from 'cookie-parser';
+import { Request, Response, NextFunction } from 'express';
+import jwt from 'jsonwebtoken';
 
 interface AuthenticatedRequest extends Request {
   userId?: string;
@@ -14,7 +13,7 @@ export function authenticateToken(req: AuthenticatedRequest, res: Response, next
     return res.status(401).json({ error: 'Unauthorized' });
   }
 
-  const user_id = jwt.verify(token, process.env.JWT_SECRET as string, (err, decoded) => {
+  jwt.verify(token, process.env.JWT_SECRET as string, (err: any, decoded: { userId: any; }) => {
     if (err) {
       return res.status(401).json({ error: 'In Valid Token' });
     }

src/routes/cart.ts

@@ -1,4 +1,4 @@
-import express, { Request } from 'express';
+import express from 'express';
 import { authenticateToken } from '../middlewares/checkAuth';
 import { addToCart, listCart, checkout } from '../controllers/CartController';
 

src/routes/product.ts

@@ -1,12 +1,12 @@
-import express, { Request } from 'express';
+import express from 'express';
 import { authenticateToken } from '../middlewares/checkAuth';
-import { createProduct, listProducts } from '../controllers/ProductController';
-
-
+import { createProduct, listProducts, getProduct } from '../controllers/ProductController';
 
 const productRouter = express.Router();
 
 productRouter.post('/', authenticateToken, createProduct)
 productRouter.get('/', listProducts);
+productRouter.get('/:id', getProduct);
+
 
 export default productRouter;