🔗 Product Recommendation System - Backend

This is the backend/server-side of the full-stack Product Recommendation System. Built with Node.js, Express.js, and MongoDB, it handles all API requests, user authentication (JWT), and database operations for queries, recommendations, and comments.

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📁 API Base URL

https://product-recommendation-server.vercel.app/

⚙️ Features

• 🔐 JWT-based authentication and authorization
• 📩 RESTful APIs for:
  • User registration & login
  • Creating, reading, updating, and deleting product queries
  • Posting and managing recommendations
  • Adding and moderating comments
  • Likes and unlikes
• ⚠️ Protected routes using middleware
• 🌐 CORS, environment variables, and security best practices
• 📦 MongoDB for persistent data storage

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🛠️ Tech Stack

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• Step 1: Clone the repository --git clone https://github.com/Ratul8863/Product-Recommendations-server.git

• Step 2: Navigate into the project folder --cd Product-Recommendations-server

• Step 3: Install dependencies npm install

• Step 4: Create a .env file Example :

PORT=5000 DB_URI=your_mongodb_connection_string ACCESS_TOKEN_SECRET=your_jwt_secret CLIENT_URL=http://localhost:5173

• Step 5: Start the server -- node index.js
• Or, for development with auto-restart npm install -g nodemon nodemon index.js

📦 Installed Dependencies

npm install express cors dotenv jsonwebtoken mongoose cookie-parser