Coinbase Clone - Backend API

Node.js + Express + MongoDB backend for the Coinbase Clone assignment.

Setup

npm install
cp .env.example .env
# Fill in your MongoDB URI and JWT secret
npm run dev

API Endpoints

Method	Route	Auth	Description
GET/POST	/register	No	Register new user
GET/POST	/login	No	Login user
POST	/logout	No	Logout user
GET	/profile	Yes (JWT)	Get user profile
GET	/crypto	No	Get all cryptocurrencies
GET	/crypto/gainers	No	Get top gainers
GET	/crypto/new	No	Get newest listings
POST	/crypto	No	Add new cryptocurrency

Deployment on Render

1. Push this folder to GitHub
2. Go to render.com → New → Web Service
3. Connect your repo
4. Set environment variables:
   • MONGODB_URI = your MongoDB Atlas connection string
   • JWT_SECRET = a long random string
   • FRONTEND_URL = your Netlify frontend URL
   • NODE_ENV = production
5. Build command: npm install
6. Start command: npm start