init commit

server/.env

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+DATABASE_URL=postgresql://user:password@localhost:5432/brew
+JWT_SECRET=your_jwt_secret_here
+PORT=5000

server/db.js

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+const { Pool } = require('pg');
+require('dotenv').config();
+
+const pool = new Pool({
+  connectionString: process.env.DATABASE_URL
+});
+
+const initDb = async () => {
+  try {
+    await pool.query(`
+      CREATE TABLE IF NOT EXISTS users (
+        id SERIAL PRIMARY KEY,
+        username VARCHAR(50) UNIQUE NOT NULL,
+        email VARCHAR(255) UNIQUE NOT NULL,
+        password_hash VARCHAR(255) NOT NULL,
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+      )
+    `);
+    console.log('Database initialized');
+  } catch (err) {
+    console.error('Error initializing database', err);
+  }
+};
+
+initDb();
+
+module.exports = pool;

server/index.js

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+const express = require('express');
+const cors = require('cors');
+const bcrypt = require('bcrypt');
+const jwt = require('jsonwebtoken');
+const pool = require('./db');
+require('dotenv').config();
+
+const app = express();
+const PORT = process.env.PORT || 5000;
+
+app.use(cors());
+app.use(express.json());
+
+// Registration
+app.post('/api/register', async (req, res) => {
+  try {
+    const { username, email, password } = req.body;
+    
+    // Check if user exists
+    const userExists = await pool.query('SELECT * FROM users WHERE email = $1 OR username = $2', [email, username]);
+    if (userExists.rows.length > 0) {
+      return res.status(400).json({ error: 'User already exists' });
+    }
+
+    // Hash password
+    const salt = await bcrypt.genSalt(10);
+    const passwordHash = await bcrypt.hash(password, salt);
+
+    // Save to DB
+    const newUser = await pool.query(
+      'INSERT INTO users (username, email, password_hash) VALUES ($1, $2, $3) RETURNING id, username, email',
+      [username, email, passwordHash]
+    );
+
+    res.status(201).json({ user: newUser.rows[0] });
+  } catch (err) {
+    console.error(err);
+    res.status(500).json({ error: 'Server error' });
+  }
+});
+
+// Login
+app.post('/api/login', async (req, res) => {
+  try {
+    const { email, password } = req.body;
+
+    // Find user
+    const user = await pool.query('SELECT * FROM users WHERE email = $1', [email]);
+    if (user.rows.length === 0) {
+      return res.status(400).json({ error: 'Invalid credentials' });
+    }
+
+    // Check password
+    const validPassword = await bcrypt.compare(password, user.rows[0].password_hash);
+    if (!validPassword) {
+      return res.status(400).json({ error: 'Invalid credentials' });
+    }
+
+    // Create token
+    const token = jwt.sign(
+      { id: user.rows[0].id, username: user.rows[0].username },
+      process.env.JWT_SECRET || 'fallback_secret',
+      { expiresIn: '1h' }
+    );
+
+    res.json({ token, user: { id: user.rows[0].id, username: user.rows[0].username, email: user.rows[0].email } });
+  } catch (err) {
+    console.error(err);
+    res.status(500).json({ error: 'Server error' });
+  }
+});
+
+app.listen(PORT, () => {
+  console.log(\`Server running on port \${PORT}\`);
+});

server/package.json

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+{
+  "name": "server",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "type": "commonjs",
+  "dependencies": {
+    "bcrypt": "^6.0.0",
+    "cors": "^2.8.6",
+    "dotenv": "^17.4.2",
+    "express": "^5.2.1",
+    "jsonwebtoken": "^9.0.3",
+    "pg": "^8.21.0"
+  }
+}