intializing websockets not in working and implemented new file structure

.env.example

@@ -0,0 +1,35 @@
+# Server Configuration
+NODE_ENV=production
+PORT=5000
+
+# Database Configuration
+DATABASE_URL="postgresql://eraser_user:eraser_pass@localhost:5432/eraser_db?schema=public"
+
+# JWT Configuration
+JWT_SECRET=your_super_secret_jwt_key_change_this_in_production_min_32_chars
+JWT_EXPIRES_IN=7d
+
+# Frontend URLs (CORS)
+FRONTEND_URL=http://localhost:5173
+FRONTEND_URL_PROD=https://your-production-domain.com
+
+# Redis (Optional - for horizontal scaling)
+REDIS_URL=redis://localhost:6379
+
+# Logging
+LOG_LEVEL=info
+
+# Rate Limiting
+RATE_LIMIT_WINDOW_MS=900000
+RATE_LIMIT_MAX_REQUESTS=100
+
+# Application Settings
+MAX_BOARD_SIZE_MB=50
+MAX_CONCURRENT_USERS_PER_BOARD=50
+SAVE_DEBOUNCE_MS=2000
+
+# Email Configuration (Optional)
+SMTP_HOST=smtp.gmail.com
+SMTP_PORT=587
+SMTP_USER=your-email@gmail.com
+SMTP_PASS=your-app-password

.eslintrc.js

@@ -0,0 +1,17 @@
+module.exports = {
+  env: {
+    node: true,
+    es2021: true,
+    jest: true,
+  },
+  extends: 'eslint:recommended',
+  parserOptions: {
+    ecmaVersion: 'latest',
+    sourceType: 'module',
+  },
+  rules: {
+    'no-console': 'warn',
+    'no-unused-vars': ['error', { argsIgnorePattern: '^_' }],
+    'prefer-const': 'error',
+  },
+};

.github/workflows/ci.yml

@@ -0,0 +1,68 @@
+name: CI/CD Pipeline
+
+on:
+  push:
+    branches: [main, develop]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    services:
+      postgres:
+        image: postgres:17-alpine
+        env:
+          POSTGRES_USER: test_user
+          POSTGRES_PASSWORD: test_pass
+          POSTGRES_DB: test_db
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 5432:5432
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: '18'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Generate Prisma Client
+        run: npx prisma generate
+
+      - name: Run migrations
+        run: npx prisma migrate deploy
+        env:
+          DATABASE_URL: postgresql://test_user:test_pass@localhost:5432/test_db
+
+      - name: Run tests
+        run: npm test
+        env:
+          DATABASE_URL: postgresql://test_user:test_pass@localhost:5432/test_db
+          JWT_SECRET: test_secret_key_min_32_characters_long
+
+      - name: Lint code
+        run: npm run lint
+
+  deploy:
+    needs: test
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/main'
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Deploy to production
+        run: |
+          echo "Deploy to your server here"
+          # Add your deployment script

.gitignore

@@ -1,5 +1,43 @@
-node_modules
-# Keep environment variables out of version control
+# Dependencies
+node_modules/
+package-lock.json
+yarn.lock
+pnpm-lock.yaml
+
+# Environment
 .env
+.env.local
+.env.*.local
+
+# Logs
+logs/
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Database
+prisma/dev.db
+prisma/dev.db-journal
+
+# OS
+.DS_Store
+Thumbs.db
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# Testing
+coverage/
+.nyc_output/
+
+# Build
+dist/
+build/
 
-/generated/prisma
+# PM2
+.pm2/

.prettierrc

@@ -0,0 +1,8 @@
+{
+  "semi": true,
+  "trailingComma": "es5",
+  "singleQuote": true,
+  "printWidth": 100,
+  "tabWidth": 2,
+  "arrowParens": "always"
+}

DockerFile

@@ -0,0 +1,33 @@
+FROM node:18-alpine3.18
+
+# Update packages and Install OpenSSL for Prisma
+RUN apk update && apk upgrade --no-cache \
+    && apk add --no-cache openssl
+
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+COPY prisma ./prisma/
+
+# Install dependencies
+RUN npm ci --only=production
+
+# Generate Prisma Client
+RUN npx prisma generate
+
+# Copy source code
+COPY src ./src
+
+# Create logs directory
+RUN mkdir -p logs
+
+# Expose port
+EXPOSE 5000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=40s \
+  CMD node -e "require('http').get('http://localhost:5000/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"
+
+# Start application
+CMD ["node", "src/index.js"]

docker-compose.yml

@@ -0,0 +1,67 @@
+version: '3.8'
+
+services:
+  postgres:
+    image: postgres:17-alpine
+    container_name: eraser-postgres
+    environment:
+      POSTGRES_USER: eraser_user
+      POSTGRES_PASSWORD: eraser_pass
+      POSTGRES_DB: eraser_db
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U eraser_user"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    networks:
+      - eraser-network
+
+  redis:
+    image: redis:7-alpine
+    container_name: eraser-redis
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis_data:/data
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 3s
+      retries: 5
+    networks:
+      - eraser-network
+
+  app:
+    build: .
+    container_name: eraser-backend
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    environment:
+      NODE_ENV: production
+      PORT: 5000
+      DATABASE_URL: postgresql://eraser_user:eraser_pass@postgres:5432/eraser_db?schema=public
+      REDIS_URL: redis://redis:6379
+    env_file:
+      - .env
+    ports:
+      - "5000:5000"
+    volumes:
+      - ./logs:/app/logs
+    restart: unless-stopped
+    networks:
+      - eraser-network
+
+volumes:
+  postgres_data:
+  redis_data:
+
+networks:
+  eraser-network:
+    driver: bridge

ecosystem.config.js

@@ -0,0 +1,27 @@
+module.exports = {
+  apps: [
+    {
+      name: 'eraser-backend',
+      script: './src/index.js',
+      instances: 'max', // Use all CPU cores
+      exec_mode: 'cluster',
+      watch: false, // Disable in production
+      max_memory_restart: '1G',
+      env_production: {
+        NODE_ENV: 'production',
+        PORT: 5000,
+      },
+      env_development: {
+        NODE_ENV: 'development',
+        PORT: 5000,
+      },
+      error_file: './logs/pm2-error.log',
+      out_file: './logs/pm2-out.log',
+      log_date_format: 'YYYY-MM-DD HH:mm:ss Z',
+      merge_logs: true,
+      autorestart: true,
+      max_restarts: 10,
+      min_uptime: '10s',
+    },
+  ],
+};