Node.js je standard za real-time apps, API backends, SaaS, chat servers, IoT. Drugačiji deployment model od PHP-a — long-running processes, ne request-response cycle. Treba hosting koji to razumije. Ovo je vodič.

Node.js ukratko

• JavaScript runtime (V8 engine).
• Verzije: Node 20 LTS (do travnja 2026), Node 22 LTS (do travnja 2027), Node 24 (current).
• Event-loop, non-blocking I/O.
• Frameworks: Express, Fastify, NestJS, Koa, Hono.
• Real-time: Socket.IO, ws, native WebSocket.

Zašto Node nije standard PHP hosting

• Long-running process — ne pokreće se per-request kao PHP-FPM.
• Treba process manager (PM2, systemd) za auto-restart.
• Treba reverse proxy ispred (nginx) za SSL termination, load balancing.
• Memory leak detection važan (single process serves all requests).
• cPanel-style shared hosting često ne podržava long-running processes.

Tehnički zahtjevi production Node app

• Linux VPS (Ubuntu 22.04/24.04 preferiran).
• Node 20+ ili 22+ LTS.
• nginx kao reverse proxy.
• PM2 ili systemd za process management.
• SSL (Let's Encrypt).
• Database: ovisi o appu (Postgres, MongoDB, Redis).

Sizing

Production setup

# Install Node 20 LTS
curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash -
sudo apt install -y nodejs

# Install PM2
sudo npm install -g pm2

# Run app under PM2
pm2 start ecosystem.config.js
pm2 startup    # auto-restart on reboot
pm2 save

nginx reverse proxy

server {
    listen 443 ssl http2;
    server_name api.example.com;
    
    ssl_certificate /etc/letsencrypt/live/api.example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/api.example.com/privkey.pem;
    
    location / {
        proxy_pass http://localhost:3000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }
}

PM2 cluster mode

Node je single-threaded. Da iskoristiš sve CPU jezgre, koristi PM2 cluster mode:

// ecosystem.config.js
module.exports = {
  apps: [{
    name: 'api',
    script: 'server.js',
    instances: 'max',    // koristi sve CPU cores
    exec_mode: 'cluster'
  }]
};

WebSocket support

Real-time apps (chat, live dashboards) trebaju WebSocket connection. nginx mora forward-at Upgrade headers (vidi config gore). Cloudflare ispred — uključi WebSocket support u dashboard-u.

Database opcije

• PostgreSQL — najpopularnija za Node prod (Prisma, TypeORM, Drizzle).
• MongoDB — za document-based use cases.
• Redis za cache, sessions, queue (BullMQ, Bee-Queue).
• SQLite za małe apps ili edge.

Alternative — managed Node platforms

• Vercel, Netlify Functions — serverless, perfect za API endpoint-e.
• Railway, Render, Fly.io — managed container hosting.
• Heroku — klasik.

Razlika: managed eliminira sysadmin overhead, ali skuplji na scale i manje kontrole.

WMD i Node.js hosting

WMD postavlja Node 20/22 LTS na dedicated VPS — PM2 cluster setup, nginx reverse proxy s WebSocket support, Let's Encrypt auto-renewal. Postgres ili MongoDB ovisno o appu, Redis za cache/queue. Deploy automation kroz GitHub Actions / Gitea Actions ili SSH-based deploy. JetBackup za database + uploads. Monitoring kroz PM2 dashboard + Sentry integration.

Paketi:

• Node Start (mali API): 1-2 vCPU, 2 GB RAM — od ~15 EUR/mj.
• Node Pro (SaaS, real-time): 4 vCPU, 8 GB RAM — od ~50 EUR/mj.
• Node Business (high-throughput): 8+ vCPU, 16+ GB RAM — od ~120 EUR/mj.

FAQ

Node 20 ili 22 LTS? 22 ako kreneš od nule (najduži support). 20 ako migriraš s 18.

PM2 ili systemd? PM2 ima bolji dev experience. systemd je system standard, manje moving parts. Oba radi.

Mogu li Node na cPanel-u? cPanel ima "Application Manager" za Node — radi za male apps, ali sysadmin VPS bolji za production.

Cluster mode mi crash-a — što? Provjeri shared state (sessions, in-memory cache) — mora bit u Redis-u, ne u memory svake instance.

Trebaš Node.js hosting ili deploy automation? WMD postavlja Node + PM2 + nginx + monitoring. Javi se preko kontakt forme.