# Development Hosts & Ports

This document defines the default **host** and **port** used by each app/service
in this turborepo.  
Update this file whenever a new service is added or port is changed.

---

## Frontend (React + Vite)
- **Host:** `localhost` (default)  
  - Use `0.0.0.0` if you need LAN access (phone/other device on same Wi-Fi).  
- **Port:** `3000`  
- **Access URLs:**
  - Local: [http://localhost:3000](http://localhost:3000)
  - LAN: `http://<your-ip>:3000` (only if HOST=0.0.0.0)

**Current setup:**  
Frontend is running on `0.0.0.0` and is accessible via the device IP.

**`.env` file:**
```env
NODE_ENV=development
HOST=0.0.0.0
PORT=3000
VITE_API_BASE_URL_BACKEND=http://192.168.1.8:5000
```

`VITE_API_BASE_URL_BACKEND` must point to the backend's IP/port as seen from the browser.  
Use `localhost` if only accessing from the same machine, or the machine's LAN IP for access from other devices.

---

## Backend (Express.js)
- **Host:** `0.0.0.0` (all interfaces)
- **Port:** `5000`  
- **Access URL:** [http://localhost:5000](http://localhost:5000)

**Current setup:**  
Runs on all interfaces and allows configured frontend URLs via CORS. Change `FRONTEND_URLS` to match your setup.

**`.env` file:**
```env
NODE_ENV="development"
HOST=0.0.0.0
PORT=5000
FRONTEND_URLS=http://localhost:3000,http://192.168.1.8:3000
```

---

## Patient Data Extractor Service
- **Host:** `localhost`  
- **Port:** `5001`  
- **Access URL:** [http://localhost:5001](http://localhost:5001)

---

## Selenium Service
- **Host:** `localhost`  
- **Port:** `5002`  
- **Access URL:** [http://localhost:5002](http://localhost:5002)

---

## Payment OCR Service
- **Host:** `localhost`  
- **Port:** `5003`  
- **Access URL:** [http://localhost:5003](http://localhost:5003)

---

## Notes
- `HOST` controls binding: `localhost` = loopback only, `0.0.0.0` = all interfaces (LAN accessible).
- `PORT` controls the service's port. Ports never conflict across separate machines — two office PCs can both run on port 5000 with no issue.
- Frontend uses `VITE_` prefixed variables for client-side access (e.g. `VITE_API_BASE_URL_BACKEND`).
- In production, traffic is routed through Cloudflare Tunnel — see [Cloudflare Tunnel Setup](../README.md#cloudflare-tunnel-setup-remote-access-per-office) in the main README.

---

**Action for developers:**  
1. Copy `.env.example` → `.env` inside each app folder.  
2. Adjust `HOST` / `PORT` if your ports are already taken.  
3. Set `VITE_API_BASE_URL_BACKEND` to the backend's LAN IP if accessing from other devices.  
4. Run `npm run dev` from the repo root.