# 3x-ui Node Service

Node service (worker) for 3x-ui multi-node architecture.

## Description

This service runs on separate servers and manages XRAY Core instances. The 3x-ui panel (master) sends configurations to nodes via REST API.

## Features

- REST API for XRAY Core management
- Apply configurations from the panel
- Reload XRAY without stopping the container
- Status and health checks

## API Endpoints

### `GET /health`
Health check endpoint (no authentication required)

### `POST /api/v1/apply`
Apply new XRAY configuration
- **Headers**: `Authorization: Bearer <api-key>`
- **Body**: XRAY JSON configuration

### `POST /api/v1/reload`
Reload XRAY
- **Headers**: `Authorization: Bearer <api-key>`

### `POST /api/v1/force-reload`
Force reload XRAY (stops and restarts)
- **Headers**: `Authorization: Bearer <api-key>`

### `GET /api/v1/status`
Get XRAY status
- **Headers**: `Authorization: Bearer <api-key>`

### `GET /api/v1/stats`
Get traffic statistics and online clients
- **Headers**: `Authorization: Bearer <api-key>`
- **Query Parameters**: `reset=true` to reset statistics after reading

## Running

### Docker Compose

```bash
cd node
NODE_API_KEY=your-secure-api-key docker-compose up -d --build
```

**Note:** XRAY Core is automatically downloaded during Docker image build for your architecture. Docker BuildKit automatically detects the host architecture. To explicitly specify the architecture, use:

```bash
DOCKER_BUILDKIT=1 docker build --build-arg TARGETARCH=arm64 -t 3x-ui-node -f node/Dockerfile ..
```

### Manual

```bash
go run node/main.go -port 8080 -api-key your-secure-api-key
```

## Environment Variables

- `NODE_API_KEY` - API key for authentication (required)

## Structure

```
node/
├── main.go           # Entry point
├── api/
│   └── server.go     # REST API server
├── xray/
│   └── manager.go    # XRAY process management
├── Dockerfile        # Docker image
└── docker-compose.yml
```