# Gateway Service

WebSocket API gateway for vehicle (TRex), HMI, and mobile app connections.

## What it does

- Authenticates WebSocket connections via JWT
- Routes messages to Kafka topics
- Manages connection state in Redis
- Serves Swagger docs

## Ports

| Port | Purpose |
|------|---------|
| 8077 | HTTP/WebSocket |
| 11011 | Health check |

## WebSocket Endpoints

- `/ws/trex` - Vehicle connections
- `/ws/hmi` - HMI connections  
- `/ws/mobile` - Mobile app connections

## Build

```bash
# Local
go build .

# Docker
docker build -t gateway -f Dockerfile ../..
```

## Run

```bash
# Required env vars
export KAFKA_HOSTS=localhost:9092
export REDIS_HOST=localhost
export JWK_URL=https://keycloak.example.com/realms/consumer/protocol/openid-connect/certs

./gateway
```

## Configuration

See `deploy/base/configmap-common.yaml` for all options.

Key settings:
- `KAFKA_HOSTS` - Kafka bootstrap servers
- `REDIS_HOST/PORT` - Redis for session state
- `JWK_URL` - JWKS endpoint for JWT validation
- `LOG_LEVEL` - debug, info, warn, error