We Develop Web & Mobile Apps for Connected Operations

// IoT device status sync
async function syncDevices() {
  try {
    const res = await fetch('/api/v2/devices/status', {
      headers: { 'Authorization': `Bearer ${token}` }
    });
    const devices = await res.json();
    updateDashboard(devices);
    publishMetrics(devices.filter(
      d => d.status !== 'online'
    ));
  } catch (err) {
    logger.error('Sync failed', { err });
  }
}

// Live telemetry via WebSocket
const ws = new WebSocket(`wss://api.gcorp.io/stream`);
ws.onmessage = (e) => {
  const t = JSON.parse(e.data);
  store.dispatch(updateDeviceTelemetry(t));
};

// Field inspection with offline queue
data class Report(
    val notes: String,
    val gps: LatLng,
    val photos: List<Uri>,
    val timestamp: Long = System.currentTimeMillis()
)

fun submitReport(report: Report) {
    if (isConnected()) {
        Firebase.firestore
            .collection("reports")
            .add(report)
    } else {
        offlineQueue.enqueue(report)
    }
}

// Equipment status fetch
struct Device: Decodable {
    let id: String
    let status: DeviceStatus
    let lastSeen: Date
}

func fetchStatus() async throws -> [Device] {
    let url = URL(
        string: "\(baseURL)/api/v2/devices/status"
    )!
    var req = URLRequest(url: url)
    req.setValue(
        "Bearer \(token)",
        forHTTPHeaderField: "Authorization"
    )
    let (data, _) = try await
        URLSession.shared.data(for: req)
    return try JSONDecoder()
        .decode([Device].self, from: data)
}