Connecting to a Device

There are two steps to connecting to a device:

• Discovery: dmk.startDiscovering()
  • Returns an observable which will emit a new DiscoveredDevice for every scanned device.
  • The DiscoveredDevice objects contain information about the device model.
  • Use one of these values to connect to a given discovered device.
• Connection: dmk.connect({ deviceId: device.id })
  • Returns a Promise resolving in a device session identifier DeviceSessionId.
  • Keep this device session identifier to further interact with the device.
  • Then, dmk.getConnectedDevice({ sessionId }) returns the ConnectedDevice, which contains information about the device model and its name.

dmk.startDiscovering().subscribe({
  next: (device) => {
    dmk.connect({ deviceId: device.id }).then((sessionId) => {
      const connectedDevice = dmk.getConnectedDevice({ sessionId });
    });
  },
  error: (error) => {
    console.error(error);
  },
});

Then once a device is connected:

• Disconnection: dmk.disconnect({ sessionId })
• Observe the device session state: dmk.getDeviceSessionState({ sessionId })
  • This will return an Observable<DeviceSessionState> to listen to the known information about the device:
    • device status:
      • ready to process a command
      • busy
      • locked
      • disconnected
    • device name
    • information on the OS
    • battery status
    • currently opened app