How to request data from Android, from a server?

[Fernando Nos]

Hi,

I'm working on a project in which it would be interesting to be able to send a request to an Android device and have it return data received from a blue

 

[Rukbat]

The Android device would have to be running a server app, designed to return the data you request.

 

[Francesco Cozzolino1]

You can use WebSockets.
In this way you can send messages from a server. When the device/s receive it, it will perform the actions provided in your code.